AIBullisharXiv – CS AI · Mar 26/1012
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Democratizing GraphRAG: Linear, CPU-Only Graph Retrieval for Multi-Hop QA
Researchers present SPRIG, a CPU-only GraphRAG system that eliminates expensive LLM-based graph construction and GPU requirements for multi-hop question answering. The system uses lightweight NER-driven co-occurrence graphs with Personalized PageRank, achieving comparable performance while reducing computational costs by 28%.