# TrainingMetrics
<a name="API_connect-customer-profiles_TrainingMetrics"></a>

Contains metrics and performance indicators from the training of a recommender model.

## Contents
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 ** Metrics **   <a name="connect-Type-connect-customer-profiles_TrainingMetrics-Metrics"></a>
A collection of performance metrics and statistics from the training process.  
Type: String to double map  
Valid Keys: `hit | coverage | recall | popularity | freshness | similarity | mean_reciprocal_rank_at_25 | normalized_discounted_cumulative_gain_at_5 | normalized_discounted_cumulative_gain_at_10 | normalized_discounted_cumulative_gain_at_25 | precision_at_5 | precision_at_10 | precision_at_25`   
Required: No

 ** Time **   <a name="connect-Type-connect-customer-profiles_TrainingMetrics-Time"></a>
The timestamp when these training metrics were recorded.  
Type: Timestamp  
Required: No

## See Also
<a name="API_connect-customer-profiles_TrainingMetrics_SeeAlso"></a>

For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/customer-profiles-2020-08-15/TrainingMetrics) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/customer-profiles-2020-08-15/TrainingMetrics) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/customer-profiles-2020-08-15/TrainingMetrics)