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Long-term memory is one of the key factors influencing the reasoning capabilities of Large Language Model Agents (LLM Agents). Incorporating a memory mechanism that effectively integrates past interactions can significantly enhance…

Computation and Language · Computer Science 2025-08-01 Haoran Sun , Shaoning Zeng

Long-term memory is a critical challenge for Large Language Model agents, as fixed context windows cannot preserve coherence across extended interactions. Existing memory systems represent conversation history as unstructured embedding…

Computation and Language · Computer Science 2026-04-21 Jinchang Zhu , Jindong Li , Cheng Zhang , Jiahong Liu , Menglin Yang

Large language model (LLM) agents increasingly rely on external memory to support long-horizon interaction, personalized assistance, and multi-step reasoning. However, existing memory systems still face three core challenges: they often…

Computation and Language · Computer Science 2026-04-30 Shannan Yan , Jingchen Ni , Leqi Zheng , Jiajun Zhang , Peixi Wu , Dacheng Yin , Jing Lyu , Chun Yuan , Fengyun Rao

Long-term memory is critical for dialogue systems that support continuous, sustainable, and personalized interactions. However, existing methods rely on continuous summarization or OpenIE-based graph construction paired with fixed…

Computation and Language · Computer Science 2026-04-09 Yijie Zhong , Yunfan Gao , Haofen Wang

Open-domain dialogue systems have seen remarkable advancements with the development of large language models (LLMs). Nonetheless, most existing dialogue systems predominantly focus on brief single-session interactions, neglecting the…

Computation and Language · Computer Science 2025-02-14 Hao Li , Chenghao Yang , An Zhang , Yang Deng , Xiang Wang , Tat-Seng Chua

To support long-term interaction in complex environments, LLM agents require memory systems that manage historical experiences. Existing approaches either retain full interaction histories via passive context extension, leading to…

Artificial Intelligence · Computer Science 2026-01-30 Jiaqi Liu , Yaofeng Su , Peng Xia , Siwei Han , Zeyu Zheng , Cihang Xie , Mingyu Ding , Huaxiu Yao

Large Language Models (LLMs) are constrained by their inability to process lengthy inputs, resulting in the loss of critical historical information. To address this limitation, in this paper, we propose the Self-Controlled Memory (SCM)…

Computation and Language · Computer Science 2025-03-19 Bing Wang , Xinnian Liang , Jian Yang , Hui Huang , Shuangzhi Wu , Peihao Wu , Lu Lu , Zejun Ma , Zhoujun Li

Memory is critical for enabling large language model (LLM) based agents to maintain coherent behavior over long-horizon interactions. However, existing agent memory systems suffer from two key gaps: they rely on a one-size-fits-all memory…

Artificial Intelligence · Computer Science 2026-02-17 Mingfei Lu , Mengjia Wu , Feng Liu , Jiawei Xu , Weikai Li , Haoyang Wang , Zhengdong Hu , Ying Ding , Yizhou Sun , Jie Lu , Yi Zhang

Long-term conversational agents require effective memory management to handle dialogue histories that exceed the context window of large language models (LLMs). Existing methods based on fact extraction or summarization reduce redundancy…

Computation and Language · Computer Science 2025-09-26 Yaxiong Wu , Yongyue Zhang , Sheng Liang , Yong Liu

Large Language Models face significant challenges in maintaining coherent interactions over extended dialogues due to their limited contextual memory. This limitation often leads to fragmented exchanges and reduced relevance in responses,…

Machine Learning · Computer Science 2025-06-24 Haseeb Ullah Khan Shinwari , Muhammad Usama

Long-term memory is essential for conversational agents to maintain coherence, track persistent tasks, and provide personalized interactions across extended dialogues. However, existing approaches as Retrieval-Augmented Generation (RAG) and…

Computation and Language · Computer Science 2026-04-13 Juwei Yue , Chuanrui Hu , Jiawei Sheng , Zuyi Zhou , Wenyuan Zhang , Tingwen Liu , Li Guo , Yafeng Deng

Memory data are ubiquitous in Large Language Model (LLM)-based agents (e.g., OpenClaw and Manus). A few recent works have attempted to exploit agents'memory for improving their performance on the question-answering (QA) task, but they lack…

Computation and Language · Computer Science 2026-05-18 Jiawei Yu , Yixiang Fang , Xilin Liu , Yuchi Ma

Research on large language models (LLMs) has shown remarkable performance in domains such as mathematics, programming, and literary creation. However, most studies have focused on semantic memory-based question answering, neglecting LLMs'…

Computation and Language · Computer Science 2025-02-25 WenTao Liu , Ruohua Zhang , Aimin Zhou , Feng Gao , JiaLi Liu

This paper addresses the limitations of large language models in understanding long-term context. It proposes a model architecture equipped with a long-term memory mechanism to improve the retention and retrieval of semantic information…

Computation and Language · Computer Science 2025-05-30 Yue Xing , Tao Yang , Yijiashun Qi , Minggu Wei , Yu Cheng , Honghui Xin

Existing large language models (LLMs) can only afford fix-sized inputs due to the input length limit, preventing them from utilizing rich long-context information from past inputs. To address this, we propose a framework, Language Models…

Computation and Language · Computer Science 2023-06-13 Weizhi Wang , Li Dong , Hao Cheng , Xiaodong Liu , Xifeng Yan , Jianfeng Gao , Furu Wei

Large language model (LLM) agents demonstrate strong performance in short-text contexts but often underperform in extended dialogues due to inefficient memory management. Existing approaches face a fundamental trade-off between efficiency…

Artificial Intelligence · Computer Science 2026-05-04 Xiaochen Zhao , Kaikai Wang , Xiaowen Zhang , Chen Yao , Aili Wang

To deliver coherent and personalized experiences in long-term conversations, existing approaches typically perform retrieval augmented response generation by constructing memory banks from conversation history at either the turn-level,…

Computation and Language · Computer Science 2025-03-04 Zhuoshi Pan , Qianhui Wu , Huiqiang Jiang , Xufang Luo , Hao Cheng , Dongsheng Li , Yuqing Yang , Chin-Yew Lin , H. Vicky Zhao , Lili Qiu , Jianfeng Gao

Large Language Models (LLMs) are increasingly deployed as long-term interactive agents, yet their limited context windows make it difficult to sustain coherent behavior over extended interactions. Existing memory systems often store…

Artificial Intelligence · Computer Science 2026-01-12 Chuanrui Hu , Xingze Gao , Zuyi Zhou , Dannong Xu , Yi Bai , Xintong Li , Hui Zhang , Tong Li , Chong Zhang , Lidong Bing , Yafeng Deng

Long-term conversational agents need memory systems that capture relationships between events, not merely isolated facts, to support temporal reasoning and multi-hop question answering. Current approaches face a fundamental trade-off: flat…

Computation and Language · Computer Science 2026-04-24 Buqiang Xu , Yijun Chen , Jizhan Fang , Ruobin Zhong , Yunzhi Yao , Yuqi Zhu , Lun Du , Shumin Deng

Large language models (LLMs) have achieved impressive linguistic capabilities. However, a key limitation persists in their lack of human-like memory faculties. LLMs exhibit constrained memory retention across sequential interactions,…

Computation and Language · Computer Science 2024-05-29 Jing Guo , Nan Li , Jianchuan Qi , Hang Yang , Ruiqiao Li , Yuzhen Feng , Si Zhang , Ming Xu