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# 如何使用 SageMaker AI AutoGluon-表格
<a name="autogluon-tabular-modes"></a>

你可以使用 AutoGluon-Tabular 作为 Amazon A SageMaker I 的内置算法。下一节介绍如何在 Pyth SageMaker on 软件开发工具包中使用 AutoGluon-Tabular。有关如何在 Amazon SageMaker Studio Classic 用户界面中使用 AutoGluon-Tabular 的信息，请参阅。[SageMaker JumpStart 预训练模型](studio-jumpstart.md)
+ **使用 AutoGluon-Tabular 作为内置算法**

  使用 AutoGluon-Tabular 内置算法来构建 AutoGluon-Tabular 训练容器，如以下代码示例所示。你可以使用 AI API（如果使用 Amaz [on Pyth SageMaker on SDK](https://sagemaker.readthedocs.io/en/stable) 版本 2 则使用 `image_uris.retrieve` AP SageMaker I）自动发现 AutoGluon-Tabular 内置算法图像 UR `get_image_uri` I。

  指定 AutoGluon-Tabular 图像 URI 后，您可以使用 AutoGluon-Tabular 容器使用 AI Estimator AP SageMaker I 构造估计器并启动训练作业。 AutoGluon-Tabular 内置算法在脚本模式下运行，但训练脚本是为你提供的，无需替换。如果您在使用脚本模式创建 SageMaker 训练作业方面有丰富的经验，则可以合并自己的 AutoGluon-Tabular 训练脚本。

  ```
  from sagemaker import image_uris, model_uris, script_uris
  
  train_model_id, train_model_version, train_scope = "autogluon-classification-ensemble", "*", "training"
  training_instance_type = "ml.p3.2xlarge"
  
  # Retrieve the docker image
  train_image_uri = image_uris.retrieve(
      region=None,
      framework=None,
      model_id=train_model_id,
      model_version=train_model_version,
      image_scope=train_scope,
      instance_type=training_instance_type
  )
  
  # Retrieve the training script
  train_source_uri = script_uris.retrieve(
      model_id=train_model_id, model_version=train_model_version, script_scope=train_scope
  )
  
  train_model_uri = model_uris.retrieve(
      model_id=train_model_id, model_version=train_model_version, model_scope=train_scope
  )
  
  # Sample training data is available in this bucket
  training_data_bucket = f"jumpstart-cache-prod-{aws_region}"
  training_data_prefix = "training-datasets/tabular_binary/"
  
  training_dataset_s3_path = f"s3://{training_data_bucket}/{training_data_prefix}/train"
  validation_dataset_s3_path = f"s3://{training_data_bucket}/{training_data_prefix}/validation"
  
  output_bucket = sess.default_bucket()
  output_prefix = "jumpstart-example-tabular-training"
  
  s3_output_location = f"s3://{output_bucket}/{output_prefix}/output"
  
  from sagemaker import hyperparameters
  
  # Retrieve the default hyperparameters for training the model
  hyperparameters = hyperparameters.retrieve_default(
      model_id=train_model_id, model_version=train_model_version
  )
  
  # [Optional] Override default hyperparameters with custom values
  hyperparameters[
      "auto_stack"
  ] = "True"
  print(hyperparameters)
  
  from sagemaker.estimator import Estimator
  from sagemaker.utils import name_from_base
  
  training_job_name = name_from_base(f"built-in-algo-{train_model_id}-training")
  
  # Create SageMaker Estimator instance
  tabular_estimator = Estimator(
      role=aws_role,
      image_uri=train_image_uri,
      source_dir=train_source_uri,
      model_uri=train_model_uri,
      entry_point="transfer_learning.py",
      instance_count=1,
      instance_type=training_instance_type,
      max_run=360000,
      hyperparameters=hyperparameters,
      output_path=s3_output_location
  )
  
  # Launch a SageMaker Training job by passing the S3 path of the training data
  tabular_estimator.fit(
      {
          "training": training_dataset_s3_path,
          "validation": validation_dataset_s3_path,
      }, logs=True, job_name=training_job_name
  )
  ```

  有关如何将 AutoGluon-Tabular 设置为内置算法的更多信息，请参阅以下笔记本示例。这些示例中使用的任何 S3 存储桶都必须与用于运行它们的笔记本实例位于同一 AWS 区域。
  + [使用 Amazon A SageMaker I 进行表格分类 AutoGluon-表格算法](https://github.com/aws/amazon-sagemaker-examples/blob/main/introduction_to_amazon_algorithms/autogluon_tabular/Amazon_Tabular_Classification_AutoGluon.ipynb)
  + [使用 Amazon A SageMaker I 进行表格回归 AutoGluon ——表格算法](https://github.com/aws/amazon-sagemaker-examples/blob/main/introduction_to_amazon_algorithms/autogluon_tabular/Amazon_Tabular_Regression_AutoGluon.ipynb)