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Large Language Models (LLMs) excel in handling general knowledge tasks, yet they struggle with user-specific personalization, such as understanding individual emotions, writing styles, and preferences. Personalized Large Language Models…

Artificial Intelligence · Computer Science 2025-09-23 Jiahong Liu , Zexuan Qiu , Zhongyang Li , Quanyu Dai , Wenhao Yu , Jieming Zhu , Minda Hu , Menglin Yang , Tat-Seng Chua , Irwin King

Generative Pre-trained Transformer (GPT) models have achieved remarkable performance on various natural language processing tasks, and have shown great potential as backbones for audio-and-text large language models (LLMs). Previous…

Objective To solve major clinical natural language processing (NLP) tasks using a unified text-to-text learning architecture based on a generative large language model (LLM) via prompt tuning. Methods We formulated 7 key clinical NLP tasks…

Computation and Language · Computer Science 2023-12-12 Cheng Peng , Xi Yang , Aokun Chen , Zehao Yu , Kaleb E Smith , Anthony B Costa , Mona G Flores , Jiang Bian , Yonghui Wu

Recommendation systems aim to provide users with relevant suggestions, but often lack interpretability and fail to capture higher-level semantic relationships between user behaviors and profiles. In this paper, we propose a novel approach…

Information Retrieval · Computer Science 2024-01-26 Yan Wang , Zhixuan Chu , Xin Ouyang , Simeng Wang , Hongyan Hao , Yue Shen , Jinjie Gu , Siqiao Xue , James Y Zhang , Qing Cui , Longfei Li , Jun Zhou , Sheng Li

Large language models (LLMs) have shown remarkable capabilities in generating user summaries from a long list of raw user activity data. These summaries capture essential user information such as preferences and interests, and therefore are…

Machine Learning · Computer Science 2024-09-09 Chao Wang , Neo Wu , Lin Ning , Jiaxing Wu , Luyang Liu , Jun Xie , Shawn O'Banion , Bradley Green

User profile embedded in the prompt template of personalized recommendation agents play a crucial role in shaping their decision-making process. High-quality user profiles are essential for aligning agent behavior with real user interests.…

Information Retrieval · Computer Science 2025-05-27 Yunxiao Shi , Wujiang Xu , Zeqi Zhang , Xing Zi , Qiang Wu , Min Xu

The use of large language models (LLMs) to simulate human behavior has gained significant attention, particularly through personas that approximate individual characteristics. Persona-based simulations hold promise for transforming…

Computation and Language · Computer Science 2025-03-24 Ang Li , Haozhe Chen , Hongseok Namkoong , Tianyi Peng

Large Language Model (LLM) personalization holds great promise for tailoring responses by leveraging personal context and history. However, real-world users usually possess sparse interaction histories with limited personal context, such as…

The deployment of Large Language Models (LLMs) in interactive systems necessitates a deep alignment with the nuanced and dynamic preferences of individual users. Current alignment techniques predominantly address universal human values or…

Computation and Language · Computer Science 2025-12-18 Xiaotian Zhang , Yuan Wang , Ruizhe Chen , Zeya Wang , Runchen Hou , Zuozhu Liu

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

As large language models (LLMs) evolve, their ability to deliver personalized and context-aware responses offers transformative potential for improving user experiences. Existing personalization approaches, however, often rely solely on…

Large language models (LLMs) enable the rapid generation of data wrangling scripts based on natural language instructions, but these scripts may not fully adhere to user-specified requirements, necessitating careful inspection and iterative…

Human-Computer Interaction · Computer Science 2025-08-05 Jiajun Zhu , Xinyu Cheng , Zhongsu Luo , Yunfan Zhou , Xinhuan Shu , Di Weng , Yingcai Wu

While black-box large language models are widely deployed, they produce generic outputs that overlook individual user preferences. Current personalization methods are fundamentally limited to response-level personalization; they only match…

Computation and Language · Computer Science 2026-03-03 Jieyong Kim , Tongyoung Kim , Soojin Yoon , Jaehyung Kim , Dongha Lee

Evaluating AI systems that interact with humans requires understanding their behavior across diverse user populations, but collecting representative human data is often expensive or infeasible, particularly for novel technologies or…

Artificial Intelligence · Computer Science 2026-05-27 Davide Paglieri , Logan Cross , William A. Cunningham , Joel Z. Leibo , Alexander Sasha Vezhnevets

Large Language Models (LLMs) struggle with generating reliable outputs due to outdated knowledge and hallucinations. Retrieval-Augmented Generation (RAG) models address this by enhancing LLMs with external knowledge, but often fail to…

Information Retrieval · Computer Science 2026-01-16 Saber Zerhoudi , Michael Granitzer

User modeling characterizes individuals through their preferences and behavioral patterns to enable personalized simulation and generation with Large Language Models (LLMs) in contemporary approaches. However, existing methods, whether…

Computation and Language · Computer Science 2026-02-03 Liang Wang , Xinyi Mou , Xiaoyou Liu , Xuanjing Huang , Zhongyu Wei

Measuring the generalization ability of Large Language Models (LLMs) is challenging due to data contamination. As models grow and computation becomes cheaper, ensuring tasks and test cases are unseen during training phases will become…

Computation and Language · Computer Science 2025-07-09 Sougata Saha , Monojit Choudhury

Recent advances in Large Language Models (LLMs) have been changing the paradigm of Recommender Systems (RS). However, when items in the recommendation scenarios contain rich textual information, such as product descriptions in online…

Information Retrieval · Computer Science 2024-03-21 Zhi Zheng , Wenshuo Chao , Zhaopeng Qiu , Hengshu Zhu , Hui Xiong

Personalization in social robotics is critical for fostering effective human-robot interactions, yet systems often face the cold start problem, where initial user preferences or characteristics are unavailable. This paper proposes a novel…

Human-Computer Interaction · Computer Science 2025-04-03 Hamed Rahimi , Jeanne Cattoni , Meriem Beghili , Mouad Abrini , Mahdi Khoramshahi , Maribel Pino , Mohamed Chetouani

LLM-powered personalization agent systems employ Large Language Models (LLMs) to predict users' behavior from their past activities. However, their effectiveness often hinges on the ability to effectively leverage extensive, long user…

Computation and Language · Computer Science 2025-01-20 Jiaxing Wu , Lin Ning , Luyang Liu , Harrison Lee , Neo Wu , Chao Wang , Sushant Prakash , Shawn O'Banion , Bradley Green , Jun Xie