Knowledge-Graph-Based-Hybrid-RAG-System

safishamsi/Knowledge-Graph-Based-Hybrid-RAG-System

Knowledge Graph-RAG system using Neo4j, LangChain, LangGraph, Claude-3.5-Sonnet. Hybrid retrieval: SBERT embeddings + graph traversal + BM25. 61K papers, 190K authors from Scopus. 50% NDCG improvement, 57% bias reduction. Includes notebooks, evaluation scripts, benchmark queries. Python/Jupyter.