Simple retrieval rivals complex memory systems on conversation benchmarks

Raw-history retrieval with reranking led the compared memory systems in six of seven benchmark-model settings, highlighting the value of preserving supporting evidence.

Independent
Zhengye Bao · Shengtao Zhang · Haokai Zhang · Shiqi Lou · Muning Wen · Minnan Luo
Research Digest··2 min read
Bao et al.

The authors built Raw-RAG using dense retrieval, which searches by semantic similarity, followed by a cross-encoder reranker that scores candidate passages against the question.

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