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arXiv

APDMem combines four-layer memory with controller-driven drill-down to reach strong LongMemEval memory reasoning while accessing only 8% of conversations

The work introduces APDMem (Agent-controlled Progressive Disclosure Memory), which organizes conversation history into four progressively detailed layers—thematic summaries, personalized key facts, turn-level evidence notes, and raw messages—has a controller read high-level summaries first and drill into finer evidence only when needed, and uses a note synthesizer to turn retrieved evidence into a query-focused structure that consolidates facts, orders events, and flags contradictions, achieving strong long-context memory reasoning on LongMemEval while accessing only 8% of the total conversations.