ShardMemo: Scope-Before-Routing for Agentic Memory Retrieval
SHARD-MEMO is presented, an agentic memory system built on scope-before-routing: metadata predicates first identify the admissible shards, and a learned router then selects a small number of them for shard-local approximate nearest neighbor retrieval, separating hard admissibility from learned relevance ranking.
Yang Zhao, Chengxiao Dai, Mengyi Kou et al.
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