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# AWS::Bedrock::FlowVersion VectorSearchRerankingConfiguration
<a name="aws-properties-bedrock-flowversion-vectorsearchrerankingconfiguration"></a>

Configuration for reranking vector search results to improve relevance. Reranking applies additional relevance models to reorder the initial vector search results based on more sophisticated criteria.

## Syntax
<a name="aws-properties-bedrock-flowversion-vectorsearchrerankingconfiguration-syntax"></a>

To declare this entity in your CloudFormation template, use the following syntax:

### JSON
<a name="aws-properties-bedrock-flowversion-vectorsearchrerankingconfiguration-syntax.json"></a>

```
{
  "[BedrockRerankingConfiguration](#cfn-bedrock-flowversion-vectorsearchrerankingconfiguration-bedrockrerankingconfiguration)" : VectorSearchBedrockRerankingConfiguration,
  "[Type](#cfn-bedrock-flowversion-vectorsearchrerankingconfiguration-type)" : String
}
```

### YAML
<a name="aws-properties-bedrock-flowversion-vectorsearchrerankingconfiguration-syntax.yaml"></a>

```
  [BedrockRerankingConfiguration](#cfn-bedrock-flowversion-vectorsearchrerankingconfiguration-bedrockrerankingconfiguration): 
    VectorSearchBedrockRerankingConfiguration
  [Type](#cfn-bedrock-flowversion-vectorsearchrerankingconfiguration-type): String
```

## Properties
<a name="aws-properties-bedrock-flowversion-vectorsearchrerankingconfiguration-properties"></a>

`BedrockRerankingConfiguration`  <a name="cfn-bedrock-flowversion-vectorsearchrerankingconfiguration-bedrockrerankingconfiguration"></a>
Configuration for using Amazon Bedrock foundation models to rerank search results. This is required when the reranking type is set to BEDROCK.  
*Required*: No  
*Type*: [VectorSearchBedrockRerankingConfiguration](aws-properties-bedrock-flowversion-vectorsearchbedrockrerankingconfiguration.md)  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)

`Type`  <a name="cfn-bedrock-flowversion-vectorsearchrerankingconfiguration-type"></a>
The type of reranking to apply to vector search results. Currently, the only supported value is BEDROCK, which uses Amazon Bedrock foundation models for reranking.  
*Required*: Yes  
*Type*: String  
*Allowed values*: `BEDROCK_RERANKING_MODEL`  
*Update requires*: [No interruption](https://docs.aws.amazon.com/AWSCloudFormation/latest/UserGuide/using-cfn-updating-stacks-update-behaviors.html#update-no-interrupt)