CueMem: Cue-Guided Context Reconstruction for Long-Term Conversational Memory

• URL: http://arxiv.org/abs/2609.12354v1
• Date: Fri, 11 Sep 2026 02:27:22 GMT
• Title: CueMem: Cue-Guided Context Reconstruction for Long-Term Conversational Memory
• Abstract summary: CueMem is a cue-guided framework that treats extracted memory records as retrieval cues.<n>It reconstructs query-relevant dialogue context from their source turns.<n>Experiments on LoCoMo and LongMemEval show that CueMem consistently outperforms representative long-term memory baselines.
• Score: 38.76918926805768
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Long-term conversational agents must answer user queries by recalling information from extended dialogue histories, yet directly using the full history is costly and often unreliable, while compressed memory units may lose fine-grained evidence needed for question answering. Motivated by the reconstructive view of autobiographical memory, we propose CueMem, a cue-guided framework that treats extracted memory records as retrieval cues rather than self-contained evidence and reconstructs query-relevant dialogue context from their source turns. During memory construction, CueMem extracts fine-grained memory cues from dialogue turns and links each cue to its source turn. At query time, it retrieves query-relevant cues, maps them to source-turn anchors, and expands from these anchors over a turn graph that captures temporal proximity and semantic relatedness, reconstructing a compact evidence context from the original dialogue for LLM answer generation. Experiments on LoCoMo and LongMemEval show that CueMem consistently outperforms representative long-term memory baselines. Further analyses show that graph-based context reconstruction helps recover supporting dialogue evidence while reducing query-time input tokens and latency compared with the full-history LLM setting. These results highlight retrieval cues as an effective alternative to self-contained memory evidence for long-term conversational question answering.

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