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Long-term memory (LTM) is essential for large language models (LLMs) to achieve autonomous intelligence in complex, evolving environments. Despite increasing efforts in memory-augmented and retrieval-based architectures, there remains a…

Computation and Language · Computer Science 2025-06-17 Luanbo Wan , Weizhi Ma

Persona-based dialogue systems aim to generate consistent responses based on historical context and predefined persona. Unlike conventional dialogue generation, the persona-based dialogue needs to consider both dialogue context and persona,…

Computation and Language · Computer Science 2024-01-11 Qiushi Huang , Yu Zhang , Tom Ko , Xubo Liu , Bo Wu , Wenwu Wang , Lilian Tang

LLM-based agents can complete tasks correctly yet still frustrate users through poor interaction patterns, such as excessive confirmations, opaque reasoning, or misaligned pacing. Current benchmarks evaluate task accuracy but overlook how…

Human-Computer Interaction · Computer Science 2026-02-09 Jialin Li , Zhenhao Chen , Hanjun Luo , Hanan Salam

LLM-powered embodied agents have shown success on conventional object-rearrangement tasks, but providing personalized assistance that leverages user-specific knowledge from past interactions presents new challenges. We investigate these…

Computation and Language · Computer Science 2026-02-16 Taeyoon Kwon , Dongwook Choi , Hyojun Kim , Sunghwan Kim , Seungjun Moon , Beong-woo Kwak , Kuan-Hao Huang , Jinyoung Yeo

In this study, we propose a novel human-like memory architecture designed for enhancing the cognitive abilities of large language model based dialogue agents. Our proposed architecture enables agents to autonomously recall memories…

Human-Computer Interaction · Computer Science 2024-04-02 Yuki Hou , Haruki Tamoto , Homei Miyashita

Agent memory shapes how Large Language Model (LLM)-powered agents, akin to the human brain, progressively refine themselves through environment interactions. Existing paradigms remain constrained: parametric memory forcibly adjusts model…

Computation and Language · Computer Science 2025-10-14 Guibin Zhang , Muxin Fu , Shuicheng Yan

Large language models (LLMs) have advanced significantly due to the attention mechanism, but their quadratic complexity and linear memory demands limit their performance on long-context tasks. Recently, researchers introduced Mamba, an…

Computation and Language · Computer Science 2024-10-22 Wangjie You , Zecheng Tang , Juntao Li , Lili Yao , Min Zhang

Personalization is essential for Large Language Model (LLM)-based agents to adapt to users' preferences and improve response quality and task performance. However, most existing approaches infer personas from chat histories, which capture…

Computation and Language · Computer Science 2026-04-09 Bufang Yang , Lilin Xu , Yixuan Li , Kaiwei Liu , Xiaofan Jiang , Zhenyu Yan

Large language models (LLMs) and LLM-based agents are increasingly deployed as assistants in planning and decision making, yet most existing systems are implicitly optimized for a single-principal interaction paradigm, in which the model is…

Computation and Language · Computer Science 2026-04-29 Shu Yang , Shenzhe Zhu , Hao Zhu , José Ramón Enríquez , Di Wang , Alex Pentland , Michiel A. Bakker , Jiaxin Pei

Current large language model (LLM) development treats task-solving and preference-alignment as separate challenges, optimizing first for objective correctness, then for alignment to aggregated human preferences. This paradigm fails in…

Computation and Language · Computer Science 2026-03-06 Shuyue Stella Li , Avinandan Bose , Faeze Brahman , Simon Shaolei Du , Pang Wei Koh , Maryam Fazel , Yulia Tsvetkov

Large language model (LLM) based agents have recently attracted much attention from the research and industry communities. Compared with original LLMs, LLM-based agents are featured in their self-evolving capability, which is the basis for…

Artificial Intelligence · Computer Science 2024-04-23 Zeyu Zhang , Xiaohe Bo , Chen Ma , Rui Li , Xu Chen , Quanyu Dai , Jieming Zhu , Zhenhua Dong , Ji-Rong Wen

Large language model (LLM) based recommendation agents personalize what they know through evolving per-user semantic memory, yet how they reason remains a universal, static system prompt shared identically across all users. This asymmetry…

Information Retrieval · Computer Science 2026-04-22 Zhen Tao , Riwei Lai , Chenyun Yu , Weixin Chen , Li Chen , Beibei Kong , Lei Cheng , Chengxiang Zhuo , Zang Li , Qingqiang Sun

Large Language Models (LLMs) demonstrate human-like capabilities in language understanding, reasoning, and generation, driving interest in using LLM-based agents to simulate human feedback in recommender systems. However, most existing…

Information Retrieval · Computer Science 2025-09-23 Xinye Wanyan , Danula Hettiachchi , Chenglong Ma , Ziqi Xu , Jeffrey Chan

Pluralistic alignment has emerged as a critical frontier in the development of Large Language Models (LLMs), with reward models (RMs) serving as a central mechanism for capturing diverse human values. While benchmarks for general response…

Computation and Language · Computer Science 2026-04-09 Qiyao Ma , Dechen Gao , Rui Cai , Boqi Zhao , Hanchu Zhou , Junshan Zhang , Zhe Zhao

Modern AI agents are powerful but often fail to align with the idiosyncratic, evolving preferences of individual users. Prior approaches typically rely on static datasets, either training implicit preference models on interaction history or…

Large Language Model (LLM)-powered web GUI agents are increasingly automating everyday online tasks. Despite their popularity, little is known about how users' preferences and values impact agents' reasoning and behavior. In this work, we…

Recent advances in persona-centric memory have revealed the powerful capability of multi-agent systems in managing persona memory, especially in conversational scenarios. However, these complex frameworks often suffer from information loss…

Computation and Language · Computer Science 2026-04-03 Qi Zhang , Shen Huang , Chu Liu , Shouqing Yang , Junbo Zhao , Haobo Wang , Pengjun Xie

External memory is a key component of modern large language model (LLM) systems, enabling long-term interaction and personalization. Despite its importance, memory management is still largely driven by hand-designed heuristics, offering…

Computation and Language · Computer Science 2025-12-29 Changzhi Sun , Xiangyu Chen , Jixiang Luo , Dell Zhang , Xuelong Li

As language models achieve increasingly human-like capabilities in conversational text generation, a critical question emerges: to what extent can these systems simulate the characteristics of specific individuals? To evaluate this, we…

Computation and Language · Computer Science 2025-06-04 Quan Shi , Carlos E. Jimenez , Stephen Dong , Brian Seo , Caden Yao , Adam Kelch , Karthik Narasimhan

With the large language model showing human-like logical reasoning and understanding ability, whether agents based on the large language model can simulate the interaction behavior of real users, so as to build a reliable virtual…

Information Retrieval · Computer Science 2024-03-05 Chenwei Zhang , Wenran Lu , Chunhe Ni , Hongbo Wang , Jiang Wu