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Как построить и развернуть ML-пайплайн в Яндекс Облаке. Практическое руководство

В новой статье CleverData мы расскажем о проектировании ML-пайплайна предсказания целевого действия с помощью Yandex Cloud. Пайплайн необходим для автоматического обмена данными с CDP CleverData Join - использования информации с платформы для обучения ML-моделей и формирования прогнозов поведения каждого пользователя. На примерах рассмотрим использование API сервисов Yandex Cloud, коснемся алгоритмов обработки данных и обучения ML-модели, а также расскажем о возникших проблемах. Под катом делимся кодом.

Источник

Что такое CDP и зачем нужны предиктивные атрибуты

Платформа управления клиентскими данными (Customer Data Platform) - это инструмент, помогающий компаниям собирать, анализировать и использовать информацию о своих клиентах. CDP объединяет данные из таких источников, как сайты, мобильные приложения, CRM-системы и т.п., чтобы сформировать полное представление о портрете клиента и истории его действий.

CDP CleverData Join содержит два основных типа данных: клиентские профили и события, привязанные к этим профилям. В состав профиля входят идентификаторы клиента и атрибуты, содержащие информацию о пользователе (его имя, демографические характеристики, предпочтения и многое другое). Атрибуты событий представляют собой информацию о конкретных действиях клиентов. Например, посещения страниц сайта, факты покупки товаров, реакции на маркетинговые кампании. Но CDP - это не только база данных. Это инструмент, который помогает делать полезные выводы о клиентах и повышать эффективность маркетинга.

Основная часть данных собирается из внешних систем, интегрированных с CDP. Однако при наличии такого массива данных возникает желание получить новую, предиктивную характеристику профиля, сформированную методом машинного обучения на собранных сведениях. Знать не то, что человек уже сделал, а предугадывать его следующие шаги.

В CDP предиктивные атрибуты, как правило, используются для прогнозирования поведения клиентов, определения их потребностей и предсказания вероятности совершения определенных действий. Например, для маркетологов может быть полезно иметь прогноз того, что клиент возьмет кредит или оформит подписку. Это можно вычислить при помощи ML-модели, обученной на исторических данных о поведении клиента. Предиктивные атрибуты играют важную роль в персонализации маркетинговых кампаний, улучшении обслуживания клиентов.

Конечно же, нужно понимать, что для моделирования предиктивных атрибутов требуется:

  • иметь качественные, структурированные данные для моделирования,

  • обеспечить достаточный объем таких данных,

  • обладать качественными алгоритмами предобработки и обучения.

Не менее важным вопросом является обслуживание моделей - их надо регулярно обновлять и дообучать на свежих данных, иначе качество прогнозирования будет неизбежно падать. Построению пайплайна, который обеспечивает автоматизированное взаимодействие с CDP, и посвящена эта статья.

MVP и его цели

Мы решили построить MVP пайплайна, реализующего передачу данных для обучения, само обучение и передачу предсказаний обратно в CDP CleverData Join, используя готовые инструменты, предоставляемые Yandex Cloud.

В качестве бизнес-задачи мы для себя определили предсказание вероятности совершения клиентом целевого действия на основании данных о переходах по страницам сайта - кликстриме. Это типовая задача бинарной классификации (классификация по определенным признакам в две группы) массива клиентов. Под целевым действием подразумевается посещение нужного нам URL (например, страницы оформления покупки или кредита). Поскольку кликстрим является цепочкой переходов пользователей по ссылкам, в качестве архитектуры модели была выбрана рекуррентная нейронная сеть (вид нейронных сетей, где связи между элементами образуют направленную последовательность).

Целью проекта стало построение полностью автоматизированного пайплайна, который приносил бы ценность заказчику в течение длительного времени. Для этого нам нужно было реализовать следующие цепочки операций.

  • Предобработка новых данных для обучения и инференса (непрерывной работы нейронной сети на устройствах конечного пользователя) и преобразование их из формата хранения в CDP в формат, требуемый для ML-модели.

  • Первичное обучение модели под задачу конкретного заказчика на кликстриме его клиентов.

  • Периодическое дообучение модели на новых данных, поступающих в CDP. Дообучение на новых данных крайне важно, поскольку с течением времени модель может потерять свою актуальность, а, значит, точность прогнозов значительно уменьшится.

  • Периодический инференс (обеспечение непрерывной работы нейронной сети на устройствах конечного пользователя) для клиентов с обновлениями в кликстриме и отгрузку результатов обратно в CDP.

Архитектура компонентов MVP в Yandex Cloud

Итак, нам потребовалось разработать и развернуть в Yandex Cloud сервисы, реализующие все необходимые для построения MVP цепочки операций. После анализа требований была предложена следующая архитектура решения:

Схема взаимодействия компонентов решения
Схема взаимодействия компонентов решения

На стороне CleverData Join находятся сервисы Model Manager, отвечающие за автоматизированное создание инфраструктуры под пайплайн в Yandex Cloud, и Data Processor, обеспечивающий периодическую первичную обработку новых данных и загрузку их в бакет S3. По сути Model Manager является Control Plane, который автоматизирует операции по развертыванию компонентов в Yandex Cloud при появлении потребности создать новый предиктивный атрибут. Остальные компоненты находятся в инфраструктуре Yandex Cloud.

  • В бакете Yandex Object Storage накапливаются данные, представляющие собой первично обработанный кликстрим. Там же должны располагаться артефакты и метаданные, полученные при обучении моделей, а также результаты инференса моделей.

  • В сервисе Yandex DataSphere автоматически создаётся проект, содержащий ноутбуки для обучения и инференса. При поступлении новых данных в Yandex Object Storage должен запускаться необходимый ноутбук. В ноутбуке обучения реализованы вторичная обработка данных на кластере Yandex DataProc, обучение модели непосредственно в сервисе, загрузка артефактов модели на S3. В ноутбуке инференса - получение предсказаний по новым данным, отгруженным на S3.

  • В сервисе Yandex Cloud Functions располагаются функции, необходимые для запуска ноутбуков, и триггеры, которые привязаны к обновлению данных в Yandex Object Storage по определенным при их создании префиксам. Таким образом, после отгрузки новых данных на бакет производится, в зависимости от расположения данных, обучение/дообучение модели, инференс модели и отгрузка предсказаний в REST API CleverData Join.

Так как важно обеспечить одновременную работу нескольких моделей совершения целевого действия для разных тенантов в системе CD Join, для каждой задачи нужен свой отдельный проект в DataSphere со своими шаблонными ноутбуками, облачными функциями и триггерами. Чтобы процесс был максимально автоматизирован, необходимо, чтобы каждый проект был преднастроен:

  • в него были загружены шаблонные ноутбуки,

  • был активирован готовый Docker-образ для проекта DataSphere.

Забегая вперёд, отметим, что с автоматизацией преднастройки проекта возникли некоторые затруднения, но об этом мы расскажем позднее.

Немного о предобработке данных

Data Processor запускается по расписанию и производит первичную обработку данных и записывает результат в хранилище Yandex Object Storage.

События кликстрима хранятся в CleverData Join в формате AVRO. Предобработка происходит в два этапа.

  • На первом этапе из событий кликстрима извлекаются идентификатор клиента, метка времени и URL перехода. Ссылки очищаются от технических доменов и обрезаются до верхнеуровневых доменов. Данные сохраняются в формате Parquet.

  • Далее для каждого идентификатора клиента формируется цепочка из посещенных URL в хронологическом порядке и дельт, то есть временных интервалов, прошедших между посещениями каждого URL.

Схема предобработки данных
Схема предобработки данных

Процесс, организованный в два этапа, позволяет избегать повторной первичной обработки старых событий. Старые события хранятся в формате Parquet в S3 бакете и периодически дополняются первично обработанными событиями за новые периоды. После этого происходит пересборка цепочек для клиентов, по которым есть обновления.

Автоматизированное создание инфраструктуры

У сервисов Yandex Cloud есть API, позволяющий взаимодействовать с ними без использования UI, что критически важно для реализации управления процессом в Model Manager. В этом разделе мы пройдём по всем автоматизированным через API операциям, а именно:

  • созданию сервисного аккаунта;

  • созданию и настройке сети VPC для кластера Data Proc;

  • созданию проекта в DataSphere;

  • созданию S3 бакета и получению статического ключа доступа;

  • созданию и настройке Cloud Functions и их триггеров.

Сначала создадим сервисный аккаунт, от имени которого будет происходит взаимодействие с ресурсами Yandex Cloud:

def create_service_account(folder_id: str,
                           name: str,
                           iam_token: str,
                           description: str = ''):
  url = 'https://iam.api.cloud.yandex.net/iam/v1/serviceAccounts'
  headers = {"Authorization": f"Bearer {iam_token}"}
  data = {
           "folderId": folder_id,
           "name": name,
           "description": description,
         }
  response = requests.post(url, headers=headers, json=data)
  return response
sa_response = create_service_account(folder_id = folder_id,
                                     name = 'ta-service-account',
                                     iam_token = iam,
                                     description = 'ta-service-account')

Теперь, чтобы у сервисного аккаунта хватало прав на взаимодействие с необходимыми сервисами Yandex Cloud (DataSphere, Object Storage, Data Proc, Cloud Functions, VPC), выдадим ему необходимые роли. Для каталога это:

  • editor - нужна для чтения, записи и управления бакетом S3;

  • vpc.user, vpc.admin - необходимы для настройки доступа кластеру в интернет;

  • dataproc.agent - для использования кластера Data Proc;

  • dataproc.admin - для создания и удаления кластера Data Proc.

def update_access_bindings(resource_id : str,
                           folder_id: str,
                           roles: list = ['iam.serviceAccounts.user',
                                          'editor',
                                          'vpc.user',
                                          'vpc.admin',
                                          'dataproc.admin',
                                          'dataproc.agent'],
                           iam_token: str = iam):
   url = f'https://resource-manager.api.cloud.yandex.net/resource-manager/v1/folders/{folder_id}:updateAccessBindings'
   headers = {"Authorization": f"Bearer {iam_token}"}
   access_binding_deltas = [
       {
           "action": "ADD",
           "accessBinding": {
               "roleId": role,
               "subject": {
                   "id": resource_id,
                   "type": "serviceAccount"
               }
           }
       } for role in roles
   ]
   payload = {
       "accessBindingDeltas": access_binding_deltas
   }
   response = requests.post(url, json=payload, headers=headers)
   return response
response_update_access_bindings = update_access_bindings(
                                                  resource_id=service_account_id,
                                                  folder_id=folder_id)

Также необходимо назначить роль сервисному аккаунту, чтобы можно было им управлять. Роль должна быть назначена как на ресурс:

def update_access_bindings_1(resource_id: str,
roles: list = ['datasphere.community-projects.editor',
'iam.serviceAccounts.user',
'functions.functionInvoker'],
iam_token: str = iam):
url = f"https://iam.api.cloud.yandex.net/iam/v1/serviceAccounts/{resource_id}:updateAccessBindings"
headers = {"Authorization": f"Bearer {iam_token}"}
access_binding_deltas = [
{
"action": "ADD",
"accessBinding": {
"roleId": role,
"subject": {
"id": resource_id,
"type": "serviceAccount"
}
}
} for role in roles
]
payload = {
"accessBindingDeltas": access_binding_deltas
}
response = requests.post(url, json=payload, headers=headers)
return response
update_access_response_1 = update_access_bindings_1(resource_id=service_account_id)

Для того, чтобы кластер Data Proc мог общаться с внешним миром, нам нужно создать сеть VPC, указать шлюз и сформировать таблицу маршрутизации. В этой сети необходимо выделить подсеть для настройки доступа в интернет при помощи созданного шлюза.

Итак, создаём сеть:

def create_network(folder_id: str,
                   network_name: str,
                   description: str,
                   iam_token: str = iam,
                   ):
  url = 'https://vpc.api.cloud.yandex.net/vpc/v1/networks'
  headers = {"Authorization": f"Bearer {iam_token}"}
  data = {
    "folderId": folder_id,
    "name": network_name,
    "description": description,
  }
  response = requests.post(url, headers=headers, json=data)
  return response
create_network_response = create_network(folder_id = folder_id,
                                         network_name = 'network-1',
                                         description = ''
                                         )

…, шлюз:

def create_gateway(folder_id: str,
                   gateway_name: str,
                   description: str,
                   iam_token: str = iam,
                   ):
  url = 'https://vpc.api.cloud.yandex.net/vpc/v1/gateways'
  headers = {"Authorization": f"Bearer {iam_token}"}
  data = {
    "folderId": folder_id,
    "name": gateway_name,
    "description": description,
    "sharedEgressGatewaySpec": {}
  }
  response = requests.post(url, headers=headers, json=data)
  return response
response_create_gateway = create_gateway(folder_id = folder_id,
                                         gateway_name = 'gateway',
                                         description = ''
                                         )

…, таблицу маршрутизации:

def create_route_table(folder_id: str,
                         route_table_name: str,
                         description: str,
                         gateway_id: str,
                         network_id: str,
                         destination_prefix: str = '0.0.0.0/0',
                         iam_token: str = iam,
                         ):
  url = 'https://vpc.api.cloud.yandex.net/vpc/v1/routeTables'
  headers = {"Authorization": f"Bearer {iam_token}"}
  data = {
    "folderId": folder_id,
    "name": route_table_name,
    "description": description,
    "networkId": network_id,
    "staticRoutes": [
      {
        "destinationPrefix": destination_prefix,
        "gatewayId": gateway_id,
      }
    ]
  }
  response = requests.post(url, headers=headers, json=data)
  return response
response_create_route_table = create_route_table(folder_id = folder_id,
                                           route_table_name = 'route-table',
                                           description = '',
                                           gateway_id = gateway_id,
                                           network_id = network_id,
                                           destination_prefix = '0.0.0.0/0'
                                                      )

…, и подсеть с доступом в интернет:

def create_subnet(folder_id: str,
                  subnet_name: str,
                  network_id: str,
                  route_table_id: str,
                  description: str,
                  ip_range: str,
                  zone_id: str,
                  dhcp_options: dict = {},
                  iam_token: str = iam,
                  ):
  url = 'https://vpc.api.cloud.yandex.net/vpc/v1/subnets'
  headers = {"Authorization": f"Bearer {iam_token}"}
  data = {
    "folderId": folder_id,
    "name": subnet_name,
    "description": description,
    "networkId": network_id,
    "zoneId": zone_id,
    "v4CidrBlocks": [
      ip_range
    ],
    "routeTableId": route_table_id,
    "dhcpOptions": dhcp_options
  }
  response = requests.post(url, headers=headers, json=data)
  return response
response_create_subnet_a = create_subnet(folder_id = folder_id,
                subnet_name = 'subnet-ru-central1-a',
                network_id = network_id,
                route_table_id = route_table_id,
                description = 'default subnet for zone ru-central1-a',
                ip_range = '10.128.0.0/24',
                zone_id = 'ru-central1-a',
                dhcp_options = {},
                )

В процессе работы мы будем создавать кластер Data Proc, на котором производится вторичная обработка данных.

При создании кластера важно не забыть передать идентификатор подсети, для которой мы ранее настраивали доступ в интернет. Нам нужно создать объект конфигурации с информацией о подкластерах, их ролях, типе и размере диска, количестве хостов. Этот объект будет передан в функцию создания кластера. 

def create_cluster(folder_id: str,
                   cluster_name: str,
                   description: str,
                   config_spec: dict,
                   service_account_id: str,
                   zone_id: str,
                   bucket: str,
                   ui_proxy: bool,
                   security_group_ids: str,
                   host_group_ids: str,
                   deletion_protection: bool,
                   log_group_id: str,
                   iam_token: str = iam,
                   ):
  url = 'https://dataproc.api.cloud.yandex.net/dataproc/v1/clusters'
  headers = {"Authorization": "Bearer {}".format(iam_token)}
  data = {
  "folderId": folder_id,
  "name": cluster_name,
  "description": description,
  "configSpec": config_spec,
  "zoneId": zone_id,
  "serviceAccountId": service_account_id,
  "uiProxy": ui_proxy,
  "deletionProtection": deletion_protection,
  }
  response = requests.post(url, headers=headers, json=data)
  return response
config_spec = {
  "versionId": "2.0",
  "hadoop": {
  "services": [
              'HDFS',
              'LIVY',
              'MAPREDUCE',
              'SPARK',
              'TEZ',
              'YARN',
              'ZEPPELIN'
  ],
  "sshPublicKeys": [
      public_key
  ],
  },
  "subclustersSpec": [
  {
      "name": "master",
      "role": "MASTERNODE",
      "resources": {
      "resourcePresetId": "s2.micro",
      "diskTypeId": "network-ssd",
      "diskSize": "137438953472"
      },
      "subnetId": a_subnet_id,
      "hostsCount": "1",
      "assignPublicIp": False,
  },
  {
      "name": "data",
      "role": "DATANODE",
      "resources": {
      "resourcePresetId": "s2.small",
      "diskTypeId": "network-hdd",
      "diskSize": "274877906944"
      },
      "subnetId": a_subnet_id,
      "hostsCount": "1",
      "assignPublicIp": False,
  },
  ]
}
response_create_cluster = create_cluster(folder_id = folder_id,
                                         cluster_name = 'xs-proc',
                                         description = '',
                                         config_spec = config_spec,
                                         service_account_id = service_account_id,
                                         zone_id = zone_id,
                                         bucket = '',
                                         ui_proxy = False,
                                         security_group_ids = '',
                                         host_group_ids = '',
                                         deletion_protection = False,
                                         log_group_id = '')
cluster_id = response_create_cluster.json()['metadata']['clusterId']

Так как кластер будет считывать данные с s3, нужно предоставить ему Credentials для доступа к S3:

#!spark --cluster=xs-proc --session preparing_session --variables key --variables sct
sc._jsc.hadoopConfiguration().set("fs.s3a.endpoint", "storage.yandexcloud.net")
sc._jsc.hadoopConfiguration().set("fs.s3a.signing-algorithm", "")
sc._jsc.hadoopConfiguration().set("fs.s3a.aws.credentials.provider", "org.apache.hadoop.fs.s3a.SimpleAWSCredentialsProvider")
sc._jsc.hadoopConfiguration().set("fs.s3a.access.key",key)
sc._jsc.hadoopConfiguration().set("fs.s3a.secret.key",sct)

Теперь мы готовы создать проект в DataSphere, в нем будут происходить все операции, связанные с обучением и инференсом ML-моделей:

def create_project(project_name: str,
                   community_id: str,
                   service_account_id: str,
                   description: str,
                   subnet_id: str,
                   commit_mode: str,
                   default_folder_id: str,
                   vm_inactivity_timeout: str,
                   default_dedicated_spec: str,
                   data_proc_cluster_id: str = '',
                   security_group_ids: list = [],
                   limits: dict = {},
                   early_access: bool = False,
                   ide: str = 'JUPYTER_LAB',
                   iam_token: str = iam):
 url = 'https://datasphere.api.cloud.yandex.net/datasphere/v2/projects'
 headers = {"Authorization": f"Bearer {iam_token}"}
 data = {
   "communityId": community_id,
   "name": project_name,
   "description": description,
   "settings": {
     "serviceAccountId": service_account_id,
     "subnetId": subnet_id,
     "dataProcClusterId": data_proc_cluster_id,
     "commitMode": commit_mode,
     "securityGroupIds": security_group_ids,
     "earlyAccess": early_access,
     "ide": ide,
     "defaultFolderId": default_folder_id,
     "vmInactivityTimeout": vm_inactivity_timeout,
     "defaultDedicatedSpec": default_dedicated_spec
   },
   "limits": limits
 }
 response = requests.post(url, headers=headers, json=data)
 return response
response_create_project = create_project(project_name = 'ta-service-project',
                                         community_id = community_id,
                                         service_account_id = service_account_id,
                                         subnet_id = a_subnet_id,
                                         description = 'ta model project',
                                         commit_mode = 'AUTO',
                                         default_folder_id = folder_id,
                                         vm_inactivity_timeout = '1800s',
                                         default_dedicated_spec = 'c1.4')

Сервисный аккаунт, который из Cloud Functions будет запускать ноутбук, должен быть в участниках проекта DataSphere. Выдадим ему соответствующую роль:

def update_access_bindings_2(resource_id : str,
                            project_id: str,
                            roles: list = ['datasphere.community-projects.editor'],
                            iam_token: str = iam):
   url = f"https://datasphere.api.cloud.yandex.net/datasphere/v2/projects/{project_id}:updateAccessBindings"
   headers = {"Authorization": f"Bearer {iam_token}"}
   access_binding_deltas = [
       {
           "action": "ADD",
           "accessBinding": {
               "roleId": role,
               "subject": {
                   "id": resource_id,
                   "type": "serviceAccount"
               }
           }
       } for role in roles
   ]
   payload = {
       "accessBindingDeltas": access_binding_deltas
   }
   response = requests.patch(url, json=payload, headers=headers)
   return response
response_update_access_bindings_2 = update_access_bindings_2(resource_id=service_account_id,
                         project_id=project_id)

Вы можете использовать для обмена данными уже существующий бакет S3. Но, если его нет, то его создание также не представляет сложности:

def create_bucket(bucket_name: str,
                  folder_id: str,
                  default_storage_class: str,
                  max_size: str,
                  anonymous_access_flags: dict,
                  acl: dict,
                  versioning: str,
                  tags: list,
                  iam_token: str = iam,
                  ):
  url = 'https://storage.api.cloud.yandex.net/storage/v1/buckets'
  headers = {"Authorization": f"Bearer {iam_token}"}
  data = {
    "name": bucket_name,
    "folderId": folder_id,
    "defaultStorageClass": default_storage_class,
    "maxSize": max_size,
    "anonymousAccessFlags": anonymous_access_flags,
    "versioning": versioning,
    "acl": acl,
    "tags": tags
  }
  response = requests.post(url, headers=headers, json=data)
  return response
bucket_name = 'test-storage-042'
response_create_bucket = create_bucket(bucket_name = bucket_name,
                           folder_id = folder_id,
                           default_storage_class = 'STANDARD',
                           max_size = '3221225472',
                           anonymous_access_flags = {'read': False, 'list': False},
                           acl = {},
                           versioning = 'VERSIONING_DISABLED',
                           tags = [])

Однако крайне важно создать статический ключ доступа к бакету. Ключ позволяет читать данные с S3 как кластеру Data Proc, так и при помощи SDK boto3. Конечно же, у сервисного аккаунта service_account_id, указанного в функции, должна быть роль в каталоге с правами чтения и записи S3 бакета, в нашем случае это editor. 

def create_static_key(service_account_id: str,
                      description: str,
                      iam_token: str = iam,
                     ):
   url = 'https://iam.api.cloud.yandex.net/iam/aws-compatibility/v1/accessKeys'
   headers = {"Authorization": f"Bearer {iam_token}"}
   data = {
     "serviceAccountId": service_account_id,
     "description": description
   }
   response = requests.post(url, headers=headers, json=data)
   return response
response_create_static_key = create_static_key(
                               service_account_id = service_account_id,
                               description = '')
key = response_create_static_key.json()['accessKey']['keyId']
secret = response_create_static_key.json()['secret']

Обязательно сохраняем идентификатор статического ключа и секретный ключ в защищенном месте. Мы передадим их через параметр запроса InputVariables метода execute при запуске ноутбуков.

Создаем функцию в Cloud Functions, которая будет запускать обучение:

def create_cloud_function(folder_id: str,
                          function_name: str,
                          description: str,
                          iam_token: str = iam):
   url = 'https://serverless-functions.api.cloud.yandex.net/functions/v1/functions'
   headers = {"Authorization": f"Bearer {iam_token}"}
   data = {
     "folderId": folder_id,
     "name": function_name,
     "description": description,
   }
   response = requests.post(url, headers=headers, json=data)
   return response
response_create_cloud_function = create_cloud_function(folder_id = folder_id,
                                                       function_name = 'fit',
                                                       description = 'start fit')

Далее нужно собрать версию функции, в которую передадим сам код скрипта в виде строки. Чтобы получить эту строку, нужно заархивировать код функции в zip-архив и закодировать в base64. Строка передается в переменную content:

def create_cloud_function_version(function_id: str,
                                 resources: dict,
                                 runtime: str,
                                 entrypoint: str,
                                 log_options: dict,
                                 description: str,
                                 execution_timeout: str,
                                 service_account_id: str,
                                 content: str,
                                 iam_token: str = iam
                                 ):
   url = 'https://serverless-functions.api.cloud.yandex.net/functions/v1/versions'
   headers = {"Authorization": f"Bearer {iam_token}"}
   data = {
     "functionId": function_id,
     "runtime": runtime,
     "description": description,
     "entrypoint": entrypoint,
     "resources": resources,
     "executionTimeout": execution_timeout,
     "serviceAccountId": service_account_id,
     "logOptions": log_options,
     "content": content,
   }
   response = requests.post(url, headers=headers, json=data)
   return response
response_create_cloud_function_version = create_cloud_function_version(
function_id = fit_cf_id,
resources = {'memory': '134217728'},
runtime = 'python312',
entrypoint = 'index.handler',
log_options = {'disabled': False, 'folderId': folder_id},
description = 'the function will execute fit notebook',      
execution_timeout = '1s',                                                                    
service_account_id = service_account_id,
content = str(encoded)[2:-1],
iam_token = iam
)

Функция и ее версия для запуска инференса добавляется полностью аналогичным образом.

Осталось создать триггеры, которые после появления новых данных в S3 запустят функции, которые в свою очередь запустят обучение, инференс или же отправку предсказаний в CleverData Join.

Мы будем отслеживать появление нового объекта на S3 с заданным префиксом, поэтому используем соответствующий event_type и передадим нужный prefix:

def create_trigger(folder_id: str,
                  trigger_name: str,
                  description: str,
                  event_type: str,
                  bucket_id: str,
                  prefix: str,
                  cloud_function_id: str,
                  service_account_id: str,
                  retry_attempts: str,
                  interval: str,
                  function_tag: str = '$latest',
                  iam_token: str = iam
                  ):
  url = 'https://serverless-triggers.api.cloud.yandex.net/triggers/v1/triggers'
  headers = {"Authorization": f"Bearer {iam_token}"}
  data = {
    "folderId": folder_id,
    "name": trigger_name,
    "description": description,
    "rule": {
      "objectStorage": {
        "eventType": [
          event_type
        ],
        "bucketId": bucket_id,
        "prefix": prefix,
        "invokeFunction": {
          "functionId": cloud_function_id,
          "functionTag": function_tag,
          "serviceAccountId": service_account_id,
          "retrySettings": {
            "retryAttempts": retry_attempts,
            "interval": interval
          },
        },
      },
    }
  }
  response = requests.post(url, headers=headers, json=data)
  return response
response_create_fit_trigger = create_trigger(
                         folder_id = folder_id,
                         trigger_name = 'fit-test-trigger',
                         description = '',
                         event_type = 'OBJECT_STORAGE_EVENT_TYPE_CREATE_OBJECT',
                         bucket_id = bucket_id,
                         prefix = fitting_trigger_prefix,
                         cloud_function_id = fit_cf_id,
                         service_account_id = service_account_id,
                         retry_attempts = '5',
                         interval = '20s',
                         function_tag = '$latest')

Поговорим немного о возврате данных в CDP. В CleverData Join имеются готовые адаптеры на пакетную загрузку данных. При этом, все операции взаимодействия с CDP также превосходно автоматизируются через API.

Мы создаем экземпляр входящего адаптера для того, чтобы передавать и записывать в атрибут клиентского профиля CDP предсказания модели:

def create_adapter_instance_input(adapter_instance_id: str,
                                  source: str,
                                  cid: str,
                                  access_token: str,
                                  value: dict={}):
   headers = {"Authorization": "Bearer {}".format(access_token),
              "x-dmpkit-onbehalf-of": cid}
   url = f'https://domain_name.cleverdata.ru/integration-manager/v1/adapters/1/instances/{adapter_instance_id}/inputs'
   data = {
       "value":value,
       "source":source,
       "adapterInstanceId":adapter_instance_id
   }
   response = requests.post(url, json=data, headers=headers)
   return response
response = create_adapter_instance_input(adapter_instance_id=adapter_instance_id,
                                         source='predictions_task.json',
                                         access_token=access_token,
                                         cid=cid)

Все, что останется сделать, - реализовать в теле функции загрузку данных в файловый менеджер CleverData Join. Это тоже можно реализовать через API. Загруженные данные будут обработаны ранее созданным адаптером.

Обучение и дообучение модели

После запуска ноутбука обучения или инференса в проекте DataSphere происходит вторичная обработка с использованием кластера Dataproc. Новые сведения о событиях кликстрима добавляются в цепочки действий клиента. Далее на полученных цепочках происходит обучение модели.

Код вторичной обработки и код обучения во время первичного и повторного запуска ноутбуков немного отличается. Один и тот же код в зависимости от состояния объектов в бакете обрабатывает следующие несколько ситуаций. Рассмотрим их по отдельности.

Первичное обучение и первичный инференс модели
Первичное обучение и первичный инференс модели

В ситуации, когда в бакете находится только файл с событиями за текущий период, полученный в результате первичной обработки, мы имеем дело с первичным обучением модели. Следовательно, после обработки данных ноутбук выполнит последовательность первичного обучения модели. Для ноутбука инференса реализована та же логика. Если это первые данные для инференса в бакете, то модель вычислит предсказания для всех профилей.

Дообучение модели
Дообучение модели

В случае, если в бакете уже находились данные за предыдущие периоды, произойдет объединение строк и построение новых цепочек. Далее - дообучение модели.

ad3a0afaa01c36a2088dd9d38a5885f0.png

Схема для повторного инференса выглядит схожим образом. Отличие заключается в том, что в данных за предыдущие периоды будут оставлены только события клиентов текущего периода. За счёт этого цепочки будут перестроены только для новых клиентов - именно тех, по которым значения предиктивных атрибутов ещё не сформированы.

В процессе дообучения создается новая модель-кандидат. Для того, чтобы определить, лучше ли эта модель, чем предыдущая, сравнивается AUC-ROC score новой модели на тестовой выборке с аналогичным показателем предыдущей модели, который сохраняется в бакете S3. При отсутствии увеличения метрики несколько итераций дообучения подряд - процесс дообучения заканчивается. Если же после дообучения модель показала лучшее качество, чем предыдущая лучшая модель, то происходит обновление лучшей модели (а также токенизатора, значения порога предсказания, файла с AUC-ROC score).

Ограничения в MVP версии проекта

В процессе реализации решения обнаружили некоторые ограничения, проработка которых может помочь расширить функциональность этого сервиса в будущем.

Например, в настоящее время отсутствует метод для загрузки ноутбуков в проект DataSphere. Поэтому при реализации мы изменили логику и ввели концепцию сервисного ноутбука, который однократно создается в DataSphere вручную. Это -разовая операция, нет необходимости выполнять ее для каждой новой задачи предсказания.

При заведении новой задачи выполнения целевого действия Model Manager размещает рабочие ноутбуки в S3 бакете. Сервисный ноутбук скачивает их в файловую систему DataSphere и последовательно запускает, если для задачи, соответствующей ноутбуку, есть новые первично обработанные данные.

Переход к данной концепции позволил ускорить и удешевить вторичную обработку. Теперь она сопровождается единоразовым поднятием кластера Data Proc и единой вторичной обработкой файлов всех задач клиента, под которые есть свежие данные.

Подводя итог, важно отметить, что в совокупности с концепцией сервисного ноутбука добавление метода загрузки ноутбуков в API позволит добиться еще более эффективной автоматизации развертывания пайплайна в Yandex Cloud, исключив необходимость в использовании UI.

Отключение режима запуска ноутбуков в Serverless в DataSphere

MVP изначально проектировалось в Serverless-парадигме - планировалось выделять ресурсы только в момент запуска вычислительных задач. Разумеется, мы с огромным удовольствием воспользовались Serverless-режимом запуска ноутбуков в DataSphere - это позволяло распределять рабочую нагрузку на CPU- и GPU-ресурсы в зависимости от характера нагрузки, хотя и приходилось взамен жертвовать временем на сериализацию, десериализацию переменных в процессе перехода между инстансами. Однако данный режим более не поддерживается, и, следовательно, нами был осуществлен переход к Dedicated.

Cтоит подчеркнуть, что переход от режима Serverless к Dedicated не повлиял на увеличение расходов на ресурсы вследствие простаивания инстансов, поскольку выделенная ВМ на запуск ноутбука через API после завершения выполнения инструкций моментально удаляется.

В рамках доработки текущего ограничения мы должны будем подобрать наиболее оптимальную конфигурацию ВМ при запуске в режиме Dedicated.

Ручная активация docker-образа в проекте

Пока что нет возможности взаимодействовать с ресурсом Docker-образ проекта DataSphere посредством API. Однако в ближайшем будущем этот функционал будет добавлен в API, что также обеспечит большую гибкость при развертывании пайплайна.

Для повышения функциональности ML-сервиса в CDP все перечисленные ограничения будут проработаны при разработке его продакшн-версии, в том числе некоторые из них будут усовершенствованы в сотрудничестве с Yandex Cloud.

Итоги MVP

Подводя итоги, можно с уверенностью сказать, что цели MVP были достигнуты.

  • Мы проверили гипотезу о возможности практически полностью автоматизированного развертывания инфраструктуры сервиса в облаке.

  • Построили эффективный конвейер предобработки данных.

  • Научились запускать код обучения и инференса по внешним триггерам.

  • Организовали процесс дообучения модели.

Использование ML-сервисов Yandex Cloud позволяет значительно упростить разработку решений по предиктивному анализу данных. Разработанный функционал является отличным дополнением к уже существующим широким возможностям платформы CleverData Join в части накопления знаний о едином профиле пользователя и построении его клиентского пути и позволяет обогащать данные о клиентской базе и открывает возможности использования предиктивных атрибутов для сегментации аудитории и организации адресных взаимодействий с клиентом.

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  • 07.09.23 16:24 CherryTeam

    Cherry Team atlyginimų skaičiavimo programa yra labai naudingas įrankis įmonėms, kai reikia efektyviai valdyti ir skaičiuoti darbuotojų atlyginimus. Ši programinė įranga, turinti išsamias funkcijas ir patogią naudotojo sąsają, suteikia daug privalumų, kurie padeda supaprastinti darbo užmokesčio skaičiavimo procesus ir pagerinti finansų valdymą. Štai keletas pagrindinių priežasčių, kodėl Cherry Team atlyginimų skaičiavimo programa yra naudinga įmonėms: Automatizuoti ir tikslūs skaičiavimai: Atlyginimų skaičiavimai rankiniu būdu gali būti klaidingi ir reikalauti daug laiko. Programinė įranga Cherry Team automatizuoja visą atlyginimų skaičiavimo procesą, todėl nebereikia atlikti skaičiavimų rankiniu būdu ir sumažėja klaidų rizika. Tiksliai apskaičiuodama atlyginimus, įskaitant tokius veiksnius, kaip pagrindinis atlyginimas, viršvalandžiai, premijos, išskaitos ir mokesčiai, programa užtikrina tikslius ir be klaidų darbo užmokesčio skaičiavimo rezultatus. Sutaupoma laiko ir išlaidų: Darbo užmokesčio valdymas gali būti daug darbo jėgos reikalaujanti užduotis, reikalaujanti daug laiko ir išteklių. Programa Cherry Team supaprastina ir pagreitina darbo užmokesčio skaičiavimo procesą, nes automatizuoja skaičiavimus, generuoja darbo užmokesčio žiniaraščius ir tvarko išskaičiuojamus mokesčius. Šis automatizavimas padeda įmonėms sutaupyti daug laiko ir pastangų, todėl žmogiškųjų išteklių ir finansų komandos gali sutelkti dėmesį į strategiškai svarbesnę veiklą. Be to, racionalizuodamos darbo užmokesčio operacijas, įmonės gali sumažinti administracines išlaidas, susijusias su rankiniu darbo užmokesčio tvarkymu. Mokesčių ir darbo teisės aktų laikymasis: Įmonėms labai svarbu laikytis mokesčių ir darbo teisės aktų, kad išvengtų baudų ir teisinių problemų. Programinė įranga Cherry Team seka besikeičiančius mokesčių įstatymus ir darbo reglamentus, užtikrindama tikslius skaičiavimus ir teisinių reikalavimų laikymąsi. Programa gali dirbti su sudėtingais mokesčių scenarijais, pavyzdžiui, keliomis mokesčių grupėmis ir įvairių rūšių atskaitymais, todėl užtikrina atitiktį reikalavimams ir kartu sumažina klaidų riziką. Ataskaitų rengimas ir analizė: Programa Cherry Team siūlo patikimas ataskaitų teikimo ir analizės galimybes, suteikiančias įmonėms vertingų įžvalgų apie darbo užmokesčio duomenis. Ji gali generuoti ataskaitas apie įvairius aspektus, pavyzdžiui, darbo užmokesčio paskirstymą, išskaičiuojamus mokesčius ir darbo sąnaudas. Šios ataskaitos leidžia įmonėms analizuoti darbo užmokesčio tendencijas, nustatyti tobulintinas sritis ir priimti pagrįstus finansinius sprendimus. Pasinaudodamos duomenimis pagrįstomis įžvalgomis, įmonės gali optimizuoti savo darbo užmokesčio strategijas ir veiksmingai kontroliuoti išlaidas. Integracija su kitomis sistemomis: Cherry Team programinė įranga dažnai sklandžiai integruojama su kitomis personalo ir apskaitos sistemomis. Tokia integracija leidžia automatiškai perkelti atitinkamus duomenis, pavyzdžiui, informaciją apie darbuotojus ir finansinius įrašus, todėl nebereikia dubliuoti duomenų. Supaprastintas duomenų srautas tarp sistemų padidina bendrą efektyvumą ir sumažina duomenų klaidų ar neatitikimų riziką. Cherry Team atlyginimų apskaičiavimo programa įmonėms teikia didelę naudą - automatiniai ir tikslūs skaičiavimai, laiko ir sąnaudų taupymas, atitiktis mokesčių ir darbo teisės aktų reikalavimams, ataskaitų teikimo ir analizės galimybės bei integracija su kitomis sistemomis. Naudodamos šią programinę įrangą įmonės gali supaprastinti darbo užmokesčio skaičiavimo procesus, užtikrinti tikslumą ir atitiktį reikalavimams, padidinti darbuotojų pasitenkinimą ir gauti vertingų įžvalgų apie savo finansinius duomenis. Programa Cherry Team pasirodo esanti nepakeičiamas įrankis įmonėms, siekiančioms efektyviai ir veiksmingai valdyti darbo užmokestį. https://cherryteam.lt/lt/

  • 08.10.23 01:30 davec8080

    The "Shibarium for this confirmed rug pull is a BEP-20 project not related at all to Shibarium, SHIB, BONE or LEASH. The Plot Thickens. Someone posted the actual transactions!!!! https://bscscan.com/tx/0xa846ea0367c89c3f0bbfcc221cceea4c90d8f56ead2eb479d4cee41c75e02c97 It seems the article is true!!!! And it's also FUD. Let me explain. Check this link: https://bscscan.com/token/0x5a752c9fe3520522ea88f37a41c3ddd97c022c2f So there really is a "Shibarium" token. And somebody did a rug pull with it. CONFIRMED. But the "Shibarium" token for this confirmed rug pull is a BEP-20 project not related at all to Shibarium, SHIB, BONE or LEASH.

  • 24.06.24 04:31 tashandiarisha

    Web-site. https://trustgeekshackexpert.com/ Tele-Gram, trustgeekshackexpert During the pandemic, I ventured into the world of cryptocurrency trading. My father loaned me $10,000, which I used to purchase my first bitcoins. With diligent research and some luck, I managed to grow my investment to over $350,000 in just a couple of years. I was thrilled with my success, but my excitement was short-lived when I decided to switch brokers and inadvertently fell victim to a phishing attack. While creating a new account, I received what seemed like a legitimate email requesting verification. Without second-guessing, I provided my information, only to realize later that I had lost access to my email and cryptocurrency wallets. Panic set in as I watched my hard-earned assets disappear before my eyes. Desperate to recover my funds, I scoured the internet for solutions. That's when I stumbled upon the Trust Geeks Hack Expert on the Internet. The service claimed to specialize in recovering lost crypto assets, and I decided to take a chance. Upon contacting them, the team swung into action immediately. They guided me through the entire recovery process with professionalism and efficiency. The advantages of using the Trust Geeks Hack Expert Tool became apparent from the start. Their team was knowledgeable and empathetic, understanding the urgency and stress of my situation. They employed advanced security measures to ensure my information was handled safely and securely. One of the key benefits of the Trust Geeks Hack Expert Tool was its user-friendly interface, which made a complex process much more manageable for someone like me, who isn't particularly tech-savvy. They also offered 24/7 support, so I never felt alone during recovery. Their transparent communication and regular updates kept me informed and reassured throughout. The Trust Geeks Hack Expert Tool is the best solution for anyone facing similar issues. Their swift response, expertise, and customer-centric approach set them apart from other recovery services. Thanks to their efforts, I regained access to my accounts and my substantial crypto assets. The experience taught me a valuable lesson about online security and showed me the incredible potential of the Trust Geeks Hack Expert Tool. Email:: trustgeekshackexpert{@}fastservice{.}com WhatsApp  + 1.7.1.9.4.9.2.2.6.9.3

  • 26.06.24 18:46 Jacobethannn098

    LEGAL RECOUP FOR CRYPTO THEFT BY ADRIAN LAMO HACKER

  • 26.06.24 18:46 Jacobethannn098

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  • 04.07.24 04:49 ZionNaomi

    For over twenty years, I've dedicated myself to the dynamic world of marketing, constantly seeking innovative strategies to elevate brand visibility in an ever-evolving landscape. So when the meteoric rise of Bitcoin captured my attention as a potential avenue for investment diversification, I seized the opportunity, allocating $20,000 to the digital currency. Witnessing my investment burgeon to an impressive $70,000 over time instilled in me a sense of financial promise and stability.However, amidst the euphoria of financial growth, a sudden and unforeseen oversight brought me crashing back to reality during a critical business trip—I had misplaced my hardware wallet. The realization that I had lost access to the cornerstone of my financial security struck me with profound dismay. Desperate for a solution, I turned to the expertise of Daniel Meuli Web Recovery.Their response was swift . With meticulous precision, they embarked on the intricate process of retracing the elusive path of my lost funds. Through their unwavering dedication, they managed to recover a substantial portion of my investment, offering a glimmer of hope amidst the shadows of uncertainty. The support provided by Daniel Meuli Web Recovery extended beyond mere financial restitution. Recognizing the imperative of fortifying against future vulnerabilities, they generously shared invaluable insights on securing digital assets. Their guidance encompassed crucial aspects such as implementing hardware wallet backups and fortifying security protocols, equipping me with recovered funds and newfound knowledge to navigate the digital landscape securely.In retrospect, this experience served as a poignant reminder of the critical importance of diligence and preparedness in safeguarding one's assets. Thanks to the expertise and unwavering support extended by Daniel Meuli Web Recovery, I emerged from the ordeal with renewed resilience and vigilance. Empowered by their guidance and fortified by enhanced security measures, I now approach the future with unwavering confidence.The heights of financial promise to the depths of loss and back again has been a humbling one, underscoring the volatility and unpredictability inherent in the digital realm. Yet, through adversity, I have emerged stronger, armed with a newfound appreciation for the importance of diligence, preparedness, and the invaluable support of experts like Daniel Meuli Web Recovery.As I persist in traversing the digital landscape, I do so with a judicious blend of vigilance and fortitude, cognizant that with adequate safeguards and the backing of reliable confidants, I possess the fortitude to withstand any adversity that may arise. For this, I remain eternally appreciative. Email Danielmeuliweberecovery @ email . c om WhatsApp + 393 512 013 528

  • 13.07.24 21:13 michaelharrell825

    In 2020, amidst the economic fallout of the pandemic, I found myself unexpectedly unemployed and turned to Forex trading in hopes of stabilizing my finances. Like many, I was drawn in by the promise of quick returns offered by various Forex robots, signals, and trading advisers. However, most of these products turned out to be disappointing, with claims that were far from reality. Looking back, I realize I should have been more cautious, but the allure of financial security clouded my judgment during those uncertain times. Amidst these disappointments, Profit Forex emerged as a standout. Not only did they provide reliable service, but they also delivered tangible results—a rarity in an industry often plagued by exaggerated claims. The positive reviews from other users validated my own experience, highlighting their commitment to delivering genuine outcomes and emphasizing sound financial practices. My journey with Profit Forex led to a net profit of $11,500, a significant achievement given the challenges I faced. However, my optimism was short-lived when I encountered obstacles trying to withdraw funds from my trading account. Despite repeated attempts, I found myself unable to access my money, leaving me frustrated and uncertain about my financial future. Fortunately, my fortunes changed when I discovered PRO WIZARD GIlBERT RECOVERY. Their reputation for recovering funds from fraudulent schemes gave me hope in reclaiming what was rightfully mine. With a mixture of desperation and cautious optimism, I reached out to them for assistance. PRO WIZARD GIlBERT RECOVERY impressed me from the start with their professionalism and deep understanding of financial disputes. They took a methodical approach, using advanced techniques to track down the scammers responsible for withholding my funds. Throughout the process, their communication was clear and reassuring, providing much-needed support during a stressful period. Thanks to PRO WIZARD GIlBERT RECOVERY's expertise and unwavering dedication, I finally achieved a resolution to my ordeal. They successfully traced and retrieved my funds, restoring a sense of justice and relief. Their intervention not only recovered my money but also renewed my faith in ethical financial services. Reflecting on my experience, I've learned invaluable lessons about the importance of due diligence and discernment in navigating the Forex market. While setbacks are inevitable, partnering with reputable recovery specialists like PRO WIZARD GIlBERT RECOVERY can make a profound difference. Their integrity and effectiveness have left an indelible mark on me, guiding my future decisions and reinforcing the value of trustworthy partnerships in achieving financial goals. I wholeheartedly recommend PRO WIZARD GIlBERT RECOVERY to anyone grappling with financial fraud or disputes. Their expertise and commitment to client satisfaction are unparalleled, offering a beacon of hope in challenging times. Thank you, PRO WIZARD GIlBERT RECOVERY, for your invaluable assistance in reclaiming what was rightfully mine. Your service not only recovered my funds but also restored my confidence in navigating the complexities of financial markets with greater caution and awareness. Email: prowizardgilbertrecovery(@)engineer.com Homepage: https://prowizardgilbertrecovery.xyz WhatsApp: +1 (516) 347‑9592

  • 17.07.24 02:26 thompsonrickey

    In the vast and often treacherous realm of online investments, I was entangled in a web of deceit that cost me nearly  $45,000. It all started innocuously enough with an enticing Instagram profile promising lucrative returns through cryptocurrency investment. Initially, everything seemed promising—communications were smooth, and assurances were plentiful. However, as time passed, my optimism turned to suspicion. Withdrawal requests were met with delays and excuses. The once-responsive "investor" vanished into thin air, leaving me stranded with dwindling hopes and a sinking feeling in my gut. It became painfully clear that I had been duped by a sophisticated scheme designed to exploit trust and naivety. Desperate to recover my funds, I turned to online forums where I discovered numerous testimonials advocating for Muyern Trust Hacker. With nothing to lose, I contacted them, recounting my ordeal with a mixture of skepticism and hope. Their swift response and professional demeanor immediately reassured me that I had found a lifeline amidst the chaos. Muyern Trust Hacker wasted no time in taking action. They meticulously gathered evidence, navigated legal complexities, and deployed their expertise to expedite recovery. In what felt like a whirlwind of activity, although the passage of time was a blur amidst my anxiety, they achieved the seemingly impossible—my stolen funds were returned. The relief I felt was overwhelming. Muyern Trust Hacker not only restored my financial losses but also restored my faith in justice. Their commitment to integrity and their relentless pursuit of resolution were nothing short of remarkable. They proved themselves as recovery specialists and guardians against digital fraud, offering hope to victims like me who had been ensnared by deception. My gratitude knows no bounds for Muyern Trust Hacker. Reach them at muyerntrusted @ m a i l - m e . c o m AND Tele gram @ muyerntrusthackertech

  • 18.07.24 20:13 austinagastya

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  • 27.08.24 12:50 James889900

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  • 27.08.24 13:06 James889900

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  • 02.09.24 20:24 [email protected]

    If You Need Hacker To Recover Your Bitcoin Contact Paradox Recovery Wizard Paradox Recovery Wizard successfully recovered $123,000 worth of Bitcoin for my husband, which he had lost due to a security breach. The process was efficient and secure, with their expert team guiding us through each step. They were able to trace and retrieve the lost cryptocurrency, restoring our peace of mind and financial stability. Their professionalism and expertise were instrumental in recovering our assets, and we are incredibly grateful for their service. Email: support@ paradoxrecoverywizard.com Email: paradox_recovery @cyberservices.com Wep: https://paradoxrecoverywizard.com/ WhatsApp: +39 351 222 3051.

  • 06.09.24 01:35 Celinagarcia

    HOW TO RECOVER MONEY LOST IN BITCOIN/USDT TRADING OR TO CRYPTO INVESTMENT !! Hi all, friends and families. I am writing From Alberton Canada. Last year I tried to invest in cryptocurrency trading in 2023, but lost a significant amount of money to scammers. I was cheated of my money, but thank God, I was referred to Hack Recovery Wizard they are among the best bitcoin recovery specialists on the planet. they helped me get every penny I lost to the scammers back to me with their forensic techniques. and I would like to take this opportunity to advise everyone to avoid making cryptocurrency investments online. If you ​​​​​​have already lost money on forex, cryptocurrency or Ponzi schemes, please contact [email protected] or WhatsApp: +1 (757) 237–1724 at once they can help you get back the crypto you lost to scammers. BEST WISHES. Celina Garcia.

  • 06.09.24 01:44 Celinagarcia

    HOW TO RECOVER MONEY LOST IN BITCOIN/USDT TRADING OR TO CRYPTO INVESTMENT !! Hi all, friends and families. I am writing From Alberton Canada. Last year I tried to invest in cryptocurrency trading in 2023, but lost a significant amount of money to scammers. I was cheated of my money, but thank God, I was referred to Hack Recovery Wizard they are among the best bitcoin recovery specialists on the planet. they helped me get every penny I lost to the scammers back to me with their forensic techniques. and I would like to take this opportunity to advise everyone to avoid making cryptocurrency investments online. If you ​​​​​​have already lost money on forex, cryptocurrency or Ponzi schemes, please contact [email protected] or WhatsApp: +1 (757) 237–1724 at once they can help you get back the crypto you lost to scammers. BEST WISHES. Celina Garcia.

  • 16.09.24 00:10 marcusaustin

    Bitcoin Recovery Services: Restoring Lost Cryptocurrency If you've lost access to your cryptocurrency and unable to make a withdrawal, I highly recommend iBolt Cyber Hacker Bitcoin Recovery Services. Their team is skilled, professional, and efficient in recovering lost Bitcoin. They provide clear communication, maintain high security standards, and work quickly to resolve issues. Facing the stress of lost cryptocurrency, iBolt Cyber Hacker is a trusted service that will help you regain access to your funds securely and reliably. Highly recommended! Email: S u p p o r t @ ibolt cyber hack . com Cont/Whtp + 3. .9 .3. .5..0. .9. 2. 9. .0 .3. 1 .8. Website: h t t p s : / / ibolt cyber hack . com /

  • 16.09.24 00:11 marcusaustin

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  • 23.09.24 18:56 matthewshimself

    At first, I was admittedly skeptical about Worldcoin (ref: https://worldcoin.org/blog/worldcoin/this-is-worldcoin-video-explainer-series), particularly around the use of biometric data and the WLD token as a reward mechanism for it. However, after following the project closer, I’ve come to appreciate the broader vision and see the value in the underlying tech behind it. The concept of Proof of Personhood (ref: https://worldcoin.org/blog/worldcoin/proof-of-personhood-what-it-is-why-its-needed) has definitely caught my attention, and does seem like a crucial step towards tackling growing issues like bots, deepfakes, and identity fraud. Sam Altman’s vision is nothing short of ambitious, but I do think he & Alex Blania have the chops to realize it as mainstay in the global economy.

  • 01.10.24 14:54 Sinewclaudia

    I lost about $876k few months ago trading on a fake binary option investment websites. I didn't knew they were fake until I tried to withdraw. Immediately, I realized these guys were fake. I contacted Sinew Claudia world recovery, my friend who has such experience before and was able to recover them, recommended me to contact them. I'm a living testimony of a successful recovery now. You can contact the legitimate recovery company below for help and assistance. [email protected] [email protected] WhatsApp: 6262645164

  • 02.10.24 22:27 Emily Hunter

    Can those who have fallen victim to fraud get their money back? Yes, you might be able to get back what was taken from you if you fell prey to a fraud from an unregulated investing platform or any other scam, but only if you report it to the relevant authorities. With the right plan and supporting documentation, you can get back what you've lost. Most likely, the individuals in control of these unregulated platforms would attempt to convince you that what happened to your money was a sad accident when, in fact, it was a highly skilled heist. You should be aware that there are resources out there to help you if you or someone you know has experienced one of these circumstances. Do a search using (deftrecoup (.) c o m). Do not let the perpetrators of this hoaxes get away with ruining you mentally and financially.

  • 18.10.24 09:34 freidatollerud

    The growth of WIN44 in Brazil is very interesting! If you're looking for more options for online betting and casino games, I recommend checking out Casinos in Brazil. It's a reliable platform that offers a wide variety of games and provides a safe and enjoyable experience for users. It's worth checking out! https://win44.vip

  • 31.10.24 00:13 ytre89

    Can those who have fallen victim to fraud get their money back? Yes, you might be able to get back what was taken from you if you fell prey to a fraud from an unregulated investing platform or any other scam, but only if you report it to the relevant authorities. With the right plan and supporting documentation, you can get back what you've lost. Most likely, the individuals in control of these unregulated platforms would attempt to convince you that what happened to your money was a sad accident when, in fact, it was a highly skilled heist. You should be aware that there are resources out there to help you if you or someone you know has experienced one of these circumstances. Do a search using (deftrecoup (.) c o m). Do not let the perpetrators of this hoaxes get away with ruining you mentally and financially.

  • 02.11.24 14:44 diannamendoza732

    In the world of Bitcoin recovery, Pro Wizard Gilbert truly represents the gold standard. My experience with Gilbert revealed just how exceptional his methods are and why he stands out as the premier authority in this critical field. When I first encountered the complexities of Bitcoin recovery, I was daunted by the technical challenges and potential risks. Gilbert’s approach immediately distinguished itself through its precision and effectiveness. His methods are meticulously designed, combining cutting-edge techniques with an in-depth understanding of the Bitcoin ecosystem. He tackled the recovery process with a level of expertise and thoroughness that was both impressive and reassuring. What sets Gilbert’s methods apart is not just their technical sophistication but also their strategic depth. He conducts a comprehensive analysis of each case, tailoring his approach to address the unique aspects of the situation. This personalized strategy ensures that every recovery effort is optimized for success. Gilbert’s transparent communication throughout the process was invaluable, providing clarity and confidence during each stage of the recovery. The results I achieved with Pro Wizard Gilbert’s methods were remarkable. His gold standard approach not only recovered my Bitcoin but did so with an efficiency and reliability that exceeded my expectations. His deep knowledge, innovative techniques, and unwavering commitment make him the definitive expert in Bitcoin recovery. For anyone seeking a benchmark in Bitcoin recovery solutions, Pro Wizard Gilbert’s methods are the epitome of excellence. His ability to blend technical prowess with strategic insight truly sets him apart in the industry. Call: for help. You may get in touch with them at ; Email: (prowizardgilbertrecovery(@)engineer.com) Telegram ; https://t.me/Pro_Wizard_Gilbert_Recovery Homepage ; https://prowizardgilbertrecovery.info

  • 12.11.24 00:50 TERESA

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  • 17.11.24 09:31 Vivianlocke223

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  • 19.11.24 03:06 [email protected]

    My entire existence fell apart when a malevolent hacker recently gained access to my online accounts. I felt violated and extremely uneasy after discovering that the digital platforms I depended on for communication, employment, and finances had been compromised. Regaining control and restoring my digital security was an overwhelming task in the immediate aftermath. To help me navigate the difficult process of recovering my accounts and getting my peace of mind back, TRUST GEEKS HACK EXPERT came into my life as a ray of hope. They immediately put their highly skilled professionals to work, thoroughly examining the vulnerability and methodically preventing unwanted access. They guided me through each stage soothingly, explaining what was occurring and why, so I never felt lost or alone. They communicated with service providers to restore my legitimate access while skillfully navigating the complex labyrinth of account recovery procedures. My digital footprint was cleaned and strengthened against future attacks thanks to their equally amazing ability to remove any remaining evidence of the hacker's presence. However, TRUST GEEKS HACK EXPERT actual worth went beyond its technical aspects. They offered constant emotional support during the ordeal, understanding my fragility and sense of violation. My tense nerves were calmed by their comforting presence and kind comments, which served as a reminder that I wasn't alone in this struggle. With their help, I was able to reestablish my sense of security and control, which enabled me to return my attention to the significant areas of my life that had been upended. Ultimately, TRUST GEEKS HACK EXPERT all-encompassing strategy not only recovered my online accounts but also my general peace of mind, which is a priceless result for which I am incredibly appreciative of their knowledge and kindness. Make the approach and send a message to TRUST GEEKS HACK EXPERT Via Web site <> www://trustgeekshackexpert.com/-- E>mail: Trustgeekshackexpert(At)fastservice..com -- TeleGram,<> Trustgeekshackexpert

  • 19.11.24 03:07 [email protected]

    My entire existence fell apart when a malevolent hacker recently gained access to my online accounts. I felt violated and extremely uneasy after discovering that the digital platforms I depended on for communication, employment, and finances had been compromised. Regaining control and restoring my digital security was an overwhelming task in the immediate aftermath. To help me navigate the difficult process of recovering my accounts and getting my peace of mind back, TRUST GEEKS HACK EXPERT came into my life as a ray of hope. They immediately put their highly skilled professionals to work, thoroughly examining the vulnerability and methodically preventing unwanted access. They guided me through each stage soothingly, explaining what was occurring and why, so I never felt lost or alone. They communicated with service providers to restore my legitimate access while skillfully navigating the complex labyrinth of account recovery procedures. My digital footprint was cleaned and strengthened against future attacks thanks to their equally amazing ability to remove any remaining evidence of the hacker's presence. However, TRUST GEEKS HACK EXPERT actual worth went beyond its technical aspects. They offered constant emotional support during the ordeal, understanding my fragility and sense of violation. My tense nerves were calmed by their comforting presence and kind comments, which served as a reminder that I wasn't alone in this struggle. With their help, I was able to reestablish my sense of security and control, which enabled me to return my attention to the significant areas of my life that had been upended. Ultimately, TRUST GEEKS HACK EXPERT all-encompassing strategy not only recovered my online accounts but also my general peace of mind, which is a priceless result for which I am incredibly appreciative of their knowledge and kindness. Make the approach and send a message to TRUST GEEKS HACK EXPERT Via Web site <> www://trustgeekshackexpert.com/-- E>mail: Trustgeekshackexpert(At)fastservice..com -- TeleGram,<> Trustgeekshackexpert

  • 21.11.24 04:14 ronaldandre617

    Being a parent is great until your toddler figures out how to use your devices. One afternoon, I left my phone unattended for just a few minutes rookie mistake of the century. I thought I’d take a quick break, but little did I know that my curious little genius was about to embark on a digital adventure. By the time I came back, I was greeted by two shocking revelations: my toddler had somehow managed to buy a $5 dinosaur toy online and, even more alarmingly, had locked me out of my cryptocurrency wallet holding a hefty $75,000. Yes, you heard that right a dinosaur toy was the least of my worries! At first, I laughed it off. I mean, what toddler doesn’t have a penchant for expensive toys? But then reality set in. I stared at my phone in disbelief, desperately trying to guess whatever random string of gibberish my toddler had typed as a new password. Was it “dinosaur”? Or perhaps “sippy cup”? I felt like I was in a bizarre game of Password Gone Wrong. Every attempt led to failure, and soon the laughter faded, replaced by sheer panic. I was in way over my head, and my heart raced as the countdown of time ticked away. That’s when I decided to take action and turned to Digital Tech Guard Recovery, hoping they could solve the mystery that was my toddler’s handiwork. I explained my predicament, half-expecting them to chuckle at my misfortune, but they were incredibly professional and empathetic. Their confidence put me at ease, and I knew I was in good hands. Contact With WhatsApp: +1 (443) 859 - 2886  Email digital tech guard . com  Telegram: digital tech guard recovery . com  website link :: https : // digital tech guard . com Their team took on the challenge like pros, employing their advanced techniques to unlock my wallet with a level of skill I can only describe as magical. As I paced around, anxiously waiting for updates, I imagined my toddler inadvertently locking away my life savings forever. But lo and behold, it didn’t take long for Digital Tech Guard Recovery to work their magic. Not only did they recover the $75,000, but they also gave me invaluable tips on securing my wallet better like not leaving it accessible to tiny fingers! Who knew parenting could lead to such dramatic situations? Crisis averted, and I learned my lesson: always keep my devices out of reach of little explorers. If you ever find yourself in a similar predicament whether it’s tech-savvy toddlers or other digital disasters don’t hesitate to reach out to Digital Tech Guard Recovery. They saved my funds and my sanity, proving that no challenge is too great, even when it involves a toddler’s mischievous fingers!

  • 21.11.24 08:02 Emily Hunter

    If I hadn't found a review online and filed a complaint via email to support@deftrecoup. com , the people behind this unregulated scheme would have gotten away with leaving me in financial ruins. It was truly the most difficult period of my life.

  • 22.11.24 04:41 [email protected]

    I never could have imagined the nightmare of losing access to my digital wallet. All of my cryptocurrency holdings were abruptly imprisoned, inaccessible, and appeared to be lost forever following a catastrophic hardware breakdown. Years of meticulous investment and careful saving were reduced to nothing more than strings of code that I could no longer control, and I could feel the dread and sorrow that swept through me at that very instant. Thankfully, during my worst moment, I came into (TRUST GEEKS HACK EXPERT), a professional service devoted to recovering lost or inaccessible digital data. With optimism, I went out to their team of skilled technologists, laying bare the full nature of my issue. What followed was a laborious, multi-step process that required an almost surgical level of digital forensics and Bitcoin skill. In order to create a thorough profile of my wallet's contents and activities, the (TRUST GEEKS HACK EXPERT) team first thoroughly examined the transaction history and metadata connected to it. Next, they implemented a series of advanced recovery techniques, using cutting-edge software tools to bypass the access barriers that had left me locked out. The entire process was shrouded in secrecy and discretion, with the (TRUST GEEKS HACK EXPERT) team working tirelessly to protect the confidentiality of my sensitive financial information. After what felt like an eternity of nervous anticipation, the day finally arrived when I received the triumphant notification – my wallet had been successfully restored, and all of my precious digital assets had been returned to my control. The sense of relief was indescribable, as I could finally breathe easy knowing that the fruits of my financial discipline had been safeguarded. While the experience of losing access to my wallet was undoubtedly traumatic, (TRUST GEEKS HACK EXPERT) intervention allowed me to emerge from the ordeal with my cryptocurrency holdings intact, and a renewed appreciation for the importance of proactive digital asset management. You can contact Them through EMAIL: [email protected] - TELEGRAM: TRUSTGEEKSHACKEXPERT

  • 22.11.24 15:26 cliftonhandyman

    Your Lost Bitcoins Are Not Gone Forever? Enquire From iBolt Cyber Hacker iBolt Cyber Hacker is a cybersecurity service that specializes in Bitcoin and cryptocurrency recovery. Even if your Bitcoin is locked away in a scammer inaccessible wallet, they have the tools and expertise to retrieve it. Many people, including seasoned cryptocurrency investors, face the daunting possibility of never seeing their lost funds again. iBolt cyber hacker service is a potential lifeline in these situations. I understand the concerns many people might have about trusting a third-party service to recover their Bitcoin. iBolt Cyber Hacker takes security seriously, implementing encryption and stringent privacy protocols. I was assured that no sensitive data would be compromised during the recovery process. Furthermore, their reputation in the cryptocurrency community, based on positive feedback from previous clients, gave me confidence that I was in good hands. Whtp +39, 351..105, 3619 Em.ail: ibolt @ cyber- wizard. co m

  • 22.11.24 23:43 teresaborja

    all thanks to Tech Cyber Force Recovery expert assistance. As a novice in cryptocurrency, I had been carefully accumulating a modest amount of Bitcoin, meticulously safeguarding my digital wallet and private keys. However, as the adage goes, the best-laid plans can often go awry, and that's precisely what happened to me. Due to a series of technical mishaps and human errors, I found myself locked out of my Bitcoin wallet, unable to access the fruits of my digital labors. Panic set in as I frantically searched for a solution, scouring the internet for any glimmer of hope. That's when I stumbled upon the Tech Cyber Force Recovery team, a group of seasoned cryptocurrency specialists who had built a reputation for their ability to recover lost or inaccessible digital assets. Skeptical at first, I reached out, desperate for a miracle. To my utter amazement, the Tech Cyber Force Recovery experts quickly assessed my situation and devised a meticulous plan of attack. Through their deep technical knowledge, unwavering determination, and a keen eye for detail, they were able to navigate the complex labyrinth of blockchain technology, ultimately recovering my entire Bitcoin portfolio. What had once seemed like a hopeless endeavor was now a reality, and I found myself once again in possession of my digital wealth, all thanks to the incredible efforts of the Tech Cyber Force Recovery team. This experience has not only restored my faith in the cryptocurrency ecosystem. Still, it has also instilled in me a profound appreciation for the critical role that expert recovery services can play in safeguarding one's digital assets.   ENAIL < Tech cybers force recovery @ cyber services. com >   WEBSITE < ht tps : // tech cyber force recovery. info  >   TEXT < +1. 561. 726. 3697 >

  • 24.11.24 02:21 [email protected]

    I never could have imagined the nightmare of losing access to my digital wallet. All of my cryptocurrency holdings were abruptly imprisoned, inaccessible, and appeared to be lost forever following a catastrophic hardware breakdown. Years of meticulous investment and careful saving were reduced to nothing more than strings of code that I could no longer control, and I could feel the dread and sorrow that swept through me at that very instant. Thankfully, during my worst moment, I came into (TRUST GEEKS HACK EXPERT), a professional service devoted to recovering lost or inaccessible digital data. With optimism, I went out to their team of skilled technologists, laying bare the full nature of my issue. What followed was a laborious, multi-step process that required an almost surgical level of digital forensics and Bitcoin skill. In order to create a thorough profile of my wallet's contents and activities, the (TRUST GEEKS HACK EXPERT) team first thoroughly examined the transaction history and metadata connected to it. Next, they implemented a series of advanced recovery techniques, using cutting-edge software tools to bypass the access barriers that had left me locked out. The entire process was shrouded in secrecy and discretion, with the (TRUST GEEKS HACK EXPERT) team working tirelessly to protect the confidentiality of my sensitive financial information. After what felt like an eternity of nervous anticipation, the day finally arrived when I received the triumphant notification – my wallet had been successfully restored, and all of my precious digital assets had been returned to my control. The sense of relief was indescribable, as I could finally breathe easy knowing that the fruits of my financial discipline had been safeguarded. While the experience of losing access to my wallet was undoubtedly traumatic, (TRUST GEEKS HACK EXPERT) intervention allowed me to emerge from the ordeal with my cryptocurrency holdings intact, and a renewed appreciation for the importance of proactive digital asset management. You can contact Them through EMAIL: [email protected] - TELEGRAM: TRUSTGEEKSHACKEXPERT

  • 25.11.24 02:19 briankennedy

    COMMENT ON I NEED A HACKER TO RECOVER MONEY FROM BINARY TRADING. HIRE FASTFUND RECOVERY

  • 25.11.24 02:20 briankennedy

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