Enhancing Hybrid Retrieval With Graph Traversal Using the GraphRAG Python Package

The HybridCypherRetriever enhances hybrid search by adding a graph traversal step. It combines vector search with full-text search, then uses a specified Cypher query to retrieve additional information from the graph for each node retrieved through hybrid search. This retriever is particularly useful for answering complex and nuanced questions that require both contextualized information and precise matching of exact words or phrases. By combining vector search and graph traversal techniques, the HybridCypherRetriever provides a more comprehensive solution than either method alone, enabling users to retrieve valuable information from their Neo4j databases. The retriever can be used to answer questions like "What are the names of the actors in the movie set in 1375 in Imperial China?" and returns accurate results by combining vector search with full-text search and graph traversal.

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