{"type": "article", "title": "Not All Memories Are Equal: Hierarchical Collaborative Memory for Validity-Aware Retrieval in LLM Agents", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/not-all-memories-are-equal-hierarchical-collaborative-memory-for-validity-aware", "original_source": "https://arxiv.org/abs/2609.30289", "published": "2026-09-28T04:00:00+00:00", "accessed": "2026-09-28", "id": "not-all-memories-are-equal-hierarchical-collaborative-memory-for-validity-aware"}