Retrievers

LangChain Retriever Nodes

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Retriever nodes return documents given an unstructured query. It is more general than a vector store. A retriever does not need to be able to store documents, only to return (or retrieve) them.

Retriever Nodes:

• Cohere Rerank Retriever

• Embeddings Filter Retriever

• HyDE Retriever

• LLM Filter Retriever

• Multi Query Retriever

• Prompt Retriever

• Reciprocal Rank Fusion Retriever

• Similarity Score Threshold Retriever

• Vector Store Retriever

• Voyage AI Rerank Retriever