description: LangChain Retriever Nodes

Retrievers

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