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LLM-based conversational AI agents struggle to maintain coherent behavior over long horizons due to limited context. While RAG-based approaches are increasingly adopted to overcome this limitation by storing interactions in external memory…

Artificial Intelligence · Computer Science 2026-05-13 Jiazhou Liang , Armin Toroghi , Yifan Simon Liu , Faeze Moradi Kalarde , Liam Gallagher , Scott Sanner

Recent memory agents improve LLMs by extracting experiences and conversation history into an external storage. This enables low-overhead context assembly and online memory update without expensive LLM training. However, existing solutions…

Artificial Intelligence · Computer Science 2026-02-27 Xinle Wu , Rui Zhang , Mustafa Anis Hussain , Yao Lu

Large language models (LLMs) have revolutionized AI, but are constrained by limited context windows, hindering their utility in tasks like extended conversations and document analysis. To enable using context beyond limited context windows,…

Artificial Intelligence · Computer Science 2024-02-13 Charles Packer , Sarah Wooders , Kevin Lin , Vivian Fang , Shishir G. Patil , Ion Stoica , Joseph E. Gonzalez

Autonomous LLM agents require structured long-term memory, yet current "append-and-evolve" systems like A-MEM face O(N^2) write-latency and excessive token costs. We introduce D-MEM (Dopamine-Gated Agentic Memory), a biologically inspired…

Neurons and Cognition · Quantitative Biology 2026-03-17 Yuru Song , Qi Xin

Optimizing communication topology is fundamental to the efficiency and effectiveness of Large Language Model (LLM)-based Multi-Agent Systems (MAS). While recent approaches utilize reinforcement learning to dynamically construct…

Computation and Language · Computer Science 2026-03-04 Yueyang Cang , Xiaoteng Zhang , Erlu Zhao , Zehua Ji , Yuhang Liu , Yuchen He , Zhiyuan Ning , Chen Yijun , Wenge Que , Li Shi

Large Language Model (LLM)-based web agents excel at knowledge-intensive tasks but face a fundamental conflict between the need for extensive exploration and the constraints of limited context windows. Current solutions typically rely on…

Large language model-based web agents have shown strong potential in automating web interactions through advanced reasoning and instruction following. While retrieval-based memory derived from historical trajectories enables these agents to…

Artificial Intelligence · Computer Science 2026-03-10 Yunteng Tan , Zhi Gao , Xinxiao Wu

LLM-based agents have been extensively applied across various domains, where memory stands out as one of their most essential capabilities. Previous memory mechanisms of LLM-based agents are manually predefined by human experts, leading to…

Machine Learning · Computer Science 2025-08-26 Zeyu Zhang , Quanyu Dai , Rui Li , Xiaohe Bo , Xu Chen , Zhenhua Dong

Memory-augmented LLM agents maintain external memory banks to support long-horizon interaction, yet most existing systems treat construction, retrieval, and utilization as isolated subroutines. This creates two coupled challenges: strategic…

Artificial Intelligence · Computer Science 2026-03-20 Minhua Lin , Zhiwei Zhang , Hanqing Lu , Hui Liu , Xianfeng Tang , Qi He , Xiang Zhang , Suhang Wang

Large language model (LLM)-based agents have emerged as powerful autonomous controllers for digital environments, including mobile interfaces, operating systems, and web browsers. Web navigation, for example, requires handling dynamic…

Artificial Intelligence · Computer Science 2026-03-23 Taiyi Wang , Sian Gooding , Florian Hartmann , Oriana Riva , Edward Grefenstette

Memory-augmented Large Language Models (LLMs) are essential for developing capable, long-term AI agents. Recently, applying Reinforcement Learning (RL) to optimize memory operations, such as extraction, updating, and retrieval, has emerged…

Computation and Language · Computer Science 2026-04-08 Ziliang Guo , Ziheng Li , Bo Tang , Feiyu Xiong , Zhiyu 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

Large Language Models (LLMs) have demonstrated remarkable prowess in generating contextually coherent responses, yet their fixed context windows pose fundamental challenges for maintaining consistency over prolonged multi-session dialogues.…

Computation and Language · Computer Science 2025-04-29 Prateek Chhikara , Dev Khant , Saket Aryan , Taranjeet Singh , Deshraj Yadav

The transition from stateless language model inference to persistent, multi session autonomous agents has revealed memory to be a primary architectural bottleneck in the deployment of production grade agentic systems. Existing methodologies…

Artificial Intelligence · Computer Science 2026-04-27 Seyed Moein Abtahi , Rasa Rahnema , Hetkumar Patel , Neel Patel , Majid Fekri , Tara Khani

Large language model (LLM) agents are fundamentally bottlenecked by finite context windows on long-horizon tasks. As trajectories grow, retaining tool outputs and intermediate reasoning in-context quickly becomes infeasible: the working…

Computation and Language · Computer Science 2026-03-05 Zhenting Wang , Huancheng Chen , Jiayun Wang , Wei Wei

Information-seeking is a core capability for AI agents, requiring them to gather and reason over tool-generated information across long trajectories. However, such multi-step information-seeking tasks remain challenging for agents backed by…

Artificial Intelligence · Computer Science 2025-11-25 Jaewoo Lee , Archiki Prasad , Justin Chih-Yao Chen , Zaid Khan , Elias Stengel-Eskin , Mohit Bansal

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

Large language model-based agents operating in long-horizon interactions require memory systems that support temporal consistency, multi-hop reasoning, and evidence-grounded reuse across sessions. Existing approaches largely rely on…

Computation and Language · Computer Science 2026-01-27 Juexiang Ye , Xue Li , Xinyu Yang , Chengkai Huang , Lanshun Nie , Lina Yao , Dechen Zhan

Retrieval augmented generation (RAG) reduces hallucinations and factual errors in large language models (LLMs) by conditioning generation on retrieved external knowledge. Recent search agents further cast RAG as an autonomous, multi-turn…

Computation and Language · Computer Science 2026-03-05 Jian Li , Yizhang Jin , Dongqi Liu , Hang Ding , Jiafu Wu , Dongsheng Chen , Yunhang Shen , Yulei Qin , Ying Tai , Chengjie Wang , Xiaotong Yuan , Yabiao Wang

Online Reinforcement Learning (RL) offers a promising paradigm for enhancing GUI agents through direct environment interaction. However, its effectiveness is severely hindered by inefficient credit assignment in long-horizon tasks and…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Han Xiao , Guozhi Wang , Hao Wang , Shilong Liu , Yuxiang Chai , Yue Pan , Yufeng Zhou , Xiaoxin Chen , Yafei Wen , Hongsheng Li