Как решать задачи быстрее с помощью нейросетей?
Если кратко - только эксперименты и практика. Это самый лучшей путь. Спрашивайте у них всё, что вас интересует. Смотрите на их особенности. Адаптируйте под свою ситуацию.
Ниже поделюсь своими наблюдениями.
Пришлось поменять мышление. Любой вопрос или задача - сразу прикидываешь, к какой нейросети обратиться. В каком режиме её запустить. Или продумываешь цепочку запусков, копи-пастов. Если попадается какой-то большой PDF или текст - сразу туда.
Google и Stack Overflow больше не открываю почти. Ушла эпоха.
И ещё, один и тот же вопрос можно задать сразу всем доступным нейросетям. Тут важна скорость. Надо сделать так, чтобы общение с ними было комфортным и беспроблемным. Далее по диагонали смотрим ответы, думаем что делать дальше.
Я выделяю два основных:
Первый - стандартный. Задаешь вопрос, она отвечает. Возможно диалог продолжается. Важен интеллект нейросети, скорость ответов, способность к рассуждению и анализу.
Второй - deep research. Нейросеть шерстит web. Гуглит за нас. Главное - чтобы она достала всю релевантную информацию. Можно назвать это "RAG для интернета". Тут важно количество сайтов, которые посетит нейросеть и её способность делать систематизацию больших объемов данных. Пример результат deep research ниже:
Исследование o1 pro deep research про графовые визуализации (много букв)Great, I’ll begin researching open-source Python libraries suitable for visualizing medium-sized graphs (around 2,000–2,500 nodes), considering both directed and undirected graphs with arbitrary attributes.
I’ll evaluate each option—including Graphviz, NetworkX, iGraph, PyViz, and additional alternatives—for their strengths, weaknesses, typical use cases, performance, layout support, and licensing. I’ll also include short Python snippets, especially for iGraph, and highlight compatibility with Jupyter Notebooks and standalone scripts.
I’ll get back to you shortly with a comprehensive comparison and overview.
Visualizing a medium-sized graph (roughly 2,000–2,500 nodes with assorted edges and attributes) in Python can be challenging. The ideal library should handle this scale, support node/edge attributes (labels, colors, weights, etc.), offer useful layouts, and work on Windows in both Jupyter notebooks and standalone scripts. Below is a comprehensive overview of open-source Python libraries for graph visualization, including the user-mentioned tools (Graphviz, NetworkX, igraph, PyVis) and additional options. Each is evaluat (python - graph-tool similar package for windows - Stack Overflow)hs, weaknesses, suitability for ~2k-node graphs, attribute/layout support, visual output (static vs. interactive), performance, Windows compatibility, and license. Example code snippets are provided (with an emphasis on igraph usage).
Overview: Graphviz is a classic open-source graph visualization software with multiple layout engines and a DOT language for describing graphs. In Python, one can use interfaces like graphviz or pydot to generate and render Graphviz diagrams. Graphviz produces high-quality static images (e.g. PNG, PDF, SVG).
Strengths: Excellent layout algorithms (hierarchical, force-directed, radial, etc.) and aesthetics for clear static diagrams. Supports extensive node/edge styling and attributes (colors, shapes, labels, subgraphs, etc.). Multiple engines allow tuning for graph type and size (e.g. “dot” for directed graphs, “neato” for undirected, “sfdp” for larger graphs). Output is publication-quality and can be saved to many formats. Cross-platform (Windows, macOS, Linux) with open-source license (Eclipse Public License).
Weaknesses: Not interactive – outputs are static images. Large graphs can become cluttered or slow to render; the computational complexity of certain layouts (especially with many constraints) grows quickly. For directed graphs with hundreds of nodes, the default dot engine may struggle or slow down significantly if many con (graph-tool: Efficient network analysis with Python) rank=same) are used. In one case ~750 nodes with constraints took ~20 minutes to render with dot. Memory and canvas size can also become an issue for very large outputs. Requires installing Graphviz software on Windows (and adding to PATH) since the Python library is a wrapper.
Suitability for 2k Nodes: Borderline but possible. Graphviz can handle graphs in the low thousands of nodes, especially using t (Graphing tool for charts and graphs - Affinity | Forum)te engine. For an undirected 2,000-node graph, using the scalable force-directed engine sfdp (designed for “large” graphs) is recommended. It may still take some seconds to compute the layout, and the resulting image could be very dense. For directed graphs, 2k nodes is challenging – dot might produce a very large, hard-to-read diagram (and could be slow). Simplifying the graph or layout constraints is often necessary at this size.
Attributes & Layouts: Fully supports node/edge attributes like labels, s (graph-tool: Efficient network analysis with Python)ors, shapes, sizes), and can incorporate weights or custom attributes to influence layouts. Graphviz’s DOT language has many attributes to control appearance. Layout options are a major strength – e.g. hierarchical layout for directed acyclic graphs (with dot), radial layouts (twopi), circular (circo), and force-directed (neato for ~1000 nodes, sfdp for larger). These algorithms automatically position nodes; you can also set specific positions if needed.
Output Quality (Static vs. Interactive): Graphviz outputs static images (no built-in interactivity). The quality of static output is high – suitable for documents or reports. In notebooks, Graphviz can display the image inline. No direct interactivity (like dragging nodes or tooltips) is available in the output image, although vector formats (SVG) can be zoomed/scaled without loss.
Performance and Scalability: Graphviz is implemented in C/C++ and is quite efficient for computing layouts up to a few thousand nodes. 2k nodes is within its capability, but layout time might be noticeable (a few seconds or more depending on edges and layout type). Very dense graphs (many edges) further increase layout complexity. Memory usage grows with graph size, and extremely large graphs (tens of thousands of nodes) typically require more advanced tools or si (Graphviz - Wikipedia) For the medium-size range, Graphviz is usually workable, but expect some trial-and-error in choosing the right layout engine and tuning pa (Drawing — NetworkX 3.4.2 documentation)clarity.
Compatibility: Graphviz runs on Windows, but you must install the Graphviz package separately. The Python interface (g ([NetworkX - Wikipedia](https://en.wikipedia.org/wiki/NetworkX#:~:text=NetworkX%20is%20a%20Python%20library,new%20license))ule) will invoke the Graphviz binaries. This works in both Jupyter and standalone scripts (Graphviz will generate an output file or render in notebook). En ([igraph: Network Analysis and Visualization](https://igraph.org/r/pdf/latest/igraph.pdf#:~:text=Maintainer%20Tam%C3%A1s%20Nepusz%20,centrality%20methods%20and%20much%20more))aphviz binaries (e.g. dot.exe`) are on the system PATH on Windows so that the Python library can find them.
License: Eclipse Public License (an o (Visualisation of graphs) license). Graphviz is free to use and distribute. The Python wrappers (graphviz, pydot) are typically MIT/BSD licensed. No licensing obstacles for most uses.
**Example (Python with Grap (GitHub - visjs/vis-network: :dizzy: Display dynamic, automatically organised, customizable network views.) the graphviz library to create a simple graph:
fro ([pyvis-network · PyPI](https://pypi.org/project/pyvis-network/#:~:text=%2A%20License%3A%20BSD%20License%20%28BSD,Requires%3A%20Python%20%3E%3D3.8))mport Digraph
dot = Digraph(comment="My Graph")
dot.node('A', 'Node A') # add node A with label
dot.node('B', 'Node B') # add node B with label
dot.edge('A', 'B', label="A to B") # directed edge with label
dot.render("output.gv", view=True) # save and open the diagram
Thi (Welcome to Bokeh — Bokeh 0.10.0 documentation)duce a directed graph image with two nodes and one edge between them. For larger graphs, you could add nodes/edges in loops or use dot.graph_attr/node_attr to set global styles. (Make sure Graphviz is installed on your system.)
Overview: NetworkX is a pure-Python library for graph (Is Plotly for Python Free?)hat also includes basic drawing capabilities. It is well-known for easy graph manipulation and algorithms, and it can use Matplotlib for simple visualizations. However, visualization is not the main focus of NetworkX. It is often used in combination with other tools (e.g. exporting data to other visualization libraries or using addons) for better graph drawing. NetworkX is cross-platform and works smoothly on Windows. I (cytoscape/ipycytoscape: A Cytoscape Jupyter widget - GitHub)d under a 3-clause BSD license【42†L19 (Cytoscape.js)Strengths: Extremely easy to use for creating and managing graphs in Python. Supports directed/undirected graphs with any (python - graph-tool similar package for windows - Stack Overflow)edge attributes. Integrates with the scientific Python stack. For visualization, it has convenience functions (nx.draw, nx.spring_layout, (graph-tool: Efficient network analysis with Python)uickly plot a graph with Matplotlib. Many layout algorithms are included (spring-force, spectral, circular, planar, shell, etc.) and can be used to position nodes. Because it’s pure Python, it’s highly compatible with Jupyter and can be extended or integrated with other Python visualization frameworks (for example, one can generate coordinates with NetworkX and then plot with Bokeh or Plotly). NetworkX is also ideal for preparing data (computing centralities, filtering subgraphs, etc.) before visualization. License is very permissive (BSD).
Weaknesses: The built-in visualization is limited and not optimized for large graphs. The project explicitly notes that its visualization functionality is basic and may be moved out in the future. Drawing a graph with a couple thousand nodes using pure Python (e.g. spring layout) can be slow. The interactive capabilities are minimal – by default, NetworkX drawing produces a static Matplotlib plot. There’s no native support for pan/zoom or node interactions unless you use an interactive Matplotlib backend or export to another tool. The static plots can also become cluttered for large graphs (overlapping nodes and labels). In summary, NetworkX alone is not a “fully-featured” visualization tool; it’s better for analysis and delegating visualization to other libraries.
Suitability for 2k Nodes: Possible but with caveats. NetworkX can represent a graph of 2,500 nodes in memory and run algorithms on it, but visualizing that many nodes directly with nx.draw will produce a very crowded image and may be very slow to render. The default spring layout on 2k nodes (with O(n²) force calculations) might take significant time in pure Python. If used, one should consider simpler layouts (circular or random) or sampling a subgraph. For static output, NetworkX/Matplotlib can technically draw 2k nodes, but expect overlap unless the graph is sparse or layout is well-tuned. Interactive needs would require coupling NetworkX with another library (e.g. converting to Bokeh or Plotly figure). In practice, NetworkX is often the “data provider,” and you’d use other tools to actually render a graph of this size in an interactive way.
Support for Attributes & Layouts: NetworkX allows arbitrary attributes on nodes and edges (stored as dictionaries). These can be used to influence drawing (e.g. you can pass a node color map based on an attribute). The library provides numerous layout algorithms (spring, Kamada-Kawai, spectral embedding, circular, shell, planar, etc.) which return coordinates for nodes. You can also use Graphviz layouts via networkx.drawing.nx_agraph.graphviz_layout if pygraphviz or pydot is installed. So, all necessary layout options are available. However, styling the visualization (colors, sizes, labels) is done by passing parameters to drawing functions, which is less flexible than dedicated viz libraries. Still, one can achieve custom styling by iterating over nodes/edges and drawing them individually in Matplotlib.
Visual Output: By default, output is a Matplotlib static plot (e.g. in a Jupyter notebook or saved to a file). It’s essentially an image (or vector graphic if saved as PDF/SVG via Matplotlib). Interactivity (zoom, tooltips, etc.) is not provided out-of-the-box, except what basic Matplotlib offers (e.g. you can enable interactive mode or %matplotlib notebook to pan/zoom a bit, but it's not as smooth as web-based interactivity). There is no concept of dragging nodes. For true interactivity, you would export the graph data to another framework. NetworkX documentation itself “highly recommends” using dedicated visualization tools (like Cytoscape, Gephi, Graphviz) for anything beyond basic needs. Indeed, you can export a NetworkX graph to formats like GraphML or JSON and load into those tools if needed.
Performance: NetworkX’s performance is fine for constructing and analyzing a 2k-node graph, but for visualization, the pure Python implementation is slower than optimized libraries. The drawing phase (especially computing a force-directed layout) can become a bottleneck. Once positions are computed, drawing 2500 points and a few thousand lines in Matplotlib is doable but may result in a slow rendering and interaction (Matplotlib is not optimized for thousands of overlapping markers). Memory-wise, 2k nodes is trivial for NetworkX, but if edges are, say, tens of thousands, algorithmic operations slow down. For visualization specifically, consider using NetworkX to generate positions or filter nodes, then use a more efficient plotting backend.
Compatibility: 100% Python and lightweight – fully compatible with Windows, and runs in any standard Python environment or Jupyter notebook. No special system dependencies. Just install networkx via pip/conda. It’s widely used, so it’s well-tested on Windows. In a Jupyter notebook, you might use %matplotlib inline or similar to show plots. In a standalone script, you can use Matplotlib’s plt.show() to open a window with the plot or save to a file.
License: NetworkX is released under the BSD 3-Clause license – it’s free and open-source with very permissive terms, suitable for academic or commercial use without restrictions.
Example: Drawing a small graph with NetworkX and Matplotlib:
import networkx as nx
import matplotlib.pyplot as plt
# Create a graph and add some nodes and edges
G = nx.erdos_renyi_graph(n=20, p=0.1) # 20 nodes, random edges
# Compute a layout (spring layout)
pos = nx.spring_layout(G)
# Draw nodes and edges with labels
nx.draw(G, pos, node_size=50, node_color="skyblue", edge_color="#999999", with_labels=True)
plt.show()
This uses a force-directed layout for a 20-node random graph, coloring nodes and drawing labels. For a larger graph, you might omit labels or adjust node sizes to reduce overplotting. Also, note that for a graph with attributes, you could use those to set colors or labels (e.g., nx.draw(G, pos, node_color=[G.nodes[n]['attr'] for n in G])). While this example is static, NetworkX graphs can be passed to other libraries (see Bokeh and PyVis below) for interactive visualizations.
Overview: igraph is a library designed for efficient graph analysis and visualization, with core implementations in C/C++ and interfaces in Python and R. The Python binding (often imported as igraph or ig) provides access to fast graph algorithms and also includes plotting capabilities. igraph is well-suited for medium-to-large graphs and places emphasis on performance and memory efficiency. It can visualize graphs via built-in routines (using Cairo for static images or an interactive GTK viewer in some environments). The library supports directed/undirected graphs, weighted graphs, and has a rich set of layout algorithms. igraph is open source under the GNU GPL v2+ license.
Strengths: Excellent performance and scalability for graph operations. It “can handle large graphs very well” – far beyond 2,000 nodes (igraph can handle tens or even hundreds of thousands of nodes in memory, and its algorithms are optimized). Many built-in layouts are provided (Fruchterman-Reingold force-directed, Kamada-Kawai, graphopt, tree, circular, grid, etc., plus an automatic layout chooser) – often more than NetworkX offers by default. Graph drawing in igraph can produce high-quality static images using Cairo; it supports plotting to PNG, PDF, SVG, etc., and even plotting inside Matplotlib axes if desired. The styling options include vertex size, color, shape, label text, edge width, color, etc. All these can be driven by vertex/edge attributes (for example, you can set an attribute “color” on vertices and then just call plot() to use those colors). igraph is also efficient in laying out graphs: its implementations of layouts are in C, making them quite fast for a few thousand nodes. The memory footprint for a 2k-node graph is small (internally optimized adjacency lists). Overall, igraph is a great choice when you need to analyze a medium-sized graph and also get a quick visualization without leaving Python. It’s compatible with Windows (pre-built binaries available via pip).
Weaknesses: The visualization produced by igraph, while useful, is static and not interactive. igraph does not offer interactive graph exploration out-of-the-box (no dragging nodes or tooltips like a web plot). The static plots are typically for quick inspection. If you need interactive visualization, you would have to export the graph (igraph can convert to NetworkX or to GraphML, etc.) and use another tool. Another weakness is the GPL license, which is open-source but can be restrictive for inclusion in proprietary projects (this may or may not matter to the user – it’s free to use, but if you distribute software with igraph, GPL terms apply). Additionally, igraph’s Python API might feel less Pythonic to those used to NetworkX (for example, it uses zero-based indexing for vertices internally and methods like g.vs["attribute"] for bulk attribute assignment). Learning the igraph API is a slight upfront cost. In terms of visualization aesthetics, igraph’s defaults are not as polished as Graphviz – one might need to tweak styling to avoid overlapping labels or adjust the layout spacing. There is no built-in legend or advanced styling like curved edges for directed graphs (though you can control arrow sizes for directed edges). Overall, for pure visualization purposes, igraph’s plots are simpler; its real strength lies in combining analysis + basic visualization in one library.
Suitability for 2k Nodes: Very suitable. igraph can comfortably handle and plot a graph with 2,500 nodes. Computing a layout for that size (even a force-directed one) is reasonably fast in C. The resulting static image can be large, but since igraph can output to vector formats (SVG/PDF), you can examine it by zooming in. The plot might be cluttered if all 2k nodes are drawn with labels; typically one would use color or size to highlight important nodes instead of labeling everything. Performance-wise, generating the image is not a big issue (Cairo can handle drawing thousands of circles and lines quickly). If interactivity is not required, igraph offers a straightforward path to visualize medium graphs. If the graph is very dense (lots of edges), the hairball effect is unavoidable in any static visualization – consider filtering or using an appropriate layout. Memory and speed will not be a problem for 2k nodes in igraph (this is considered small by igraph standards).
Attributes & Layouts: igraph fully supports vertex and edge attributes. You can assign attributes (numerical or strings) to vertices and edges (e.g., g.vs["name"] for labels, g.vs["color"] for colors, g.es["weight"] for edge weights, etc.). The plotting function can utilize these attributes: for instance, plot(g, vertex_color=g.vs["color"], edge_width=[w*0.1 for w in g.es["weight"]]) to style by attributes. igraph also offers a rich set of layout algorithms via Graph.layout(). Layouts include: "auto" (chooses for you), "fruchterman_reingold" (force-directed), "kamada_kawai", "lgl" (for large graphs, a multilevel layout), "circle", "grid", "star", "sugiyama" (layered for directed graphs), etc. You can also supply custom coordinates. This means you can likely find a layout that presents your 2k-node graph in a meaningful way. For example, a community graph could be laid out with a force-directed algorithm, or a tree with a Reingold-Tilford tree layout. igraph’s layout functions are implemented in C for speed and can take parameters (e.g., grid size, attraction/repulsion parameters for force-directed layouts). After obtaining a layout (which is essentially a list of coordinates), you pass it to the plot function. Attribute support extends to labels, which can be set per vertex (and selectively displayed or not).
Visual Output: igraph’s plotting produces static images. In Jupyter notebooks, calling ig.plot(g) will by default open a temporary image file and display it (this uses an IPython display hook). You can specify the target parameter to control where the plot goes – e.g., target="graph.png" saves to file, or target=ax (Matplotlib axes) draws within a Matplotlib subplot. By default, if no target is given in a notebook, igraph will try to display inline (PNG or SVG output). The quality is decent: nodes are drawn as shapes (circle, triangle, etc.), edges as straight lines (or curves for loops). Labels can be drawn if provided. One can control font sizes, margins (bbox parameter to set image bounding box size), and other appearance aspects. For higher quality, exporting to SVG and refining in a vector graphics editor is an option. Interactivity: igraph has an interactive mode (in R there is tkplot and in Python, if compiled with GTK support, igraph.plot with no target might launch a GTK window where you can zoom/pan). However, in standard installations on Windows, igraph will likely just use Cairo and not provide interactive GUI. So, essentially, igraph’s output is static in notebooks and scripts. If needed, you could integrate igraph with Plotly or others by getting the igraph layout coordinates and feeding them into an interactive plot manually.
Performance: igraph is highly optimized. Layout computation for 2k nodes is fast (likely under a second for basic layouts, a few seconds for more complex ones). Plotting 2k nodes with Cairo is also fast. The main performance consideration is if you try to draw extremely large graphs (e.g., >100k nodes) or extremely high-resolution images; for 2k nodes this is well within capabilities. In terms of scalability, igraph could handle far larger than 2k nodes in memory for analysis, and reasonably plot perhaps up to tens of thousands (beyond that, a static image would be overwhelming to interpret anyway). So, performance is a strong point – you won’t easily hit a performance ceiling at the 2k scale. Memory usage and speed are both much better than pure Python libraries for graph operations.
Compatibility (Windows & environments): As of recent versions, python-igraph provides precompiled wheels for Windows, so installation is straightforward (pip install igraph or pip install python-igraph). Ensure you install python-igraph (the Python binding) and not confuse it with R’s igraph. On Windows, it should work out-of-the-box in both Jupyter and scripts. In Jupyter, inline plot display works (it will choose PNG by default; if you prefer SVG for sharper graphics, you might set igraph.config['plotting.backend'] = 'svg' or use plot(..., bbox=(width, height)) for sizing). In a standalone script, calling plot(g) will open the default image viewer with the saved image. No external dependencies need to be installed by the user for basic use (Cairo is bundled in the binary wheel). The only caveat is that the igraph license is GPL, which is fine for personal use but something to note if combining with proprietary code.
License: GNU GPL v2 (or later). This is a copyleft license – it won’t affect you if you’re just using it for analysis/visualization, but if you were to redistribute software that includes igraph, you’d need to comply with GPL terms. All the libraries listed in this answer are open-source; igraph’s license is the most restrictive among them. If “open license” is a requirement meaning a more permissive license, keep in mind GPL is not as permissive as BSD/MIT. But it is open-source and free to use.
Example (igraph usage): Below is an example of using igraph in Python to create a graph, set attributes, compute a layout, and plot it:
import igraph as ig
# Create a directed graph with 5 nodes and 5 edges
g = ig.Graph(directed=True)
g.add_vertices(5)
g.add_edges([(0,1), (0,2), (2,3), (3,4), (4,0)])
# Assign a label and color to each vertex
g.vs["label"] = [f"Node {i}" for i in range(g.vcount())] # label for each node
g.vs["color"] = ["skyblue", "skyblue", "lightgreen", "lightgreen", "tomato"] # color groups
# Compute a layout for the graph (Kamada-Kawai layout in 2D)
layout = g.layout("kamada_kawai")
# Plot the graph to an inline figure (in Jupyter) or to a file
ig.plot(g, layout=layout, target=None, vertex_size=30, vertex_color=g.vs["color"])
This code will create a directed cycle with an extra edge (0→2). We assign labels "Node 0"... "Node 4" and color the nodes (two lightgreen, two skyblue, one tomato) to illustrate attribute usage. The layout("kamada_kawai") positions the nodes in a force-directed layout. Finally, ig.plot renders it – in a notebook, this will display the graph image; in a script, you could specify target="graph.png" to save it. You should see five nodes with the given colors, arranged roughly in a circle due to the cycle, and arrows on edges (since the graph is directed). igraph automatically uses the “label” attribute for vertex labels, and the directed edges will have arrowheads. This snippet demonstrates how straightforward it is to go from data to visualization with igraph. (For a 2000-node graph, you would typically not set all labels, or you’d adjust the plotting parameters, but the approach to layout and styling is the same.)
Overview: PyVis is a Python library that wraps the popular vis.js network visualization toolkit (specifically the vis-network component) for easy use in Python. It generates interactive network graphs that can be viewed in Jupyter notebooks or exported to standalone HTML files. PyVis is designed for quick, interactive visualizations with minimal code, and it leverages vis.js’s capability to handle a few thousand nodes directly in the browser with physics-based layouts. It’s an excellent choice for exploring a graph interactively (panning, zooming, dragging nodes) without leaving the Python environment. PyVis is open-source (BSD 3-Clause license).
Strengths: Interactive visualization is the primary strength – the output is an interactive JavaScript canvas (using HTML/JavaScript in the background), which supports zooming, panning, tooltips on hover, and dragging of nodes. The interactivity is in real-time: you can drag nodes and see the network reorganize (if physics is enabled). PyVis requires very little code to get started; it can even take a NetworkX graph object directly via net.from_nx() and produce an interactive visualization in a notebook or HTML file. It supports all vis.js customizations: node sizes, colors, labels, shapes (image or icon nodes), and edge styles (including arrows for directed edges, dashes, etc.). You can add physics simulation (force-directed layout that runs live) or use precomputed coordinates. It also has a built-in UI to toggle physics or other settings. The quality of the visualization is high for on-screen exploration – nodes can be labelled or have pop-up titles, and you can zoom into clusters. Performance: vis.js is known to handle “a few thousand nodes and edges” smoothly in modern browsers. The library itself notes that it works well up to a few thousand elements, which covers the 2k-node range, and even provides cluster support for larger graphs. Since the heavy lifting is done in the browser (in JavaScript, often leveraging HTML5 Canvas/WebGL), it can be quite efficient. PyVis is purely a generator of the HTML/JS, so it’s lightweight on the Python side. Another strength is easy sharing: the network can be saved as an HTML file that anyone can open in a web browser to interact with, without needing any special software. This is great for demonstrations or deploying a result. PyVis works on Windows (just needs a browser) and in Jupyter (it can render inline if net.show("something.html") is called with notebook=True or if the environment is a Jupyter Notebook). The integration with NetworkX means you can use NetworkX for analysis or generating the graph, then visualize with PyVis for interactivity.
Weaknesses: Being browser-based, very large graphs (beyond a few thousand nodes or say >10k edges) will start to lag or may not render smoothly. The “medium-sized” range of 2,000–2,500 nodes is around the upper comfortable limit for vis.js in real-time; if the graph is dense, you might feel some sluggishness when dragging or zooming, as the browser has to redraw many elements. Also, PyVis is primarily for visualization, not analysis – you typically will need to prepare your graph (and perhaps do layout or attribute computation) beforehand (though vis.js can do its own force simulation). Another limitation is that PyVis/vis.js doesn’t produce static image outputs readily – it’s meant for interactive use. If you need a static image for a publication, you’d have to snapshot the HTML or use other means (there’s no built-in “export to PNG” in PyVis, though one could manually screenshot or use Selenium). PyVis also runs the risk of producing cluttered visuals if you don’t manage the physics or clustering – when you have 2500 nodes, you may want to enable the physics stabilization and maybe cluster some nodes (vis.js can group nodes into clusters interactively or programmatically). In terms of development status, PyVis is a relatively thin wrapper; as of version 0.1.x it’s functional but not as mature as, say, NetworkX. That said, it’s quite straightforward. Another consideration: because it produces HTML/JS, the environment where you use it needs to support rendering that (standard Jupyter Notebook works; JupyterLab might need the ipywidgets enabled or a different approach; in non-notebook contexts you just open the HTML in a browser). This is usually fine on Windows. Lastly, while vis.js is powerful, customizing beyond what PyVis exposes might require diving into the generated HTML/JS.
Suitability for 2k Nodes: Good, within the browser’s limits. As noted, vis-network (the engine behind PyVis) states it works smoothly up to a few thousand nodes/edges. So a graph with 2,000 nodes and a few thousand edges should be quite interactive on a typical modern computer/browser. The initial load might be a second or two as it sends the data to the browser and initializes the physics simulation. Once loaded, you can explore the graph. If the graph is extremely dense (say each node connected to many others), the visualization could be visually overwhelming; using the physics layout helps space it out, but you might still end up with a hairball. Interactivity can mitigate that by letting you zoom into sections. There is a built-in clustering if needed to combine nodes and reduce on-screen complexity (either automatically or via the UI). So for the medium-size range, PyVis is quite suitable, especially if your goal is to explore the graph structure dynamically rather than create a static diagram. It’s also worth mentioning that 2k nodes in a browser will consume memory – not too much (likely a few tens of MB in the worst case), which is fine on most machines. In summary, PyVis is one of the better options for directly visualizing a 2k-node graph interactively.
Attributes & Layout: PyVis supports graph attributes through vis.js. You can add nodes with attributes like title (hover text), label (visible text on node), color, size, shape (e.g. 'circle', 'square', or even an image URL), groups (which can assign color/shape schemes), and edges with attributes like width, color, label, arrows (to display arrowheads for directed edges), etc. Most of these you can set in Python by methods like net.add_node(n, label="X", color="blue", title="This is node X") and similarly add_edge. If using NetworkX integration (net.from_nx(G)), PyVis will attempt to transfer NetworkX node attributes (like title, size, etc.) if they exist, or else you can customize after importing. Layouts: vis.js by default uses a physics simulation (force-directed) to layout the graph. Nodes will initially distribute and then adjust according to a force model (you can configure physics parameters or turn it off). If you prefer a fixed layout (say, geospatial or a circular layout you computed), you can assign each node a position (x,y) and disable physics so they stay put. Vis.js also has an option for hierarchical layout (if you set hierarchical=True in PyVis config or use net.barnes_hut() etc. to tweak physics). So you have flexibility: either let vis.js handle it (usually looks good for exploratory purposes) or use your own coordinates. The physics simulation is nice because it can separate clusters of nodes naturally. For 2k nodes, it might bounce around a bit at first then stabilize – PyVis typically runs a stabilization phase so that the graph settles. In interactive mode, you can also enable a stabilization toggle UI. In summary, attribute support is strong (covering all typical visual encodings) and layout is handled by a robust physics engine by default.
Visual Output (Interactive vs Static): The output of PyVis is an interactive HTML/JavaScript. In a Jupyter Notebook, net.show("graph.html") will save an HTML and display it (you’ll see the interactive frame right in the notebook). In a standalone script, calling net.show("graph.html") writes the file which you can open in a browser. The interactivity includes: dragging nodes (if physics is on, others will move accordingly in real-time), clicking nodes (can trigger an event or just highlight, and by default the node’s "title" attribute shows as a tooltip on hover), zooming (mouse wheel or touchpad), and panning (dragging blank space). You can even select nodes or have the network respond to clicks via JavaScript (PyVis doesn’t expose a Python callback for click events directly, but you could output some JS to handle it). There is no direct static image output – if you need one, you would have to manually capture a screenshot of the rendered graph. The quality of what you see on screen is good: nodes and edges are drawn smoothly by Canvas. If you zoom in, since it’s pixel-based, eventually you’ll see pixels (unlike an SVG that is infinite resolution), but you’d have to zoom extremely deep. Normal usage doesn’t suffer quality issues. The interactive UI can be enhanced: PyVis allows toggling a physics configuration widget (so users can adjust repulsion, etc., on the fly). Compared to other interactive tools, vis.js via PyVis is one of the more feature-rich in terms of user interaction with minimal coding.
Performance: As mentioned, a few thousand nodes/edges run fine. The performance bottleneck is the browser’s capability. Each node is an element that has to be drawn and possibly labeled; each edge is a line (possibly with arrows). The vis.js library is quite optimized (it can use Barnes-Hut approximation for forces, etc.). At ~2k nodes, performance should be acceptable on a modern PC. If you notice lag, PyVis/vis.js provides options to improve it: enabling clustering to reduce drawn elements, simplifying physics (or turning it off once stabilized), or limiting what is drawn (e.g., maybe not show labels for all nodes unless zoomed in, though that might require custom logic). The memory usage in the browser and the size of the HTML could be a consideration: an HTML with 2500 nodes and, say, 5000 edges might be a few megabytes. This is usually fine. PyVis itself adds negligible overhead (it’s just preparing JSON for vis.js). In summary, for the target graph size, performance is generally good, but be mindful that pushing far beyond (like 10k nodes) would likely require advanced techniques (like WebGL or downsampling).
Compatibility: PyVis is pure Python for the setup and relies on the client-side (browser) for rendering. It works on Windows, since it just needs a browser (which every Windows machine has). In Jupyter Notebook Classic, it works seamlessly. In JupyterLab, as of some versions, you might need to use net.show() to open in a separate tab or use the iframe workaround, because JupyterLab’s rendering differs – but these are minor details. For standalone use, any browser (Chrome, Firefox, Edge, etc.) will display the saved HTML. No additional installation is required for the user viewing the HTML; all necessary JS/CSS is bundled by PyVis (it includes links to vis-network library via CDN by default). The library requires Python 3.8+ and depends on networkx (for some internal conversions) and jinja2 for templating, which are installed automatically. PyVis’s license is BSD, which is business-friendly. Overall, it’s very compatible and easy to use in most environments.
License: BSD-3-Clause (for PyVis itself). The underlying vis-network (vis.js) library is MIT licensed, so overall all components are open-source and permissive. This means you can use PyVis freely in any project.
Example: Using PyVis to visualize a NetworkX graph interactively in a Jupyter Notebook:
from pyvis.network import Network
import networkx as nx
# Create a random graph with 30 nodes and probability 0.2 for edge creation
G = nx.erdos_renyi_graph(30, 0.2)
# Initialize PyVis network
net = Network(height="600px", width="800px", notebook=True)
# Convert NetworkX graph to PyVis (this retains nodes and edges)
net.from_nx(G)
# Set some physics options (optional)
net.barnes_hut(gravity=-20000, central_gravity=0.3, spring_length=100)
# Display the graph (within Jupyter, this will show an interactive canvas)
net.show("example.html")
In a notebook, after running this, an interactive network should appear, with 30 nodes connected randomly. You can hover to see node IDs, drag them, and zoom. This example shows how little code is needed: we created a NetworkX graph and fed it to PyVis. We also tweaked the physics (Barnes-Hut algorithm with custom gravity values) just to show that customization is possible. For a larger graph (2000+ nodes), you would similarly do net.from_nx(G) or add nodes via net.add_node. It’s often useful to set node labels or sizes based on attributes so that the interactive visualization is more informative (for example, using degree or community membership to size/color nodes). PyVis makes it straightforward to incorporate those details.
Overview: Bokeh is a powerful Python library for interactive visualization targeting web browsers. While commonly used for plots (scatter, time series, etc.), Bokeh also supports network graph visualization through its GraphRenderer model. Bokeh can integrate with NetworkX via the convenience function from_networkx, which makes it easy to convert a NetworkX graph into a Bokeh plot. The result is an interactive plot (pan/zoom, hover) in a notebook or web page. Bokeh’s emphasis is on interactivity and customizability; you can create rich dashboards. For networks, it provides basic interactive visualization (though not physics-based simulation like vis.js). Bokeh is open source (BSD-3 license) and works on Windows (as well as Linux/macOS).
Strengths: Interactive plotting with ease of integration – using from_networkx(G, layout_func) you can generate a Bokeh graph visualization in just a few lines. Bokeh plots allow zooming, panning, tooltips, and selection out-of-the-box. For example, you can have a hover tool that shows a node’s attributes when you mouse over, or click a node to highlight it. Unlike static Matplotlib, Bokeh outputs to an HTML/JS canvas similar to PyVis, but it’s Python-driven and doesn’t require writing JS manually. Bokeh can handle a few thousand glyphs on the screen reasonably well, especially if using the optional WebGL acceleration for points (Bokeh can use WebGL for large scatter plots). For 2k nodes, performance is generally fine. Another strength is customization: you can map data columns to visual properties easily. For instance, if your graph’s nodes have a “community” attribute, you can assign a color palette so each community gets a different color. This is done by adding the attribute to the Bokeh ColumnDataSource and then using it for fill color, etc.. Bokeh is also versatile in output: it can show plots inline in Jupyter, or be used to create standalone HTML files, or even power interactive web apps (via Bokeh server). On Windows, it runs without issue and will open a browser tab for output if using show(). Bokeh’s interactivity does not require an external server (for simple usage, it uses JavaScript in the notebook or HTML). Additionally, Bokeh is part of the broader HoloViz ecosystem (formerly sometimes called “PyViz”), which means it can integrate with tools like HoloViews or Datashader for advanced use cases. For example, Datashader can render extremely large graphs by rasterizing them, though that’s more for millions of points (beyond our scope). Still, know that Bokeh can work with Datashader if you need to visualize, say, 100k nodes as an aggregated image. For our medium size, Bokeh alone is sufficient and provides a good balance of interactivity and ease of use.
Weaknesses: Bokeh’s network graph support is not as full-featured as dedicated network tools. It does not provide physics simulation or automatic avoidance of overlaps beyond what the layout algorithm gives you. So if you want to manually drag nodes around, that’s not trivial (though you could potentially add a custom JS callback to drag, it’s not built-in like vis.js). The edges in Bokeh are by default straight lines (you can’t easily get curved edges for directed graphs without manual effort). If the graph is very dense, the default rendering will show a hairball, and Bokeh won’t cluster or hide overlaps automatically. For 2k nodes, if many edges are present, the canvas can get busy; Bokeh doesn’t have a concept of “level-of-detail” rendering for graphs (it does for scatter via Datashader if integrated). Another consideration: Bokeh’s file output (HTML) size can become large if there are thousands of objects, since it may inline data. However, it’s generally manageable for a few thousand nodes/edges. Bokeh also has a bit of a learning curve for more complex customizations – while simple use is straightforward, if you want to do something like color edges by weight or animate the graph, you need to manipulate data sources and maybe write JavaScript callbacks. Compared to PyVis, Bokeh is more general-purpose (which is both strength and weakness; it’s not specialized just for networks). Finally, while Bokeh’s interactive features are great (hover, zoom), the responsiveness with a few thousand points might not be as smooth as a pure D3 or WebGL solution if you push it (although enabling WebGL for the renderer can help with many nodes). Summarizing: Bokeh is excellent for static layout + interactive viewing, but not for dynamic physics or extremely large networks beyond a few thousand elements without extra tools.
Suitability for 2k Nodes: Fairly good. Bokeh can display 2,000 nodes and corresponding edges in a plot. You can zoom in to inspect parts of the network and hover for details. Performance should be acceptable: panning/zooming a canvas of that many glyphs is fine on modern hardware, though initial rendering might be a tad slow if each node is drawn with complex glyphs. Using simpler glyphs (like circles for nodes, lines for edges) is recommended. If needed, Bokeh can use WebGL for the node renderer to accelerate drawing many points. There have been demos of Bokeh handling thousands of points interactively; 2k is within reason. The main challenge is visual clutter, which is a data issue – you might mitigate by sizing nodes smaller, or using hover to show labels instead of drawing all labels permanently. One nice thing: if only a subset of nodes are of interest, Bokeh can let you filter or highlight dynamically via widgets (but that requires setting up a Bokeh server app or using CustomJS filters). If you wanted to use Bokeh for something like seeing which part of the graph is which, you could color by communities and add a legend or a selection tool. Up to 2.5k nodes, these interactions will still work. If you try, say, 10k nodes with edges, you might hit some sluggishness, but at 2k it’s usually fine. Memory usage is not a big concern for 2k nodes; the browser can handle it.
Attributes & Layouts: Bokeh’s from_networkx function will take a NetworkX graph and apply a layout function (by default spring layout or any layout function you pass). Essentially, you supply coordinates via that. If you want a specific layout (e.g., circular or your own algorithm), you can compute positions with NetworkX or other means and feed those coordinates in. Once the graph is in Bokeh’s GraphRenderer, the node and edge data are in two ColumnDataSource objects (one for nodes, one for edges). These data sources can include any extra columns you want – for example, you might add a “community” column for each node, or an “importance” score. Then you can use Bokeh’s property mapping to tie those columns to visual properties. For instance, you can do graph.node_renderer.data_source.data['color'] = list_of_colors and set graph.node_renderer.glyph = Circle(size=5, fill_color='color') to color nodes by that column. Similarly, edges could have weights and you map that to line_width. Bokeh supports vectorized styling, meaning you can style each node/edge independently based on data. It also supports hover tools: you can add HoverTool(tooltips=[("ID", "@index"), ("degree","@degree")]) where @index and @degree refer to fields in the node data source (you’d have to compute degree and store it in the data source). For labels, Bokeh doesn’t automatically label nodes, but you can use the LabelSet or a Label glyph. Alternatively, each node could be drawn with text glyph by using the node index or attribute as text (there’s an example in Bokeh’s documentation of adding labels by using a separate glyph for text on the node coordinates). Layout algorithms themselves (like force-directed) are not run in the browser; you would typically compute coordinates in Python (using NetworkX’s spring_layout for example). So unlike vis.js, the layout is static once computed; users can’t cause nodes to repel each other dynamically. However, because Bokeh is interactive, one could incorporate a slider or play button to move nodes (if you precomputed a layout trajectory or something), but that gets complex. For most, you’ll pick one layout and stick with it. Bokeh doesn’t have built-in multiple layout algorithms beyond what you can call from NetworkX or manually code.
Visual Output: The output is interactive HTML/JavaScript (just like PyVis and Plotly). In Jupyter notebooks, using show(plot) will display the interactive figure inline. You can also output to an HTML file or use Bokeh Server for live apps. The interactivity by default includes pan, zoom, reset, and save (there’s a toolbar with those tools). You can add hover tools as mentioned, and also tap/click tools to select nodes. If selection is enabled, clicking a node highlights it (and one can use that selection to trigger other linked plots if doing a dashboard). One thing Bokeh provides is the ability to link multiple plots – for instance, if you had a network and maybe a histogram of node degrees, you could link selections between them. This is more dashboard-like functionality. Bokeh also has an “interactive legend” feature (which can let you hide/show glyphs by group, though for a graph you’d have to set that up carefully). The quality of the rendering is good; Bokeh’s default output is vector-like (it draws to canvas but you can save as PNG or SVG if needed). Note: Bokeh has an export_png and export_svg functionality if you install the required orca or Selenium drivers – so you can get a static image out if necessary. The interactive graph can thus be converted to a static image for reports if needed. However, the static conversion is not as straightforward as Graphviz’s direct output; it’s more of a screenshot of the interactive view. As for design, you have full control over glyphs: you can change node shapes (circles, squares, etc. by changing the glyph), and edge glyphs (Bokeh uses MultiLine for edges, which by default draws straight lines between node coordinates). If you wanted curved edges or arrows, you’d have to manually compute them or use arrow annotation for directed edges (Bokeh can draw arrowheads on lines via an Arrow annotation). There are community examples of adding arrowheads to Bokeh network graphs (one approach is to add an Arrow for each edge specifying start/end). It’s not as trivial as setting an option, but doable. In summary, the output is highly customizable and interactive, but achieving some network-specific styling might require additional code.
Performance: Bokeh can handle on the order of several thousand nodes/edges. Each node is one glyph (or one per node) and edges can be combined in a single MultiLine glyph (which is good for performance). With 2500 nodes and maybe a few times that in edges, the plot should remain responsive for panning and zooming. If it becomes slow, enabling WebGL (output_backend="webgl" on the figure or renderer) can speed up rendering of points significantly (though text labels might not be webgl-accelerated). The initial rendering might take maybe a second or two. Interaction events (like hover) might have a slight delay if too many events are firing, but usually it’s fine unless you attach something heavy. If comparing to PyVis: PyVis/vis.js might be a bit smoother for large networks because it’s specifically optimized for that scenario, whereas Bokeh is a general plotting library. But both should handle 2k-scale similarly. Bokeh’s advantage is if you want to integrate with other data or plots, it's easier in one coherent environment. Memory: the data is stored in the browser as JSON, which for 2k nodes isn’t huge. If each node had many attributes it could increase size, but still in the low megabytes likely. Another potential performance trick: Bokeh has a decimation feature (for scatter plots, it won’t draw every single point if they’re too many and too small) – not directly relevant to graphs, but just to mention how it handles overload. Overall, expect Bokeh to perform adequately for the given size, but maybe avoid extremely dense edge situations or try Datashader if you need to visualize something like a complete graph of 2k nodes (which is ~2 million edges – that’s beyond what normal dynamic drawing can handle).
Compatibility: Completely compatible with Windows. Just install via pip or conda (pip install bokeh). It works in notebooks and standalone scripts (opening a browser for output). No special system dependencies. One thing to note: if using JupyterLab, an extension used to be required for Bokeh, but in latest versions Bokeh provides a MIME renderer that works without extra extensions. In classic Jupyter Notebook or JupyterLab, Bokeh plots should display fine. In VSCode or other IDEs, you might need to open the output HTML. Bokeh can also embed in web frameworks (Flask, Django) if needed. The license is BSD (very permissive), so no issues using it in any context. Because Bokeh is pure Python (with JS output), there are no compilation issues on Windows.
License: BSD 3-Clause (same as many tools in the SciPy stack). Completely open-source.
Example: Using Bokeh to visualize a NetworkX graph with interactive hover:
from bokeh.plotting import figure, show, from_networkx
from bokeh.models import HoverTool
# Suppose G is a NetworkX graph we already have (with some node attributes)
# For demonstration, create a simple graph:
import networkx as nx
G = nx.karate_club_graph() # Zachary's Karate Club graph (34 nodes)
# Compute a layout for G (using NetworkX spring layout)
pos = nx.spring_layout(G, seed=42)
plot = figure(title="Network (Karate Club)", width=600, height=600,
x_range=(-1.1,1.1), y_range=(-1.1,1.1),
tools="pan,wheel_zoom,save,reset") # enable some tools
plot.axis.visible = False # no axes for a network graph
# Create a Bokeh graph from the NetworkX data and layout
graph_renderer = from_networkx(G, pos, center=(0,0))
# Set node properties (e.g., size and color by club attribute)
# Add an attribute in data source for club:
club = [G.nodes[n]['club'] if 'club' in G.nodes[n] else 'None' for n in G.nodes()]
graph_renderer.node_renderer.data_source.data['club'] = club
graph_renderer.node_renderer.glyph.size = 10
graph_renderer.node_renderer.glyph.fill_color = "skyblue"
# Add hover tool to display the 'club' attribute of each node
hover = HoverTool(tooltips=[("Node", "@index"), ("Club", "@club")])
plot.add_tools(hover)
plot.renderers.append(graph_renderer)
show(plot)
This example takes the well-known karate club social network graph and visualizes it. We use NetworkX to compute a layout (spring layout) and then pass both the graph and layout positions to from_networkx. We then customize the node renderer: here, we add a data column 'club' to indicate each node’s club affiliation (an attribute in this dataset) and add a HoverTool that shows the node index and club on hover. The nodes are drawn as circles of size 10 with skyblue color, edges are default black lines. The output is an interactive plot – you can zoom, pan, and hover to see data. On Windows, running this (for example, in Jupyter or via python script.py) will open or display the plot. This demonstrates how Bokeh can incorporate graph attributes (like 'club') into the visualization. For a larger graph, the approach is similar: ensure you have positions (you could still use from_networkx which will call a layout for you if you provide a layout function or use the default spring). You might also consider using different colors/sizes by attribute to make the visualization meaningful at 2000 nodes (for example, highlight a subset of nodes). The code above focuses on basic usage; Bokeh can do much more (like adding legends, filtering, etc.) with additional work.
Overview: Plotly is a popular Python library for interactive plotting (both 2D and 3D) which produces web-based visualizations. Plotly primarily excels at charting, but it can also be used to visualize networks by treating node positions as points and edges as line segments. There isn’t a single high-level “network graph” API in Plotly akin to from_networkx (although Plotly can convert a NetworkX graph via nx.to_pandas_edgelist or similar to get coordinates). Instead, users typically prepare coordinate lists and use Scatter traces for nodes and edges. However, Plotly’s interactive capabilities (zoom, pan, hover, etc.) and its support for large numbers of points with WebGL make it a viable choice for medium-sized graph visualization. Plotly is open-source (MIT license) and works on Windows (it’s purely Python/JavaScript). It can display in notebooks (using the plotly.offline or just using Plotly in Jupyter which outputs an interactive figure) or produce standalone HTML files. Additionally, Plotly has a component called Dash Cytoscape for networks, which we’ll discuss in the next section, but here we focus on using core Plotly.
Strengths: Interactive and publication-quality visuals. Plotly graphs are beautiful and highly customizable. For networks, using Plotly gives you access to rich hover info, the ability to embed the visualization easily in web pages or notebooks, and even do 3D visualizations of graphs. For example, one could compute a 3D layout (using an algorithm or even randomly) and use Plotly’s 3D scatter to plot nodes in 3D space with edges as 3D lines – this can be useful for certain datasets or just to avoid overlapping in 2D. Plotly is also declarative and fairly easy to use for basic cases: if you have arrays of node coordinates and edge coordinates, you can create a scatter trace for edges (with mode='lines') and one for nodes (with mode='markers'), and Plotly will draw them. Performance-wise, Plotly can handle a few thousand points; by default it might use SVG for scatter plots, but it can switch to WebGL (Scattergl) for better performance on large numbers of points. A network of 2500 nodes and a few thousand edges can be rendered – if needed, you can explicitly use go.Scattergl for nodes to leverage WebGL. Plotly also supports hover text per point, which is great for showing node labels or properties on hover (you might not label all nodes permanently, but on hover you can show the node’s name or other data). Plotly figures are easily shareable (just like Bokeh or PyVis, an HTML output can be created). They are also static-exportable using Orca or Kaleido – meaning you can generate a PNG or SVG image of the interactive graph if needed for a report. On Windows, Plotly works seamlessly (install via pip, no special dependencies). The MIT license is very permissive. Another strength: Plotly can be integrated into Dash to create web applications with network graphs (though for heavy network-specific features, Dash Cytoscape might be more suitable). Lastly, Plotly’s ecosystem includes Plotly Express, which has simple functions, but for network graphs one would typically use the lower-level graph_objects interface.
Weaknesses: There is no one-liner function like plot_network(G) – you have to do some work to prepare the data for Plotly. This means computing a layout (using NetworkX or igraph or another method) to get x, y coordinates for each node, then assembling edge traces. It’s not too much work (we’ll sketch an example), but it’s more manual than PyVis or Bokeh. Another weakness is that Plotly’s rendering of many line segments (edges) might become slow if edges are drawn individually. A trick is to draw all edges as a single scatter trace with a lot of segments (using None to break segments), which is efficient. Still, if you have several thousand edges, the hover for edges is tricky (by default you might not want hover on each edge, or you’d combine them). Plotly also doesn’t support node dragging or dynamic physics – it’s a static layout visualization (though you can simulate motion by updating the figure in a notebook with code, but that’s not trivial and not built-in). Essentially, once the figure is drawn, you can pan/zoom and hover, but you cannot rearrange nodes or have them respond to forces in the UI. So it’s interactive in viewing, but not in graph manipulation. Another potential downside: if you include text labels for each node in Plotly, the graph could become cluttered and performance may drop, because text rendering for 2000 points is heavy. It might be better to use hover text rather than always-on labels. Also, while Plotly can do 3D, interpreting a 3D network can be difficult for the user (and rotating a 3D graph with 2500 nodes might be heavy). On 2D, it’s straightforward. Plotly’s focus is not graphs, so you won’t get network-specific features like automatic community detection or built-in graph algorithms – you’d do that in NetworkX or igraph and then just visualize with Plotly. So it’s more of a visualization sink. Another limitation: for very large numbers of edges, Plotly might face browser memory limits or become slow (similar to other browser-based solutions). At 2k nodes, if each node has, say, average degree 50, that’s ~50*2000/2 = 50k edges; that likely is too many to draw clearly. So as always, medium-size is okay but large dense graphs will overwhelm any normal visualization.
Suitability for 2k Nodes: Capable. Plotly can render a graph of this size, especially if you use its WebGL mode for the nodes and maybe edges. 2k nodes (as markers) is fine; a few thousand edges (lines) are fine. The visualization will allow zooming into sections, and hovering to identify nodes of interest. If the graph has structure, you can color nodes by community or size them by degree – Plotly can reflect those in marker colors and sizes. If you have multiple attributes, you could allow the user to toggle which attribute to color by (with a drop-down, though that gets into Dash interactivity). Purely as a static-but-interactive figure, it’s suited for exploratory analysis when you want more freedom than a static image but you don’t necessarily need real-time physics. For example, you might use igraph to compute a nice layout (which accounts for weights or something) and then feed that to Plotly to interactively examine clusters by zooming and hovering. As long as you keep the total count of points+edges on the order of a few thousand, Plotly handles it. If you approached 10k nodes, you’d definitely need to use Scattergl and even then the edge count might become an issue. But at 2k, it’s within the typical usage (Plotly has examples with thousands of points in scatter plots using WebGL). Note: enabling WebGL (Scattergl) can make interactions smoother for large numbers, but may disable some features like hovering on every single point (instead it might show a single hover box for a group of points). For network visualization, that’s usually fine.
Attributes & Layout: You will manually incorporate attributes via marker properties. For instance, if nodes have a partition attribute, you might map that to marker color by providing a list of colors corresponding to each node’s community. You can create a go.Scatter for nodes with marker=dict(color=colors, size=sizes, symbol=symbols, line_width=...) etc., to reflect attributes. Labels can be added as text in the scatter (which will show as labels if mode='markers+text') or better, as hovertext so that when you hover on a node you see info like name, degree, etc. Edges are typically drawn all in one trace: you take each edge (u,v) and create a sequence of [x_u, y_u, x_v, y_v, None] for x-coordinates (and same for y) so that the None breaks the line between edges. This way one Scatter with mode='lines' can draw all edges. If you have edge attributes (weights), you could potentially draw multiple edge traces for different categories (like thick vs thin edges). However, detailed edge styling is limited – Plotly’s lines can have different colors per trace but not easily per segment within one trace (unless you split into multiple traces). For simplicity, many just draw all edges in grey or light color to put focus on nodes. As for layout, you need to provide the coordinates. Typically you’d do something like: pos = nx.spring_layout(G) in NetworkX, then extract the x,y for each node. If using 3D: pos3d = nx.spring_layout(G, dim=3) to get x,y,z. Once you have positions, you feed them into the Plotly scatter data for nodes and edges. So the heavy lifting of layout is done externally (NetworkX, igraph, or Graphviz via coordinates). There’s no real-time layout happening. If the graph has geographic context or some specific coordinates, you can even overlay nodes on a map with Plotly, but that’s a niche case. Summarily, attribute support is manual but flexible – you decide how to encode each attribute into visual properties, and Plotly provides the tools to do so.
Visual Output: Plotly outputs an interactive figure (just like Bokeh and PyVis) in the browser. In a Jupyter notebook, simply displaying the figure object shows it inline. You get interactive pan, zoom, box select, lasso select (if enabled for scatter points), and hover. By default, Plotly’s mode bar (the little toolbar) allows downloading as PNG, zoom extents, toggle hover info, etc. That’s convenient for quick exports. If using Plotly in an offline mode, everything is self-contained. One interesting feature: you can use Plotly’s snapshot tools (Plotly's write_image with the Orca/Kaleido engine) to generate static images programmatically. So if you wanted a static version for a report, you can get the exact same rendering as a PNG or vector graphic. Plotly graphs can also be embedded in web pages easily by saving to HTML or by uploading to Plotly Cloud (if desired). The interactive performance for panning/zooming is usually good for a few thousand points; you can zoom into very fine detail if needed. However, unlike a dedicated network viewer, you can’t click a node to highlight its neighbors easily (you could simulate that by using the selection tools or by writing a Dash app with callbacks to highlight neighbors). So the interactions are more generic (not network-specific). If a user selects a node with the lasso, you could see which node(s) are selected (their data appears) but edges don’t automatically highlight or anything. If you need such advanced interaction, you’d likely use Dash Cytoscape or another approach.
Performance: For ~2k nodes, ~several k edges, performance is decent. If you stick to standard Scatter (SVG) and try to draw thousands of points, it might struggle; using Scattergl (WebGL) can drastically improve that, at the expense of some hover detail. Edges drawn as a single trace are efficient, but a lot of edges can still slow down rendering and increase HTML size. It’s advisable to keep edges simpler (no hover on edges, and a single color). The memory footprint in the browser for a few thousand points/segments is fine (likely a few MB of data). The initial rendering might be a second or few seconds. If performance is not adequate, one can try reducing detail (e.g., do not enable point selection if not needed, or reduce point size). On Windows, using Chrome or Firefox typically yields good results with Plotly’s canvas. Internet Explorer (legacy) might not perform well, but Edge (Chromium-based) is fine. Another performance tip: If the graph is static (not updating), you could use Plotly’s pure HTML embed which is static content and relatively lightweight after initial load. But if pushing the limits, consider a specialized tool like cytoscape.js which is built for networks. At 2k nodes, though, we are within what Plotly can handle.
Compatibility: Completely works on Windows. No system dependencies; just pip install plotly. In notebooks, no need for extensions nowadays (Plotly works via the _Plotly mimetype or you can use plotly.io.renderers.default = 'notebook' or 'iframe' depending on environment). In JupyterLab, an extension used to be required but now with Kaleido it might not be necessary for just output (Plotly now uses a simpler approach to showing figures). In any case, it’s widely used on Windows. The MIT license is also friendly for any use.
License: MIT (Plotly.py and Plotly.js are MIT licensed). Dash (the framework) is also MIT. No issue using in open or commercial projects.
Example: Plotting a NetworkX graph with Plotly:
import networkx as nx
import plotly.graph_objects as go
# Create a simple graph for example
G = nx.star_graph(n=10) # star graph with 10 peripheral nodes around 0
pos = nx.spring_layout(G, seed=42) # get positions via NetworkX layout
# Extract node coordinates and text for hover
node_x = []; node_y = []; node_text = []
for node, (x,y) in pos.items():
node_x.append(x); node_y.append(y)
node_text.append(f"Node {node}") # hover text
# Extract edge coordinates
edge_x = []; edge_y = []
for u,v in G.edges():
x0, y0 = pos[u]; x1, y1 = pos[v]
edge_x += [x0, x1, None] # None to break the line
edge_y += [y0, y1, None]
# Create edge trace
edge_trace = go.Scatter(x=edge_x, y=edge_y,
line=dict(width=1, color='#888'),
hoverinfo='none',
mode='lines')
# Create node trace
node_trace = go.Scatter(x=node_x, y=node_y,
mode='markers',
marker=dict(size=10, color='SkyBlue'),
text=node_text,
hoverinfo='text')
fig = go.Figure(data=[edge_trace, node_trace],
layout=go.Layout(title="Network Graph",
showlegend=False,
xaxis=dict(showgrid=False, zeroline=False),
yaxis=dict(showgrid=False, zeroline=False)))
fig.show()
Running this will produce an interactive Plotly figure of a star graph. Each node is a blue marker, and edges are gray lines. Hovering over a node shows e.g. “Node 3”. We explicitly turned off hover for edges for cleanliness. In this simple case, the layout is a spring layout. For a larger graph, you’d do the same but with more nodes/edges appended to the lists. This code demonstrates the general approach for Plotly: gather coordinate lists, create edge traces (with None separators), and node traces with attributes. If your graph has an attribute like community, you could create a color list for each node accordingly (e.g., assign a color based on community and set marker=dict(color=color_list, colorscale=...)). Or if nodes have weights, you might map that to marker.size. Because we used go.Scatter, if the number of nodes was big, switching to go.Scattergl (just replace Scatter with Scattergl) would improve performance. The figure layout disables axis lines and grid (since a network doesn’t need x/y axes). The result is an interactive network plot embedded in the notebook or browser, where you can zoom into the star center or see each node’s label on hover. This approach scales to larger graphs; you just have larger lists. For 2k nodes, you’d likely want to also consider color-coding or sizing to convey some info due to the sheer number of nodes – but Plotly can handle the drawing part as shown.
Overview: Cytoscape is a well-known open-source software for network analysis and visualization, primarily as a standalone application. However, there are Python integrations that bring Cytoscape’s visualization power to Python. Specifically, ipycytoscape is a Jupyter widget wrapping the Cytoscape.js library, and Dash Cytoscape is a component for Plotly Dash that also wraps Cytoscape.js. Both allow interactive network visualization in the browser with Cytoscape.js, which is a high-performance graph library (MIT licensed) widely used in bioinformatics and other fields. Cytoscape.js can handle quite large graphs (several thousand elements) with efficient rendering and supports a variety of layouts and interactions. The Python wrappers enable using this in notebooks or web apps. They are open-source (ipycytoscape is BSD-3-Clause, Dash Cytoscape is MIT).
Strengths: Rich interactivity and features thanks to Cytoscape.js. Cytoscape.js supports panning, zooming, node dragging, selectable nodes, hover styles, and even custom user events. It has a large array of built-in layouts (force-directed, circular, grid, breadthfirst (tree), concentric, etc.) that can be run in the browser. This means you can compute a layout client-side, which is unique compared to Bokeh/Plotly (though similar to vis.js/PyVis). The performance of Cytoscape.js is known to be quite good up to many thousands of nodes: developers mention ~8,000–10,000 elements can be handled in a browser if tuned. For 2,000 nodes, it’s well within comfortable range. Cytoscape.js also has a lot of styling options: you can style nodes and edges via a CSS-like approach (setting shapes, colors, sizes, border, transparency, etc.). ipycytoscape exposes a Pythonic API to set these, or you can directly supply Cytoscape.js style JSON. Another big strength is integration in notebooks (ipycytoscape) and in web apps (Dash Cytoscape). If you are in Jupyter, ipycytoscape is straightforward: you create a widget in Python (for example, from a NetworkX graph or from JSON data) and display it; the result is an interactive canvas right in the notebook. Since it’s a true Jupyter widget, it can also be part of interactive workflows (e.g., you could sync selections with Python state, though that may need some custom callbacks). In Dash, Dash Cytoscape lets you create interactive web dashboards where the network can be the central view, and you can have controls (sliders, dropdowns) to filter or recolor the network dynamically (with Python callbacks). This is powerful for building custom network analysis GUIs. Layouts: Cytoscape.js provides a variety of algorithms – e.g., cose (force-directed), cola (constraint-based, if extension included), concentric (like radial based on a score), breadthfirst (for trees or DAGs), grid (simple grid), circle. These can be run on the client side by just specifying which one to use and some parameters. This means you can try different layouts quickly. Cytoscape.js also allows animation of layouts (which can be fun for small graphs, though for 2k nodes you might keep animations off for speed). Styling: Node attributes can directly map to visuals using style rules. For example, you can say “if node.degree > 5, color it red” or use continuous mapping for a numeric attribute to a color gradient. This echoes a lot of Cytoscape (desktop) functionality. ipycytoscape and Dash Cytoscape allow specifying these style dictionaries in Python. Another feature: Cytoscape.js supports extension plugins (like for context menus, or special layouts), though using those in the Python context may require custom integration. In terms of visual fidelity, Cytoscape.js uses Canvas/WebGL and produces smooth visuals. It’s particularly good for networks because that’s its sole purpose. Also, selection of multiple nodes, dragging a selection box, etc., are built-in interactions. On Windows, since this is browser-based, it runs without problems. The libraries are actively maintained. License-wise, both the core and the wrappers are permissive.
Weaknesses: Using these tools can be slightly more complex than PyVis for a quick plot. ipycytoscape requires a Jupyter environment (it won’t work in a plain script as it needs the Jupyter widget infrastructure). Dash Cytoscape requires setting up a Dash app – which is more involved if you just want a one-off visualization (you’d write a small Flask-like app with callbacks). So for quick usage, it’s not as trivial as calling plot(); it’s more suited for interactive sessions or building applications. Another limitation: if you want to output a static image, Cytoscape.js (and thus ipycytoscape) does not have a built-in image exporter accessible via Python (though Cytoscape.js has a utility to output PNG from the client side, it's not directly exposed in ipycytoscape at the moment). That means these tools are mainly for interactive use, not for generating figures for a paper (unless you screenshot or otherwise grab the image). Additionally, while Cytoscape.js can handle a few thousand elements, if you push it to extremes (like >10k), you will also face performance issues (though possibly a bit later than with less optimized libraries). Another subtle point: ipycytoscape’s development is ongoing, and one might encounter some minor bugs or limitations in the API. For Dash Cytoscape, you need to know Dash, which adds learning overhead. In terms of functionality, Cytoscape.js doesn’t natively do heavy analytics – you’d still compute things like centralities in Python (NetworkX/igraph) and then pass the results to Cytoscape for visualization (just as with other libraries). So it’s primarily a visualization and interaction tool.
Suitability for 2k Nodes: Excellent. This is arguably one of the scenarios Cytoscape.js was built for (medium-to-large networks in a browser). Many use-cases, especially in biology, involve networks of a couple thousand nodes, and Cytoscape.js is frequently used to visualize those in web pages and tools. You should be able to load a 2,500 node, 5,000+ edge network into ipycytoscape or Dash Cytoscape and have it be interactive. Some care might be needed in terms of initial layout (force-directed on 2500 nodes will take some time to settle; you might see an initial lag while it computes – you could use a faster layout like concentric or a precomputed layout to avoid that). Once laid out, panning and zooming are fluid. Dragging a single node in a 2k graph will cause a re-render of edges, which is still fine if not too many edges – if a node has hundreds of edges, dragging it will update those edges in real-time, which might be slightly laggy but usually manageable. Cytoscape.js also can do incremental rendering (it might not draw all labels if they’d overlap too much until you zoom in, IIRC, though I’m not 100% sure if that’s automatic or needs configuration). In general, 2k elements is considered “medium” in Cytoscape.js terms and is well-supported. As evidence, the Cytoscape.js team mentions performance testing up to around 10k elements where it starts to degrade. So 2k is safe. If you find it slow with one layout, try another or disable certain stylistic effects (like complex gradients or shadows). But by default it should work smoothly. The only environment it wouldn’t work in is non-Jupyter (for ipycytoscape) – but that’s not a performance issue, just context.
Attributes & Layouts: Both ipycytoscape and Dash Cytoscape allow you to set the graph data (nodes and edges with attributes) and a style specification. For ipycytoscape, you can add nodes via widget.graph.add_node(...) with data (like an id and any other fields), or you can load from a NetworkX graph directly (widget.graph.add_graph(nx_graph)). When converting from NetworkX, typically it picks up node attributes and adds them as data. Then you can define CSS-like styles: for example, widget.set_style([{'selector': 'node[label = "Person"]', 'style': {'background-color': 'blue'}}]) to style nodes with a certain attribute. Or more generally, you can do continuous mappings: there's a concept of styles in Cytoscape.js that can map a data attribute to a visual property on a scale. In Dash Cytoscape, you provide a stylesheet list and elements list in the layout of the Dash app. The stylesheet can contain selectors like 'node', 'edge' for general styling, or by classes or data attributes. Attributes are referred to as data[...] in styles. For instance, if each node has a group attribute, you might have a style rule for each group to color them differently. Layouts in Cytoscape.js are invoked by specifying the layout name and options. In ipycytoscape, you might do widget.set_layout(name='cose') or assign widget.layout = {'name': 'circle'} for example. In Dash, you set 'layout': {'name': 'breadthfirst', 'circle': False, ...} in the component’s props. Cytoscape.js will then compute that layout in the browser. If you already have coordinates from another source, you can use the preset layout, which uses positions provided in the node data (so you can feed x,y into each node’s data and use preset). This is useful if you computed a specialized layout in Python. In general, Cytoscape.js covers most layout needs; for 2k nodes, cose (Compound Spring Embedder, a force-directed algo) or fcose (a faster version if included) would distribute them, or use concentric if you have a centrality measure to visualize. There’s also dagre layout for directed acyclic graphs (like Graphviz’s hierarchical). The support for attributes in visualization is quite advanced: not only colors and sizes, but also shapes (e.g. triangles, rectangles, hexagons for nodes), border styles, etc. Edges can be styled (solid or dashed lines, arrows at source/target/both ends for directed edges, curved or straight, etc.). Cytoscape.js will automatically curve edges if there are multiple edges between the same two nodes to separate them. It’s one of the few that handle parallel edges nicely. So for multi-graphs, Cytoscape.js is great. Labels: each node can have a label (usually the node’s id or a data field), and you can style label font, size, color. Edge labels can also be shown (though showing all edge labels in a 2k graph might clutter). You have control over when labels appear (e.g., show labels only for certain nodes or on hover via events). Not all of that might be trivial via ipycytoscape’s API, but since it closely mirrors Cytoscape.js, advanced users can manage it.
Visual Output: Both ipycytoscape and Dash Cytoscape produce an interactive graph embedded in the Jupyter notebook or web app, respectively. In a Jupyter notebook, the ipycytoscape widget looks like a live diagram: you can do everything you’d expect – zoom (mouse scroll), pan (drag background), select (click or drag-select multiple nodes), and if you enabled dragging, move nodes. You can configure whether dragging changes just that node or the whole component of nodes. By default, it typically allows moving nodes (which is great to manually adjust a layout or examine connections). ipycytoscape can also tie into Python for events. For example, you can have a callback when a node is selected (there’s some support to get the selection). This could allow interactive analysis (like click a node to display its details in another cell). Dash Cytoscape, being part of a Dash app, can trigger callbacks in Python when a node or edge is clicked or selected, or when the graph is loaded. This is extremely powerful for building interactive analytics dashboards (for instance, clicking a node could update a separate panel of information about that node). Thus, Cytoscape components excel in interactive data exploration beyond just looking at the picture. In terms of quality, the rendered view is canvas-based (vector-ish but ultimately raster drawn on canvas). It’s optimized for screen, not for printing. If you needed a static image, you’d likely use a separate route (the desktop Cytoscape application or export functions, or switch to a static library). But for on-screen, it’s crisp and can be styled attractively. If needed, you can manually call widget.graph.data to get the data and use it elsewhere. Dash Cytoscape’s output is a component on a webpage, which can be styled with CSS too (for the container). Both share Cytoscape.js’s core, so interactions are similar.
Performance: As noted, Cytoscape.js is high-performance for this domain. 2k nodes is fine, even with several style rules and a complex layout. If using an animated layout (like the force-directed ones that animate while stabilizing), you might see the graph moving for a few seconds before settling; this is normal. It’s possible to turn off animation for instant layout if preferred (speeds it up). The responsiveness while interacting should remain good. The key metric often cited: ~8-10k elements is where it becomes less smooth, which is above our range. Also, Cytoscape.js handles incremental drawing and culling intelligently; for example, if you zoom out very far, it might not draw every label to reduce DOM load. It uses requestAnimationFrame for efficient redrawing during interaction. The memory footprint for 2k nodes is fine (lightweight data structures in JS). So overall, performance is one of the selling points. If you did have 50k nodes, then no – but medium-size networks are in the sweet spot.
Compatibility: ipycytoscape requires Jupyter Notebook or JupyterLab. It has to be installed (pip install ipycytoscape) and enabled as a widget (with JupyterLab you might need jupyter labextension if using older versions, but newer JupyterLab 3+ can pick it up as a prebuilt extension). On classic Notebook it should work after installation. On Windows, there’s no special step beyond that. Dash Cytoscape is just a pip install (pip install dash-cytoscape) and use within a Dash app; it will work on Windows as long as you can run the Dash (Flask) server. The underlying Cytoscape.js is pure JS and supports all modern browsers. Both ipycytoscape and Dash Cytoscape are actively maintained and have community support. The licenses (BSD for ipycytoscape, MIT for dash-cytoscape) are permissive. The only scenario where these aren’t convenient is if you’re not using a Jupyter or Dash environment – e.g., if you want to just generate an image in a backend script with no user interface, these aren’t the right tools. But for interactive use cases, they are great on Windows or any OS.
License: Cytoscape.js core is MIT. ipycytoscape is BSD-3-Clause, Dash Cytoscape is MIT (as part of Dash). All open-source and free to use.
Example (ipycytoscape in Jupyter):
import networkx as nx
from ipycytoscape import CytoscapeWidget
# Create a NetworkX graph (for example, a cycle with a chord)
G = nx.cycle_graph(5)
G.add_edge(0, 2) # add an extra chord across the cycle
# Add a categorical attribute for demo
for i in G.nodes():
G.nodes[i]['group'] = 'red' if i % 2 == 0 else 'blue'
cy_widget = CytoscapeWidget()
cy_widget.graph.add_graph_from_networkx(G, node_attr=['group'])
# Set a layout (e.g., circle layout)
cy_widget.set_layout(name='circle')
# Style nodes by the 'group' attribute
cy_widget.set_style([{
'selector': 'node[group = "red"]', 'style': {'background-color': 'red'}
},{
'selector': 'node[group = "blue"]', 'style': {'background-color': 'blue'}
},{
'selector': 'edge', 'style': {'line-color': '#CCCCCC','curve-style': 'bezier','target-arrow-shape': 'triangle'}
}])
cy_widget
When executed in a Jupyter notebook, this will display an interactive Cytoscape graph widget. The graph is a 5-node cycle with one extra edge (0-2). We colored nodes by a 'group' attribute (even-indexed nodes red, odd blue). We chose the 'circle' layout to place nodes in a circle. We also styled all edges as light gray with a curved style and a triangle arrow at the target (to indicate direction, though this graph is undirected so arrow is just symbolic). The output is a circular network with alternating red and blue nodes. You can drag nodes, zoom, etc. In a larger graph scenario, you could use 'name': 'cose' in set_layout for a force-directed placement or 'name': 'breadthfirst' for a hierarchical layout if your data is a tree. The style selectors can use any node data (here we used the attribute group). For instance, if your graph had a numerical attribute 'score', you could do a continuous color mapping by generating a palette in Python and assigning each node a color via that attribute (or by Cytoscape.js’s own mapping functions if exposed). The code above shows the Python API – behind the scenes, it’s sending JSON to the browser. Dash Cytoscape would have a similar JSON specification in the layout of a Dash app, but ipycytoscape allows you to remain in the notebook context. This example is small, but if G had 2000 nodes, we would still do add_graph_from_networkx and it would send that to the widget. You might not want to print the widget repr because that’s huge, but just displaying it would show the visualization. In practice, you might limit how much data you attach to each node/edge to keep it responsive. ipycytoscape and Dash Cytoscape provide a way to harness Cytoscape.js’s capabilities within Python workflows, making them very powerful for medium-sized graph visualization and interaction.
Overview: graph-tool is a high-performance graph analysis library written in C++ with a Python API. It’s known for being extremely fast and memory-efficient, and it also includes some visualization functionality. Graph-tool can produce static visualizations (using Cairo and matplotlib for output) and even has an interactive mode using GTK. It supports attributes and many algorithms. However, it is a more niche choice for visualization because it is harder to install on Windows (and in general) and the primary focus is analysis. It’s licensed under LGPL v3.
Strengths: Incredibly efficient for graph operations – capable of handling very large graphs (100k+ nodes) which is beyond our “medium” scope, but worth noting. It has built-in support for common layouts (it can call Graphviz internally for layout or use its own). Graph-tool’s drawing module can output to screen or to file. It can draw vertices with different shapes/colors and edges with different styles. One unique aspect: graph-tool can open an interactive GTK window with the graph (if compiled with support) – you call graph_draw(g) without an output file, it launches a simple interactive viewer where you can zoom and pan. It’s not as feature-rich as web-based interactivity... It's not as feature-rich as web-based interactivity (no in-browser dragging or fancy hover, just a basic GUI). Graph-tool can also export visualizations to formats like PDF, PNG, SVG via Cairo.
Weaknesses: The biggest issue for our context: Windows compatibility. Graph-tool is infamously difficult to install on Windows (no official Windows build). Users often resort to Linux environments or use Docker/WSL if they want graph-tool. In fact, on Windows it’s generally recommended to use python-igraph instead, since “graph-tool is not working on Windows. The igraph package has all you need.”. This alone often rules out graph-tool for Windows-based workflows. Additionally, graph-tool’s visualization capabilities, while present, are not as polished or convenient as those in other libraries discussed. Setting up an interactive GTK window may require an X11 environment even on Windows (complicating matters), and the static plotting, though high-quality, requires understanding graph-tool’s API (which is less documented for drawing). Also, graph-tool’s license is LGPL, which is open-source but slightly restrictive if you planned to embed it in proprietary software.
Suitability for 2k Nodes: Technically excellent in terms of performance – graph-tool could easily handle and layout 2,500 nodes (it could handle orders of magnitude more). But practically, given the installation hurdles on Windows, you might not be able to use it at all in that environment. If one did have it set up (say on Linux), it would produce static or GTK-interactive visuals relatively quickly, and it leverages algorithms similar to or faster than igraph’s. For example, you could call its sfdp_layout (using Graphviz internally for layout) for a large graph and then graph_draw. So performance and scalability are top-notch; usability on Windows is the problem.
Support for Attributes & Layouts: Graph-tool supports vertex and edge “property maps” (attributes) and you can use these to define colors, sizes, etc., in the drawing. It has its own layout algorithms (and can interface with Graphviz’s algorithms too). So you have plenty of layout options. The styling can be done via parameters in graph_draw (e.g., pass a property map for vertex fill color or text). However, the API is less commonly used, so you might need to refer to documentation for specifics.
Visual Output: Largely static (unless using the aforementioned GTK live window). The static output is good quality (anti-aliased via Cairo). You can also save animations of graph layouts if needed, but that’s a specialized use. There’s no built-in web interactive output. Graph-tool is more for analysis; visualization is a secondary feature.
Compatibility: Not very Windows-friendly. If you are on Windows, you likely cannot easily install it (there are some unofficial conda packages or Docker images, but those are advanced solutions). On Linux or Mac, installation is easier (though still heavier than pure Python libraries). Given the user’s focus on Windows/Jupyter, graph-tool is generally not a first choice.
License: LGPL v3. It’s open-source, but if you were distributing software, you’d need to comply with LGPL (which is not as permissive as MIT/BSD). For just using it personally, that’s fine.
Example: (Omitted due to the complexity of setup) – If one had graph-tool available, an example usage would be:
from graph_tool.all import Graph, graph_draw, sfdp_layout
g = Graph(directed=False)
vlist = g.add_vertex(5)
g.add_edge(vlist[0], vlist[1]); g.add_edge(vlist[0], vlist[2])
g.add_edge(vlist[1], vlist[2]); g.add_edge(vlist[2], vlist[3])
pos = sfdp_layout(g) # force-directed layout
graph_draw(g, pos=pos, output_size=(400,400), vertex_fill_color="skyblue", output="graph.png")
This would create a simple graph and draw it to graph.png. However, given the caveats above, most users on Windows would opt for other libraries.
Summary of Libraries: All the above libraries are open-source and can visualize a graph of ~2,000 nodes, but they have different strengths:
Graphviz – Best for high-quality static images and multiple layout options (ideal for printed diagrams or when you need a very specific layout like hierarchical). Not interactive; moderate performance on medium graphs (use appropriate engine). Windows-compatible (with install). License: Eclipse Public (open-source).
NetworkX – Great for graph analysis and quick prototyping. Offers basic drawing but not optimized for large or interactive viz. Use it in combination with others (e.g., NetworkX + PyVis or + Bokeh). Pure Python, easy on Windows. License: BSD (very permissive).
igraph (Python) – Best for performance when analyzing larger graphs and producing a quick static visualization. Can handle 2k+ nodes with ease. Static outputs via Cairo are nice; no built-in interactivity. Windows wheels available. License: GPL (open-source, but restrictive for redistribution).
PyVis (vis.js) – Great for interactive exploration directly in notebooks or HTML. Easiest way to get an interactive graph with minimal code. Handles a few thousand nodes smoothly in-browser. Perfect for sharing an HTML visualization. License: BSD for PyVis (vis.js is MIT).
Bokeh – Good for integrating network viz into interactive dashboards or when you want to link graphs with other plots. Provides interactivity (zoom/pan/hover) and customization. Requires a bit more code to set up styling. Suitable for medium graphs (thousands of nodes). License: BSD.
Plotly – Ideal for polished interactive visuals and the ability to embed in reports or notebooks. Especially useful if you might need 3D visualization or easy export to static images. Need to manually prepare data for edges/nodes. Works for medium-size with WebGL acceleration. License: MIT.
Cytoscape (ipycytoscape/Dash) – Best for rich interaction and web app integration. If you are in Jupyter, ipycytoscape gives a powerful network widget with client-side layouts and styling. If building a Python web app, Dash Cytoscape offers extensive interactive control. Handles 2k nodes excellently, as it’s designed for larger graphs. More setup than PyVis, but more flexible interactivity. License: BSD (ipycytoscape) / MIT (Dash Cytoscape, Cytoscape.js).
Graph-tool – High-performance analysis and decent static viz if you can use it, but not friendly for Windows. Consider only if working in a Linux environment or if performance is a bigger concern than ease of installation/interaction. License: LGPL.
Choosing the Right Tool: For most users on Windows wanting to visualize ~2k-node graphs, a good approach is:
Use NetworkX or igraph for constructing the graph and computing any properties (depending on performance needs), then
Use an interactive library like PyVis or ipycytoscape to explore the graph. PyVis is simpler to drop in a notebook for a quick interactive view. ipycytoscape is great if you want more control or to integrate with Jupyter interactive widgets.
If you need a static image for documentation, Graphviz is a top choice for a well-laid-out diagram (you can even export your NetworkX graph to DOT format and use Graphviz). igraph can also produce a quick static plot with reasonable quality directly in Python.
If you are creating a dashboard or report: Bokeh and Plotly are excellent. For example, Plotly if you want an interactive figure in a notebook that you can easily export as HTML or PNG. Bokeh if you plan to link multiple views or use its richer Python callback system (or you prefer its styling approach).
Keep an eye on graph size: ~2k nodes is fine for all these, but if your graphs creep larger (5k+ nodes), the interactive ones (PyVis, Cytoscape.js, Plotly) may start to strain. In such cases, consider simplifying the visualization (clustering nodes, or using Datashader with Bokeh for a rasterized view of extremely large networks).
Each library has a different “sweet spot.” In summary, PyVis offers the quickest route to an interactive graph, Graphviz yields the best automated layouts for static output, igraph offers performance for analysis with simple plotting, and Bokeh/Plotly/Cytoscape.js provide interactive and customizable experiences suited to different workflows. All are open-source with permissive licenses (except igraph/graph-tool which are copyleft). Depending on your specific needs (e.g., purely exploratory vs. presentation-quality output vs. building an app), you might even use a combination of these tools.
Сначала делаешь deep research какой-то темы в одной нейросети. Далее можно скопировать все результаты и отдать уже другой (нейросеть-аналитик). Она прочитает результаты, сделает итоговые выводы.
Можно ответ одной нейросети вставлять в другую для проверки.
Можно попросить нейросеть вставлять дебажные принты (debug prints) в код. Потом ей же отдавать результаты принтов, она быстро сообразит, что идет не так при запуске кода. Меня это два раза очень сильно спасало.
Можно попросить, чтобы нейросеть покритиковала твой промт и указала на противоречия. Часто в постановке задачи есть некорректные термины, слабые места. Для особо сложных задач можно отдельно проработать сам промт. А уже потом отдавать его для решения.
Иногда понимаешь, что проблема уже решена, но надо аккуратно написать итоговый python код. Вайб кодит другая нейросеть. Сообщаешь ей результаты решения проблемы и просишь написать код. Написания кода по готовому решению - уже задача попроще. Например, claude sonnet 3.7 с этим отлично справится.
Ниже некоторые нейросети и их особенности:
openai o1 pro - умная, аналитик. Может решать очень сложные многошаговые задачи. Есть режим deep research, продвинутый. Глубоко изучает тему. Это скорее академический research, а не поиск в гугл.
gemini 2.5 pro - похоже самая умная модель в мире на сегодня, делит это звания с o1 pro.
deepseek R1 - иногда можно попробовать. Сложные задачи. Рассуждающая модель. Сейчас редко использую, т.к. есть две выше. Плюс - она бесплатная.
grok 3 - хорошо объясняет сложные вещи. Приятный стиль ответов, легко читать. Отличный deep research режим, именно он часто заменяет мне гугл. Но особо сложные проблемы вред ли решит.
claude sonnet - отлично кодит.
perplexity, you.com, search.jina - неплохой deep research. Запускаю как заменители гугла.
ещё есть mistral, qwen, minimax, yandexgpt, gigachat и т.д. но пользуюсь редко
спойлер - сильно умные
Задача поиска неточных дубликатов в списке. Сложная, если формализовать её математически корректноInput:1. A Python list of strings (str). This is a directory of the company's materials. 2. The list size is 1000 elements.3. All strings are unique, with 1000 unique elements. 4. We are given a function that takes two strings and returns a similarity metric [0, 1]. This function works correctly. It is guaranteed that the function is commutative (the metric does not change when the arguments are swapped). No other properties are guaranteed.5. The threshold for the metric is set at 0.8. If the metric is higher, it means the strings are approximate duplicates. This could happen because the strings were written by humans, who could make typos. Business task: Remove all approximate duplicates from the list. Your task:1. Reformulate the business task to be mathematically precise. If the conditions are incomplete, assume what conditions would be logical in this situation. 2. Write Python code and explain the logic. The task should be solved mathematically precisely.
1. Reformulate the Business Task Mathematically
We have:
A set SS of n=1000n = 1000 strings, all distinct.
A similarity function
sim:S×S → [0,1]\text{sim}: S \times S \;\to\; [0,1]
which is commutative (i.e.\ sim(a,b)=sim(b,a)\text{sim}(a,b)=\text{sim}(b,a)) and returns a real number between 0 and 1.
A threshold θ=0.8\theta = 0.8.
If sim(a,b)>0.8\text{sim}(a,b) > 0.8, then aa and bb are considered approximate duplicates.
The business requirement is:
“Remove all approximate duplicates from the list.”
To translate this precisely into mathematics, we impose the condition that no two strings in the final subset should be approximate duplicates. Concretely, we want a subset
S′⊆S S' \subseteq S
such that for every distinct a,b∈S′a, b \in S',
sim(a,b) ≤ 0.8. \text{sim}(a, b) \;\le\; 0.8.
Depending on additional assumptions, there are two common interpretations:
Largest Independent Set Interpretation (General Graph):
Since only commutativity (sim(a,b)=sim(b,a)\text{sim}(a,b)=\text{sim}(b,a)) is guaranteed (but not transitivity), the natural model is an undirected graph G=(V,E)G=(V,E) where:
VV is the set of all strings (so ∣V∣=1000|V| = 1000).
An edge (a,b)∈E(a,b)\in E if and only if sim(a,b)>0.8\text{sim}(a,b) > 0.8.
Then, removing approximate duplicates means choosing a subset of vertices V′⊆VV'\subseteq V with no edges inside V′V'. In graph terms, V′V' must be an independent set (also called a stable set).
If the business wants us to “keep as many strings as possible but remove duplicates,” we want a maximum-cardinality independent set. This is an NP-hard problem in the general case.
A common practical approach is a greedy or approximate algorithm.
Equivalence-Relation Interpretation (If We Assume Transitivity):
In many real-world “duplicate detection” tasks, one often assumes that approximate-duplicate relations are transitive (“if AA is a duplicate of BB and BB is a duplicate of CC, then AA is a duplicate of CC”). In that case, “sim(a,b)>0.8\text{sim}(a,b) > 0.8” defines an equivalence relation (reflexive, symmetric, transitive), so we can partition SS into equivalence classes (often called clusters). Removing duplicates then means:
For each equivalence class, pick exactly one representative string to keep, and discard the rest.
Because the problem states “No other properties are guaranteed” besides commutativity, the strictly correct interpretation is the independent set approach. However, if we (for simplicity) assume transitivity (very common in approximate-string-deduplication tasks), we can treat duplicates as connected components (equivalence classes).
Below we give Python code for both approaches:
Key idea:
Build an undirected graph GG with edges for every pair whose similarity is above 0.8.
Then run a simple greedy algorithm: iterate over nodes in some order, and include a node in our “kept set” only if it does not conflict (i.e.\ has no edge) with those we have already kept.
Complexity:
We must compare each pair of strings (up to 1000×999/2≈500,0001000 \times 999 / 2 \approx 500{,}000 pairs).
For each new string in the greedy pass, we check conflicts with those already chosen.
Although greedy does not guarantee the maximum independent set in all cases, it does produce a valid subset with no edges among them, which satisfies the requirement “no approximate duplicates remain.”
def remove_duplicates_greedy(strings, similarity_func, threshold=0.8):
"""
Returns a subset of 'strings' such that
no two strings in the result are approximate duplicates.
This uses a greedy strategy (not guaranteed maximum, but valid).
:param strings: list of unique strings
:param similarity_func: function sim(s1, s2) -> float
:param threshold: float, default=0.8
:return: list of strings with no approximate duplicates
"""
chosen = []
for s in strings:
# Check if 's' conflicts with any 'already chosen' string
conflict_found = False
for c in chosen:
if similarity_func(s, c) > threshold:
conflict_found = True
break
# If no conflict, include s in the chosen subset
if not conflict_found:
chosen.append(s)
return chosen
# Example usage (pseudo-code, similarity_func assumed pre-defined):
# final_list = remove_duplicates_greedy(original_list, similarity_func, 0.8)
Explanation:
We initialize an empty chosen list.
We iterate through each string s.
For each s, we check whether it is “too similar” (>0.8> 0.8) to anything we have already chosen.
If it is, we skip s. If it is not, we add s to chosen.
The result chosen forms an “independent set” in the approximate-duplicate graph.
This guarantees that no two strings in chosen have sim>0.8\text{sim} > 0.8. However, it might not be the largest such set. In practice, with 1000 strings, this is a straightforward solution and often sufficient.
Key idea:
Assume that if sim(a,b)>0.8\text{sim}(a,b)>0.8 and sim(b,c)>0.8\text{sim}(b,c)>0.8, then also sim(a,c)>0.8\text{sim}(a,c)>0.8.
This makes “sim(x,y)>0.8\text{sim}(x,y) > 0.8” into an equivalence relation.
We then find connected components (each component is an equivalence class).
From each component, pick exactly one string (for instance, the first string we encounter) and discard the rest.
Complexity:
Again, we do O(n2)O(n^2) similarity checks to build the adjacency list.
Then a Depth-First Search (DFS) or Breadth-First Search (BFS) to extract connected components.
from collections import deque
def remove_duplicates_by_components(strings, similarity_func, threshold=0.8):
"""
Returns a list of representative strings, one from each
connected component in the 'similarity > threshold' graph.
Assumes transitivity of 'similarity > threshold', i.e.
each connected component forms an equivalence class.
"""
n = len(strings)
# Build adjacency lists: O(n^2) comparisons
adjacency = [[] for _ in range(n)]
for i in range(n):
for j in range(i+1, n):
if similarity_func(strings[i], strings[j]) > threshold:
adjacency[i].append(j)
adjacency[j].append(i)
visited = [False]*n
representatives = []
# BFS or DFS to find connected components
for start_idx in range(n):
if not visited[start_idx]:
# start a new component from start_idx
queue = deque([start_idx])
visited[start_idx] = True
while queue:
current = queue.popleft()
for neighbor in adjacency[current]:
if not visited[neighbor]:
visited[neighbor] = True
queue.append(neighbor)
# 'start_idx' is the representative for this entire component
representatives.append(strings[start_idx])
return representatives
# Example usage:
# final_list = remove_duplicates_by_components(original_list, similarity_func, 0.8)
Explanation:
We create an adjacency list, linking i and j if sim(strings[i],strings[j])>0.8\text{sim}(\text{strings}[i], \text{strings}[j]) > 0.8.
We maintain a list visited to keep track of which indices have been grouped already.
We iterate over all indices; if one is not visited, we perform a BFS/DFS from that node, marking all reachable nodes (the entire connected component) as visited.
We pick the “start index” of that BFS/DFS as the representative for that component (i.e., we keep exactly one string from the entire connected component).
The final list representatives will have no approximate duplicates, because any two strings in the same equivalence class end up in the same connected component, and we keep exactly one string per component.
If the similarity “> 0.8” lacks transitivity, one can still remove approximate duplicates by ensuring no two kept items exceed 0.8. That requirement translates to finding an independent set in a general graph.
For 1000 strings, O(n2)≈106O(n^2)\approx 10^6 similarity checks is often feasible in practice, but the maximum independent set problem is NP-hard. Hence, a greedy approach is standard.
If (in a more realistic scenario) we assume near-duplicate detection is transitive, the connected-components approach is straightforward and ensures that we remove all “approximate duplicates” by grouping them into clusters.
Нейросеть начала с того, что переформулировала задачу в корректных математических терминах. Порассуждала про два варианта решения 1) maximum independent set (MIS) 2) graph connected components. Ясно дала понять, что промт явно намекает именно на MIS. На всякий случай на питоне написала оба варианта. Эталонный ответ... Единственное нарекание - ответ суховат, без юмора и смайликов =) От людей я ни разу такого ответа не слышал.
Скорость копирования-вставки текста, слепой набор на клавиатуре на русской и английском - это всё важные навыки сейчас. Да, они не являются фундаментальными, но практическая польза огромна.
Еще я бы отметил способность быстро формулировать задачу в четких терминах, это уже навык сложнее.
Интересно, что промты можно не только писать, но и "наговаривать", как голосовые в телеграм. Есть ряд сервисов (Wispr Flow и другие) на основе знаменитого whisper, которые помогают это сделать удобно. Т.е. прямо говоришь и там где курсор вставляется текст.
Качество текста сильно падает, но нейросети настолько мощные, что всё понимают и прощают. Часто в промтах куча ошибок, включая логические неточности и противоречия. Но в целом промт корректный и они способны его разобрать и додумать до полноценной задачи. А потом еще и решить задачу.
Промт надиктован мной. Но сам я бы в нем ничего не понял. Для нейросети нормальноWe have a Python list of 1000 strings and I have TFIDEF vectors. scikit-learn tfi/def. Sparse vectors based on n-gram calculations. They are P2 normalized. That's pretty standard TFIDef implementation And after that I want to make a complete graph on 1000 nodes. So, it's our vectors, 1000 vectors. And I want to calculate pairwise distance. After that I get the graph with the weights on the edges. The weights on the edges are the similarity score. For example, dot_product but in our case since vectors are P2 normalized it's a cosine similarity So cosine similarity ranges from minus one to one And I want after that I want to run the Community Detection algorithm. For example, Python library network X Lovian Community Detection modularity based algorithm So The question is: do I need to scale shift or map the weights of the edges to another range? For example, exponentiation, log logarithm or maybe inverse or some other function so that the Lovian algorithm will work better.
Когда задача крайне сложная, можно поправить ключевые моменты (выделить логические шаги, проверить корректность указания входа/выхода). Качество вырастает заметно. Но и времени уйдет больше.
Промт надиктован, потом немного отформатирован и поправленCPU RAM GPU
we do have cpu and ram in in general very powerful but the whole data set couldn't be fitted into the ram we use python we use linux we do have gpu 24 gigabyte of gpu. 32 gigabyte of ram.
INPUT
As an input we have a Python list with 20 millions of strings. It's some names of objects, alphabet includes lower-upper Russian-English letters, punctuation, space-like digits.
STEP 1
The first step is to perform TF-ADF. We need vectors. We will be using 2 gram to keep the dimensionality of the vector low. Maybe we should use chunking approach: count vectorizer plus manual IDF calculations.
as a result we get numpy array 20 millions the first dimension the second dimension is the dimensionality of the vector consider the appropriate data type
STEP 2
Then we should train FAISS library index. We should consider batching, batch approach, file storage, product quantization and GPU usage.
STEP 3
After that we should perform approximate nearest neighbors in FAISS. We need top 60 approximate nearest neighbors. Consider chunking chunk approach.
STEP 4
After that we need to filter the results maybe in the process of chunking So our approach is to for each object out of 20 millions, we need to take 20 nearest neighbors and it's guaranteed to take 20 and after that we should take the next nearest neighbors but strictly accordingly to the score Of course we start to take with the highest score and the upper bound is 60 so no object could have more than 60 nearest neighbors so we introduce the lower bound at least 20 and at most 60 the upper bound
STEP 5
as a result we should we should get the list of list of indexes indexing should be done in according to the initial list of 20 millions so it's in it's indexed like the input data so we need to get the final result in terms of the index for each element out of 20 millions we should find the nearest neighbors according to our approach at least 20 at most 60 and between we just take considering all 20 millions the highest scores
IMPORTANT DTYPES
Carefully think about the data types. Integer float, integer 32, float 16. What is appropriate data type at each step? What should be used? What risks can we have?
IMPORTANT RAM
Carefully consider the limitation of RAM, so in-memory storage, for example, Python in-memory storage. I carefully consider the limitation of one file storage, in-memory storage in PYTHON-RAM, the file storage, one file storage and other limitation of the space complexity of our algorithm. Maybe using memory mapping in NumPy.
FAISS LIMITATIONS
carefully consider the features and limitations of this library the possibility of file storage maybe product scalar quantization maybe gpu usage maybe some other techniques to reduce memory consumption or to speed up the process
Нейросети максимально эффективны в точных науках и отлично пишут код. Разложите вашу задачу на части и найдите то, что можно делегировать им в этих областях. Именно в этом сейчас задача человека - проработка архитектуры задачи.
Разложение задачи на части и нахождение ключевых моментов (а это обычно математика) - уникальный навык. Его надо развивать.
Вайб кодинг - отдельная интересная тема, мне понравился Cursor. Туда переходишь, когда общая логика решения уже ясна и надо перекладывать её в код (обычно целый репозиторий).
У вас есть сотрудник. Вы ставите ему задачу. Вот так и писать промт. Чаевые не надо обещать))
Ниже основные моменты:
Используйте правильные термины (если на вход дан directed acyclic graph, так и говорите - DAG/направленный ацикличный граф). Корректные термины - это моя "священная корова";
Чётко укажите формат входных данных и ответа (типы данных, размеры массивов и т.д.);
Сообщите все важные моменты, условия, ограничения (можно ли использовать другой язык программирования? есть ли ограничения на оперативную память? какие библиотеки можно использовать? надо ли предлагать другие алгоритмы решения задачи?). Так нейросеть не будет тратить усилия в неверном направлении;
Промт без воды. Только факты и четкие рекомендации по выполнению задачи. Можно числа. Если формулировки будут абстрактные, то и ответ будет такой же;
Сложный промт разделяем на блоки/части (например, можно выделить 5 шагов решения задачи и попросить реализовать их в коде);
Итого, чтобы написать качественный промт надо быть довольно хорошим специалистом в предметной области. В идеале надо знать ответ или хотя бы варианты ответов на этот вопрос. Это главное. Приходит с опытом, так что экспериментируйте.
Пример сложного промта (надиктован, без редактирования). Нейросеть всё поняла Можете вставить в нейросеть и убедиться, что ответ будет удивительно логичным Let's say we have a bipartite graph and there are 14 bipartite, 14 partition of a graph parts of this graph. So this graph doesn't have a self-load loop, doesn't have multi edges, it's undirected pretty ordinary standard graph with 14 parts like a bipartite graph.
so we need to calculate first of all we need to calculate the number of edges if this graph were complete be partita 14 parts graph this is just for the information
So the main task is to Determine the types of connected components and under the word types I I understand Our our personal classification. It's it's not just something scientific. It's our inner in-house classification of the uh connected components of this graph The first type the first type is One edge to nodes and of course a nodes in different parts of the graph like a be protected apart The second type is pretty similar when we have uh two parts and The edges only between two parts But in one part There are more than one than one node it's like a one to many relay relations in some sense That's the second type of the connected components. The third type is pretty similar but each of two parts Parts involving in the relations in the connected component uh has more than one node So it's like a many too many between two parts of the departure Parts graph so and the Fourth type of the components The connected components that Has more than two parts of the be parted a graph participating in the this connected component so and the fourth type Should be divided in the subtypes So the number of uh parts of the be parted a graph which are involved in the connected component so we um, the graph is pretty big it's extremely big it's like a million nodes and we need to implement The very efficient and effective Algorithm you use python Uh network x library To get the type and subtype of Connected components and just show them in the pretty way just printing some printing
Например, у openai o1 pro контекст - 200к токенов. Вся эта статья ~2к токенов. Можно вставить небольшую книжку в контекст и пообсуждать её. Также это позволяет вести длинный диалог в одном чате. У меня часто 5-7 уточнений последовательных.
Если есть возможность - пишите/говорите промты на английском. Качество вырастет. Ответы можно тоже на английском читать. Технический английский относительно простой, быстро выучивается.
Всё что похоже на простой текст (всё, что можно скопировать) - кандидат на вставку в нейросеть.
Примеры:
любые языки (русский, английский, китайский, древнегреческий);
языки программирования (python, javascript, VBA, power query, формулы эксель, assembler, xml, json и всё остальное);
html код сайтов;
таблицы (csv, markdown и подобное);
иерархии (обычно форматы отступом, xml, json, yaml, toml или markdown);
последовательности ходов в шахматы;
debug traceback в python;
database schema.
и т.д. и т.п.
С учетом того, что размер контекста большой, возникают интересные возможности накидать в нейросеть кучу всего. И далее наслаждаться синтезом и анализом информации.
Для меня, написать в облачную нейросеть = открыть информацию всему миру. Как запостить вконтакте. Поэтому пишем только нейтральную инфу. Обычно, для решения кодинговых задач и математики/статистики этого достаточно.
Теории минимум. Всё познается на практике. Сделайте самое простое - зайдите сейчас на сайт перплексити (тут) и спросите то, о чем так хотели узнать.
Я, например, всегда хотел узнать этоLes's consider distance square matrix N*N. We know that:
1. All distances are positive
2. Distance matrix is symmetric
3. Main diagonal is all zeros
4. Triangular rule is satisfied Question:
Сan we state that there exists Euclidian space so that we can find N points and preserve all distances equal to distance matrix?
First, let us restate the problem more explicitly:
Problem Statement. We have an N×NN \times N matrix D=(dij)D = (d_{ij}) satisfying the usual axioms of a metric:
dij≥0d_{ij} \ge 0 for all i,ji, j, and dii=0d_{ii} = 0.
dij=djid_{ij} = d_{ji} (symmetry).
dij>0d_{ij} > 0 for i≠ji \neq j (strict positivity).
dij≤dik+dkjd_{ij} \le d_{ik} + d_{kj} for all i,j,ki, j, k (triangle inequality).
Question: Does there always exist a Euclidean space Rm\mathbb{R}^m (for some mm) and points x1,…,xN∈Rmx_1, \dots, x_N \in \mathbb{R}^m such that
dij = ∥xi−xj∥,d_{ij} \;=\; \|x_i - x_j\|,
for all 1≤i,j≤N1 \le i, j \le N?
No, not every metric matrix can be realized as distances between points in some Euclidean space. A general metric (satisfying positivity, symmetry, and the triangle inequality) need not be a “Euclidean metric.” There is an additional requirement often referred to as the positive semi-definiteness of the associated Gram matrix (or equivalently the four-point condition or Cayley–Menger determinants being nonnegative) for a metric to come from actual points in Euclidean space.
To see why not all metrics are Euclidean, recall that a distance dijd_{ij} is Euclidean if there exist vectors xi∈Rmx_i \in \mathbb{R}^m such that
dij = ∥xi−xj∥for all i,j. d_{ij} \;=\; \|x_i - x_j\|\quad \text{for all } i,j.
Equivalently, one can consider the dot products of these vectors. Define the Gram matrix G=(gij)G = (g_{ij}) by
gij = ⟨xi, xj⟩. g_{ij} \;=\; \langle x_i, \, x_j \rangle.
Then it is known (via the usual relation ∥xi−xj∥2=gii−2 gij+gjj\|x_i - x_j\|^2 = g_{ii} - 2\,g_{ij} + g_{jj}) that this embedding is possible if and only if the induced matrix
Bij = −12(dij2−di12−dj12+d112) B_{ij} \;=\; -\tfrac12 \bigl(d_{ij}^2 - d_{i1}^2 - d_{j1}^2 + d_{11}^2\bigr)
is positive semi-definite (this follows from the classical “double-centering” approach to go from distances to dot products).
Hence, for a metric to be Euclidean, its distance matrix must pass a stronger test than just the triangle inequality: the associated Gram (or equivalent) matrix must be positive semi-definite. If it fails this test, there is no way to embed those points in any finite-dimensional (or even infinite-dimensional) Euclidean space while preserving all distances exactly.
A classic simple example to illustrate a non-Euclidean metric is the so-called “taxicab” or L1L^1 metric on R2\mathbb{R}^2. While L1L^1 on R2\mathbb{R}^2 is certainly a metric, it is not (for most configurations) representable by Euclidean distances in any dimension mm. In fact, any LpL^p norm for p≠2p \neq 2 will typically fail to be isometrically embeddable in an L2L^2 (Euclidean) space unless one considers very special cases (like collinear points).
Another common example is taking “shortest path distance” on a graph (the graph metric). In general, there is no reason for the shortest-path metric on an arbitrary graph to embed isometrically into a Euclidean space (it can embed in ℓ1\ell^1-type spaces with low distortion by certain theorems, but not necessarily in ℓ2\ell^2 exactly).
There are several known equivalent ways to check if a given finite metric {dij}\{d_{ij}\} is Euclidean:
Gram Matrix Criterion (Positive Semi-Definiteness). Construct from DD a candidate Gram matrix GG by the “double-centering” method:
Gij = −12(dij2−di12−dj12+d112).G_{ij} \;=\; -\tfrac{1}{2} \left(d_{ij}^2 - d_{i1}^2 - d_{j1}^2 + d_{11}^2\right).
Then GG must be positive semi-definite (all eigenvalues ≥0\ge 0).
4-Point Condition. A finite metric dd on NN points is Euclidean if and only if for every set of four distinct indices i,j,k,li, j, k, l, the so-called 4-point condition holds, which is a certain linear inequality involving the six distances between those four points. (It is sometimes referred to as a “parallelogram rule” or a “tetrahedron condition.”)
Cayley–Menger Determinants. For a set of NN points in Rm\mathbb{R}^m, certain determinants (the Cayley–Menger determinants) must be nonnegative. This test is commonly used in geometry to decide if a given set of distances can form a simplex in some Euclidean space.
If the distance matrix fails any of these conditions, it is not Euclidean.
No, we cannot. While any symmetric, positive, triangle-inequality-respecting matrix is indeed a metric, not every metric is a Euclidean metric. There is an additional requirement—often captured by positive semi-definiteness conditions on derived matrices—that is necessary and sufficient for the existence of an exact embedding into some Rm\mathbb{R}^m.
If a given metric dijd_{ij} does satisfy the Euclidean embedding conditions (e.g. passing the Gram matrix positive semi-definiteness test), then indeed there exists some finite dimension m≤N−1m \le N-1 and points x1,…,xN∈Rmx_1, \dots, x_N \in \mathbb{R}^m giving exactly those distances.
If it fails those conditions, no Euclidean embedding is possible.
Hence, merely having the properties (1)–(4) in your question is not sufficient to guarantee the existence of an isometric embedding in Euclidean space. One must check for the additional Euclidean-specific constraints.
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