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Qi Feng

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#artificial intelligence Preprint Oct 2026

Recall What Is Missing: Composing Evidence from Long-Term Agent Memory

Under a limited context budget, a long-term agent must recall not merely memories that are individually relevant, but evidence that is collectively sufficient for the current query. Conventional memory access retrieves, scores, and truncates memories, often spending multiple context slots on redundant facts while leavi...

Qi Feng, Ji-Cong Fan · 0 citations
#small language model Preprint Aug 2026

The Retriever Should Remember: Experience-Amortized Reranking for Long-Term Agent Memory

Experiments on long-term conversational memory show that mixed observed-and-estimated reranking improves answer accuracy over semantic retrieval by up to 6.62% and remains effective when only 17.5% of candidates receive direct LLM relevance scores, thereby substantially reducing the inference overhead of LLM reranking.

Qi Feng, Chris Ding, Ji-Cong Fan · 2 citations

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