在 Amazon Bedrock 中创建模型评估任务

使用以下步骤使用 Amazon Bedrock 控制台创建模型评估任务。要成功完成此过程，请确保您的IAM用户、组或角色具有访问控制台的足够权限。要了解更多信息，请参阅 使用 Amazon Bedrock 控制台进行模型评估所需的权限。

此外，您要在模型评估任务中指定的任何自定义提示数据集都必须具有向 Amazon S3 存储桶添加所需的CORS权限。要了解有关添加所需CORS权限的更多信息，请参阅S3 存储桶所需的跨源资源共享 (CORS) 权限。

状态更改为 “已完成” 后，您可以查看任务的成绩单。

以下示例使用创建自动评估作业 Python.

import boto3
client = boto3.client('bedrock')

job_request = client.create_evaluation_job(
    jobName="api-auto-job-titan",
    jobDescription="two different task types",
    roleArn="arn:aws:iam::111122223333:role/role-name",
    inferenceConfig={
        "models": [
            {
                "bedrockModel": {
                    "modelIdentifier":"arn:aws:bedrock:us-west-2::foundation-model/amazon.titan-text-lite-v1",
                    "inferenceParams":"{\"temperature\":\"0.0\", \"topP\":\"1\", \"maxTokenCount\":\"512\"}"
                }

            }
        ]

    },
    outputDataConfig={
        "s3Uri":"s3://model-evaluations/outputs/"
    },
    evaluationConfig={
        "automated": {
            "datasetMetricConfigs": [
                {
                    "taskType": "QuestionAndAnswer",
                    "dataset": {
                        "name": "Builtin.BoolQ"
                    },
                    "metricNames": [
                        "Builtin.Accuracy",
                        "Builtin.Robustness"
                    ]
                }
            ]
        }
    }
)

print(job_request)

在中 AWS CLI，您可以使用help命令来查看哪些参数是必需的，以及哪些参数create-evaluation-job在中指定时是可选的 AWS CLI。

aws bedrock create-evaluation-job help

aws bedrock create-evaluation-job \
--job-name 'automatic-eval-job-cli-001' \
--role-arn 'arn:aws:iam::111122223333:role/role-name' \
--evaluation-config '{"automated": {"datasetMetricConfigs": [{"taskType": "QuestionAndAnswer","dataset": {"name": "Builtin.BoolQ"},"metricNames": ["Builtin.Accuracy","Builtin.Robustness"]}]}}' \
--inference-config '{"models": [{"bedrockModel": {"modelIdentifier":"arn:aws:bedrock:us-west-2::foundation-model/amazon.titan-text-lite-v1","inferenceParams":"{\"temperature\":\"0.0\", \"topP\":\"1\", \"maxTokenCount\":\"512\"}"}}]}' \
--output-data-config '{"s3Uri":"s3://automatic-eval-jobs/outputs"}'

以下代码示例向您展示了如何通过 for for Python 创建使用人工SDKSDK的模型评估作业。

import boto3
client = boto3.client('bedrock')

job_request = client.create_evaluation_job(
    jobName="111122223333-job-01",
    jobDescription="two different task types",
    roleArn="arn:aws:iam::111122223333:role/example-human-eval-api-role",
    inferenceConfig={
        ## You must specify and array of models
        "models": [
            {
                "bedrockModel": {
                    "modelIdentifier":"arn:aws:bedrock:us-west-2::foundation-model/amazon.titan-text-lite-v1",
                    "inferenceParams":"{\"temperature\":\"0.0\", \"topP\":\"1\", \"maxTokenCount\":\"512\"}"
                }

            },
            {
                "bedrockModel": {
                    "modelIdentifier": "anthropic.claude-v2",
                    "inferenceParams": "{\"temperature\":\"0.25\",\"top_p\":\"0.25\",\"max_tokens_to_sample\":\"256\",\"top_k\":\"1\"}"
                }
            }
        ]

    },
    outputDataConfig={
        "s3Uri":"s3://job-bucket/outputs/"
    },
    evaluationConfig={
        "human": {
        "humanWorkflowConfig": {
            "flowDefinitionArn": "arn:aws:sagemaker:us-west-2:111122223333:flow-definition/example-workflow-arn",
            "instructions": "some human eval instruction"
        },
        "customMetrics": [
            {
                "name": "IndividualLikertScale",
                "description": "testing",
                "ratingMethod": "IndividualLikertScale"
            }
        ],
        "datasetMetricConfigs": [
            {
                "taskType": "Summarization",
                "dataset": {
                    "name": "Custom_Dataset1",
                    "datasetLocation": {
                        "s3Uri": "s3://job-bucket/custom-datasets/custom-trex.jsonl"
                    }
                },
                "metricNames": [
                  "IndividualLikertScale"
                ]
            }
        ]
      }

    }
)

print(job_request)