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New research explores advanced memory systems for LLM agents · 3 sources tracked

Three new research papers explore advancements in memory systems for large language model (LLM) agents. The first paper, 'HasMem,' introduces a method for adaptive memory softening to improve long-term recall and context compression, achieving high F1 scores on reconstruction probes and LongMemEval-S. The second paper, 'MemHarm,' focuses on the severity of memory attacks, formalizing 'counterfactual memory regret' and demonstrating that optimizing for severity, rather than just success, leads to greater downstream loss. The third paper, 'Retrieved but Not Delivered,' investigates the 'delivery' stage of multimodal memory, proposing 'DeliverMem' to optimize how retrieved information reaches the model, significantly improving accuracy on benchmarks like MemLens and DMV-Bench. AI

IMPACT These advancements in memory management and delivery could lead to more capable and persistent LLM agents for long-horizon tasks and personalized interactions.

RANK_REASON Three distinct academic papers detailing novel methods for LLM agent memory systems.

Read on arXiv cs.AI →

AI-generated summary · Google Gemini · from 18 sources. How we write summaries →

New research explores advanced memory systems for LLM agents · 3 sources tracked

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COVERAGE [18]

  1. arXiv cs.AI TIER_1 English(EN) · Guanghui Min, Liang Wu, Mingjia Shi, Yinhan He, Mayank Darbari, Liangjie Hong, Chen Chen ·

    Adapting Context Compression for Long-Horizon Agents with Counterfactual Continuations

    arXiv:2609.36526v1 Announce Type: cross Abstract: Long-horizon agents require context compression to manage growing interaction histories. Compression quality, however, is ultimately determined by downstream execution. Existing prompt-adaptation methods infer compression errors b…

  2. arXiv cs.AI TIER_1 English(EN) · Yuyou Zhang, Yunbei Zhang, Miao Li, Janet Wang, Zijian Jin, Shilong Liu, Ding Zhao ·

    Simple Agentic Memory for Generalist Robot Policies

    arXiv:2609.36595v1 Announce Type: cross Abstract: Visual-memory systems commonly retain or compress past observations. Robot control additionally requires interaction-derived state that no individual frame may explicitly represent, such as persistent identity relations, accumulat…

  3. arXiv cs.CL TIER_1 English(EN) · Jiaming Tang, Mingyan Liu, Armin Sarabi ·

    Learning What to Remember: Long-horizon Counterfactual Memory Optimization

    arXiv:2609.37930v1 Announce Type: new Abstract: Persistent textual memory allows language models to carry information across long interactions, but learning what to remember is fundamentally a credit-assignment problem. A memory rewrite may only become useful many steps later, wh…

  4. arXiv cs.AI TIER_1 English(EN) · Hongjun Liu, Chen Zhao ·

    Memory Is a Derivation: The Distributed-Evidence Paradox in Long-Term Agents

    arXiv:2609.36130v1 Announce Type: new Abstract: Long-running LLM agents compress past interactions into persistent memories that may be reused as premises for later tasks. This creates a distinct derivation problem: whether the memory actually follows from what the interaction hi…

  5. arXiv cs.AI TIER_1 English(EN) · Mengkun Liang, Haoran Qiang, Guannan Liu, Junjie Wu ·

    UpliftMem: Learning Set-Level Uplift for Agent Memory Retrieval

    arXiv:2609.36805v1 Announce Type: new Abstract: Large language model (LLM) agents reuse external memory to guide new tasks, but effective retrieval requires learning which memory sets improve execution. Such learning relies on costly outcome feedback: ordinary retrieval observes …

  6. arXiv cs.AI TIER_1 English(EN) · Haohao Qu, Yongcheng Jing, Chun Hin Chan, Shanru Lin, Wenqi Fan, Dacheng Tao ·

    ReMem: Rethinking Perception and Memory in Long-Context Recommendation Agents

    arXiv:2609.37311v1 Announce Type: new Abstract: Recent Recommendation Agents (RecAgents) offer a promising alternative by shifting recommendation to an active, user-side paradigm, where generative agents autonomously perceive external platforms, reason over user preferences, and …

  7. arXiv cs.AI TIER_1 English(EN) · Shanwen Mao, Mingming Li, Hao Zhang, Zhiheng Li, Yige Wang, Penghua Yu, Junxiong Zhu ·

    How Can Recommendation Feedback Evolve Agent Memory?

    arXiv:2609.37544v1 Announce Type: new Abstract: Content-generation agents continuously receive impressions, clicks, conversions, and negative feedback from recommendation systems, providing real-world outcome signals for memory evolution. However, these signals are delayed and no…

  8. arXiv cs.AI TIER_1 English(EN) · Shantanu Dixit, Anson Bastos, Xuchao Zhang, Chetan Bansal, Saravan Rajmohan ·

    FOCUS: Training-Free Decision-Preserving Context Compression for LLM Agents

    arXiv:2609.37590v1 Announce Type: new Abstract: LLM agents accumulate interaction histories that grow linearly with task length, causing quadratic inference cost scaling and performance degradation from attention dilution. Existing context-compression methods learn what to discar…

  9. arXiv cs.AI TIER_1 English(EN) · Quanquan Li, Hongbo Zhang, Yihe Chi, Liuyang Song, Jingyu Li, Yuxiang Huang, Hongzhen Zhang, Guitao Cao ·

    When Successful Memories Mislead Embodied Agents:Memory Adaption For Task-Conditioned Execution

    arXiv:2609.35808v1 Announce Type: cross Abstract: Experience reuse can reduce repeated exploration in embodied agents, but a trajectory that succeeded previously may be unsuitable for the current execution context. Existing memory systems pri marily optimize construction and retr…

  10. arXiv cs.IR (Information Retrieval) TIER_1 English(EN) · Dacheng Tao ·

    ReMem: Rethinking Perception and Memory in Long-Context Recommendation Agents

    Recent Recommendation Agents (RecAgents) offer a promising alternative by shifting recommendation to an active, user-side paradigm, where generative agents autonomously perceive external platforms, reason over user preferences, and execute decisions. However, existing RecAgents s…

  11. arXiv cs.AI TIER_1 English(EN) · Zihong He, Junxiao Shen, Chen Liang, Hai-Ning Liang ·

    HasMem: Hard-Origin Adaptively Softened Memory for Long-Term LLM Agents

    arXiv:2609.30797v1 Announce Type: new Abstract: Text-based memory and context compression support reuse of past interactions. Resizing continuous memory changes the input to a frozen LLM, coupling capacity allocation with readout. We propose Hard-Origin Adaptively Softened Memory…

  12. Hugging Face Daily Papers TIER_1 English(EN) ·

    EpiCon: Collective Agent Learning through Co-Evolving Multimodal Memory

    Agents can learn from past executions, but enabling different agents to reuse and build on one another's experience remains challenging. We introduce EpiCon, a shared multimodal memory framework for agent collective learning without updating host model parameters. EpiCon links qu…

  13. Hugging Face Daily Papers TIER_1 English(EN) ·

    VideoLoop: Looped Working Memory Against Semantic Thrashing in Long-Form Video Agents

    Long-form video understanding requires multimodal agents to iteratively gather evidence over many reasoning steps. However, most existing agentic methods suffer from semantic thrashing: as append-only working memory grows, attention to key evidence collapses, and the agent loses …

  14. Hugging Face Daily Papers TIER_1 English(EN) ·

    From Attack Success to Attack Severity: Counterfactual Memory Attacks on LLM Agents

    As LLM agents increasingly rely on persistent memory for long-horizon and personalized behavior, they can retain and reuse information across interactions, but this also creates a lasting channel through which malicious memory writes can influence future behavior. Persistent-memo…

  15. arXiv cs.IR (Information Retrieval) TIER_1 English(EN) · Silvio Bacci ·

    Retrieved but Not Delivered: Multimodal Memory Delivery for Long-Term Agents

    Work on memory for multimodal agents optimizes what is written, updated and retrieved. Between retrieval and the answer, however, is a stage that multimodal memory evaluations do not isolate: what of the retrieved memory reaches the model, and in what form. We call it delivery, a…

  16. arXiv cs.CV TIER_1 English(EN) · Jinfa Huang, Jianming Xu, Jingyang Lin, Zhengyuan Yang, Jiebo Luo ·

    VideoLoop: Looped Working Memory Against Semantic Thrashing in Long-Form Video Agents

    arXiv:2609.38119v1 Announce Type: new Abstract: Long-form video understanding requires multimodal agents to iteratively gather evidence over many reasoning steps. However, most existing agentic methods suffer from semantic thrashing: as append-only working memory grows, attention…

  17. arXiv cs.CV TIER_1 English(EN) · Sean Hardesty Lewis, Zuyi Guo, Benwang Chen, Zirui Liu, Hongyi Lin, Heye Huang ·

    SafeVantage: Vantage-Aware Memory for Reliable Embodied Decisions

    arXiv:2609.36906v1 Announce Type: new Abstract: Reliable embodied decisions under partial observability require informative observations and sufficient supporting evidence. However, semantic scores alone do not reveal which viewpoints justify a claim or where additional evidence …

  18. arXiv cs.CV TIER_1 English(EN) · Ziyun Zeng, Hang Hua, Shaden Alshammari, Rogerio Feris, William T. Freeman, Jiebo Luo ·

    EpiCon: Collective Agent Learning through Co-Evolving Multimodal Memory

    arXiv:2609.37923v1 Announce Type: new Abstract: Agents can learn from past executions, but enabling different agents to reuse and build on one another's experience remains challenging. We introduce EpiCon, a shared multimodal memory framework for agent collective learning without…