SAG2: Embedding-Free Multi-Hop Retrieval with BM25 and JEV
Strong multi-hop retrieval should be practical to deploy without expensive corpus preparation or complex database infrastructure. We present SAG2, an embedding-free retrieval architecture built around a single SQLite database, BM25, and contextual evidence decisions from JEV. SAG2 follows the query-time association pri...
Yu-Chao Wu
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