VolcengineRerank#

class langchain_community.document_compressors.volcengine_rerank.VolcengineRerank[source]#

Document compressor that uses Volcengine Rerank API.

Create a new model by parsing and validating input data from keyword arguments.

Raises [ValidationError][pydantic_core.ValidationError] if the input data cannot be validated to form a valid model.

self is explicitly positional-only to allow self as a field name.

param ak: str | None = None#: Access Key ID. https://www.volcengine.com/docs/84313/1254553

param client: Any = None#: Volcengine client to use for compressing documents.

param host: str = 'cn-beijing'#: https://www.volcengine.com/docs/84313/1254488.

param region: str = 'api-vikingdb.volces.com'#: https://www.volcengine.com/docs/84313/1254488.

param sk: str | None = None#: Secret Access Key. https://www.volcengine.com/docs/84313/1254553

async acompress_documents(documents: Sequence[Document], query: str, callbacks: list[BaseCallbackHandler] | BaseCallbackManager | None = None) → Sequence[Document]#

Async compress retrieved documents given the query context.

Parameters:

documents (Sequence[Document]) – The retrieved documents.
query (str) – The query context.
callbacks (list[BaseCallbackHandler] | BaseCallbackManager | None) – Optional callbacks to run during compression.

Returns:

The compressed documents.

Return type:

Sequence[Document]

compress_documents(documents: Sequence[Document], query: str, callbacks: list[BaseCallbackHandler] | BaseCallbackManager | None = None) → Sequence[Document][source]#

Compress documents using Volcengine’s rerank API.

Parameters:

documents (Sequence[Document]) – A sequence of documents to compress.
query (str) – The query to use for compressing the documents.
callbacks (list[BaseCallbackHandler] | BaseCallbackManager | None) – Callbacks to run during the compression process.

Returns:

A sequence of compressed documents.

Return type:

Sequence[Document]

rerank(documents: Sequence[str | Document | dict], query: str, *, top_n: int | None = -1) → List[Dict[str, Any]][source]#

Returns an ordered list of documents ordered by their relevance to the provided query.

Parameters:

query (str) – The query to use for reranking.
documents (Sequence[str | Document | dict]) – A sequence of documents to rerank.
top_n (int | None) – The number of results to return. If None returns all results. Defaults to self.top_n.

Return type:

List[Dict[str, Any]]

Examples using VolcengineRerank