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Large language models deployed as autonomous agents face critical memory limitations, lacking selective forgetting mechanisms that lead to either catastrophic forgetting at context boundaries or information overload within them. While human…

Artificial Intelligence · Computer Science 2026-02-09 Lei Wei , Xiao Peng , Xu Dong , Niantao Xie , Bin Wang

Agentic memory systems have become critical for enabling LLM agents to maintain long-term context and retrieve relevant information efficiently. However, existing memory frameworks suffer from a fundamental limitation: they perform…

Computation and Language · Computer Science 2026-01-14 Anxin Tian , Yiming Li , Xing Li , Hui-Ling Zhen , Lei Chen , Xianzhi Yu , Zhenhua Dong , Mingxuan Yuan

Large Language Models (LLMs) exhibit remarkable capabilities but suffer from apparent precision loss, reframed here as information spreading. This reframing shifts the problem from computational precision to an information-theoretic…

Machine Learning · Computer Science 2025-07-02 Christopher James Augeri

Recently, integrating visual foundation models into large language models (LLMs) to form video understanding systems has attracted widespread attention. Most of the existing models compress diverse semantic information within the whole…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Dingxin Cheng , Mingda Li , Jingyu Liu , Yongxin Guo , Bin Jiang , Qingbin Liu , Xi Chen , Bo Zhao

Recent advancements in Large Language Models (LLMs) have yielded remarkable success across diverse fields. However, handling long contexts remains a significant challenge for LLMs due to the quadratic time and space complexity of attention…

Computation and Language · Computer Science 2024-09-02 Weijie Liu , Zecheng Tang , Juntao Li , Kehai Chen , Min Zhang

To enable reliable long-term interaction, LLM agents require a memory system that can faithfully store, efficiently retrieve, and deeply reason over accumulated dialogue history. Most existing methods adopt an extracted fact based paradigm:…

Computation and Language · Computer Science 2026-05-20 Jingwei Sun , Jianing Zhu , Jiangchao Yao , Tongliang Liu , Bo Han

As a pivotal task in data lake management, joinable table discovery has attracted widespread interest. While existing language model-based methods achieve remarkable performance by combining offline column representation learning with…

Computation and Language · Computer Science 2026-01-06 Shiyuan Liu , Jianwei Wang , Xuemin Lin , Lu Qin , Wenjie Zhang , Ying Zhang

Long-term conversational memory requires retrieving evidence scattered across multiple sessions, yet single-pass retrieval fails on temporal and multi-hop questions. Existing iterative methods refine queries via generated content or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-01 Yuyang Li , Yime He , Zeyu Zhang , Dong Gong

Effective memory management is essential for large language model (LLM) agents handling long-term interactions. Current memory frameworks typically treat agents as passive "recorders" and retrieve information without understanding its…

Computation and Language · Computer Science 2026-03-03 Xiaohui Zhang , Zequn Sun , Chengyuan Yang , Yaqin Jin , Yazhong Zhang , Wei Hu

Retrieval-Augmented Generation (RAG) is widely used to mitigate hallucinations of Large Language Models (LLMs) by leveraging external knowledge. While effective for simple queries, traditional RAG systems struggle with large-scale,…

Computation and Language · Computer Science 2025-11-11 Luyao Zhuang , Shengyuan Chen , Yilin Xiao , Huachi Zhou , Yujing Zhang , Hao Chen , Qinggang Zhang , Xiao Huang

Long-term memory is becoming a central bottleneck for language agents. Exsting RAG and GraphRAG systems largely treat memory graphs as static retrieval middleware, which limits their ability to recover complete evidence chains from partial…

Artificial Intelligence · Computer Science 2026-05-13 Juntong Wang , Haoyue Zhao , guanghui Pan , Xiyuan Wang , Yanbo Wang , Qiyan Deng , Muhan Zhang

Retrieval-Augmented Generation (RAG) plays a crucial role in grounding Large Language Models by leveraging external knowledge, whereas the effectiveness is often compromised by the retrieval of contextually flawed or incomplete information.…

Artificial Intelligence · Computer Science 2025-11-13 Yaoze Zhang , Rong Wu , Pinlong Cai , Xiaoman Wang , Guohang Yan , Song Mao , Ding Wang , Botian Shi

We present SpatialMem, a memory-centric system for long-horizon, language-grounded retrieval and QA from egocentric video, where metric 3D serves as an interpretable indexing scaffold rather than an explicit mapping objective. Starting from…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Xinyi Zheng , Yunze Liu , Chi-Hao Wu , Fan Zhang , Hao Zheng , Wenqi Zhou , Walterio W. Mayol-Cuevas , Junxiao Shen

We propose a novel method called Long Expressive Memory (LEM) for learning long-term sequential dependencies. LEM is gradient-based, it can efficiently process sequential tasks with very long-term dependencies, and it is sufficiently…

Machine Learning · Computer Science 2022-02-28 T. Konstantin Rusch , Siddhartha Mishra , N. Benjamin Erichson , Michael W. Mahoney

It has been shown that semi-parametric methods, which combine standard neural networks with non-parametric components such as external memory modules and data retrieval, are particularly helpful in data scarcity and out-of-distribution…

Machine Learning · Computer Science 2023-10-18 Zihan Qiu , Zhen Liu , Shuicheng Yan , Shanghang Zhang , Jie Fu

Scientific document summarization has been a challenging task due to the long structure of the input text. The long input hinders the simultaneous effective modeling of both global high-order relations between sentences and local…

Computation and Language · Computer Science 2024-05-17 Chenlong Zhao , Xiwen Zhou , Xiaopeng Xie , Yong Zhang

Large Language Models (LLMs) lack persistent memory for long-term personalized conversations. Existing graph-based memory systems suffer from information dilution, absent provenance tracking, and uniform retrieval that ignores query…

Computation and Language · Computer Science 2026-05-05 Hung Pham Van , Nguyen Manh Hieu , Khang Pham Tran Tuan , Nam Le Hai , Linh Ngo Van , Nguyen Thi Ngoc Diep , Trung Le

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

Graph-based retrieval-augmented generation (RAG) methods, typically built on knowledge graphs (KGs) with binary relational facts, have shown promise in multi-hop open-domain QA. However, their rigid retrieval schemes and dense similarity…

Computation and Language · Computer Science 2026-02-17 Wen-Sheng Lien , Yu-Kai Chan , Hao-Lung Hsiao , Bo-Kai Ruan , Meng-Fen Chiang , Chien-An Chen , Yi-Ren Yeh , Hong-Han Shuai

Memory is a central capability for LLM agents operating across long-horizon tasks. Existing memory benchmarks predominantly evaluate retention of personalized information in multi-turn chat scenarios, overlooking the dynamic memory…

Computation and Language · Computer Science 2026-05-21 Wujiang Xu , Yu Wang , Kai Mei , Kaiqu Liang , Zhenting Wang , Mingyu Jin , Han Zhang , Shi-Xiong Zhang , Wenyue Hua , Sambit Sahu , Dimitris N. Metaxas