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Amazon Machine Learning
API Reference (API Version 2014-12-12)

UpdateMLModel

Updates the MLModelName and the ScoreThreshold of an MLModel.

You can use the GetMLModel operation to view the contents of the updated data element.

Request Syntax

{ "MLModelId": "string", "MLModelName": "string", "ScoreThreshold": number }

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

MLModelId

The ID assigned to the MLModel during creation.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 64.

Pattern: [a-zA-Z0-9_.-]+

Required: Yes

MLModelName

A user-supplied name or description of the MLModel.

Type: String

Length Constraints: Maximum length of 1024.

Pattern: .*\S.*|^$

Required: No

ScoreThreshold

The ScoreThreshold used in binary classification MLModel that marks the boundary between a positive prediction and a negative prediction.

Output values greater than or equal to the ScoreThreshold receive a positive result from the MLModel, such as true. Output values less than the ScoreThreshold receive a negative response from the MLModel, such as false.

Type: Float

Required: No

Response Syntax

{ "MLModelId": "string" }

Response Elements

If the action is successful, the service sends back an HTTP 200 response.

The following data is returned in JSON format by the service.

MLModelId

The ID assigned to the MLModel during creation. This value should be identical to the value of the MLModelID in the request.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 64.

Pattern: [a-zA-Z0-9_.-]+

Errors

For information about the errors that are common to all actions, see Common Errors.

InternalServerException

An error on the server occurred when trying to process a request.

HTTP Status Code: 500

InvalidInputException

An error on the client occurred. Typically, the cause is an invalid input value.

HTTP Status Code: 400

ResourceNotFoundException

A specified resource cannot be located.

HTTP Status Code: 400

Example

The following is a sample request and response of the UpdateBatchPrediction operation.

Sample Request

POST / HTTP/1.1 Host: machinelearning.<region>.<domain> x-amz-Date: <Date> Authorization: AWS4-HMAC-SHA256 Credential=<Credential>, SignedHeaders=contenttype;date;host;user-agent;x-amz-date;x-amz-target;x-amzn-requestid,Signature=<Signature> User-Agent: <UserAgentString> Content-Type: application/x-amz-json-1.1 Content-Length: <PayloadSizeBytes> Connection: Keep-Alive X-Amz-Target: AmazonML_20141212.UpdateMLModel { "MLModelId": "ml-exampleModelId", "MLModelName": "ml-exampleModelName", "ScoreThreshold": 0.8 }

Sample Response

HTTP/1.1 200 OK x-amzn-RequestId: <RequestId> Content-Type: application/x-amz-json-1.1 Content-Length: <PayloadSizeBytes> Date: <Date> {"MLModelId": "pr-exampleModelId"}

See Also

For more information about using this API in one of the language-specific AWS SDKs, see the following: