AWS::Bedrock::DataSource ChunkingConfiguration

Details about how to chunk the documents in the data source. A chunk refers to an excerpt from a data source that is returned when the knowledge base that it belongs to is queried.

Syntax

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

JSON

{
  "ChunkingStrategy" : String,
  "FixedSizeChunkingConfiguration" : FixedSizeChunkingConfiguration,
  "HierarchicalChunkingConfiguration" : HierarchicalChunkingConfiguration,
  "SemanticChunkingConfiguration" : SemanticChunkingConfiguration
}

YAML

  ChunkingStrategy: String
  FixedSizeChunkingConfiguration: 
    FixedSizeChunkingConfiguration
  HierarchicalChunkingConfiguration: 
    HierarchicalChunkingConfiguration
  SemanticChunkingConfiguration: 
    SemanticChunkingConfiguration

Properties

ChunkingStrategy

Knowledge base can split your source data into chunks. A chunk refers to an excerpt from a data source that is returned when the knowledge base that it belongs to is queried. You have the following options for chunking your data. If you opt for NONE, then you may want to pre-process your files by splitting them up such that each file corresponds to a chunk.

• FIXED_SIZE – Amazon Bedrock splits your source data into chunks of the approximate size that you set in the fixedSizeChunkingConfiguration.

• HIERARCHICAL – Split documents into layers of chunks where the first layer contains large chunks, and the second layer contains smaller chunks derived from the first layer.

• SEMANTIC – Split documents into chunks based on groups of similar content derived with natural language processing.

• NONE – Amazon Bedrock treats each file as one chunk. If you choose this option, you may want to pre-process your documents by splitting them into separate files.

Required: Yes

Type: String

Allowed values: FIXED_SIZE | NONE | HIERARCHICAL | SEMANTIC

Update requires: Replacement

FixedSizeChunkingConfiguration

Configurations for when you choose fixed-size chunking. If you set the chunkingStrategy as NONE, exclude this field.

Required: No

Type: FixedSizeChunkingConfiguration

Update requires: Replacement

HierarchicalChunkingConfiguration

Settings for hierarchical document chunking for a data source. Hierarchical chunking splits documents into layers of chunks where the first layer contains large chunks, and the second layer contains smaller chunks derived from the first layer.

Required: No

Type: HierarchicalChunkingConfiguration

Update requires: Replacement

SemanticChunkingConfiguration

Settings for semantic document chunking for a data source. Semantic chunking splits a document into into smaller documents based on groups of similar content derived from the text with natural language processing.

Required: No

Type: SemanticChunkingConfiguration

Update requires: Replacement