Hybrid Retrieval for GraphRAG Applications Using the GraphRAG Python Package

The Neo4j GraphRAG Python package is used to build a GraphRAG application that leverages both vector search and full-text indexes. The HybridRetriever class combines the strengths of both indexing methods, using vector search for semantic similarity matching and full-text indexes for lexical similarity matching, such as dates and names. This approach enables accurate retrieval of relevant information even when user queries include specific strings or have different meanings in a wider context. By combining the capabilities of vector search and full-text indexes, the HybridRetriever class provides a more comprehensive solution for GraphRAG applications than using vector search alone. The package code is open source, and users can find it on GitHub, where they are invited to share their insights via comments or on the GraphRAG Discord channel.