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While Large Language Models (LLMs) have empowered AI research agents to perform isolated scientific tasks, automating complex, real-world workflows, such as LLM training, remains a significant challenge. In this paper, we introduce TREX, a…

Artificial Intelligence · Computer Science 2026-04-23 Zerun Ma , Guoqiang Wang , Xinchen Xie , Yicheng Chen , He Du , Bowen Li , Yanan Sun , Wenran Liu , Kai Chen , Yining Li

While large language models (LLMs) have proven effective in leveraging textual data for recommendations, their application to multimodal recommendation tasks remains relatively underexplored. Although LLMs can process multimodal information…

Information Retrieval · Computer Science 2025-04-23 Chen Zhang , Bo Hu , Weidong Chen , Zhendong Mao

Large Action Models (LAMs) for AI Agents offer incredible potential but face challenges due to the need for high-quality training data, especially for multi-steps tasks that involve planning, executing tool calls, and responding to…

Simulating consumer decision-making is vital for designing and evaluating marketing strategies before costly real-world deployment. However, post-event analyses and rule-based agent-based models (ABMs) struggle to capture the complexity of…

Artificial Intelligence · Computer Science 2025-10-22 Man-Lin Chu , Lucian Terhorst , Kadin Reed , Tom Ni , Weiwei Chen , Rongyu Lin

The emergence of Large Language Models (LLMs), has opened exciting possibilities for constructing computational simulations designed to replicate human behavior accurately. Current research suggests that LLM-based agents become increasingly…

Computation and Language · Computer Science 2024-12-18 Amir Taubenfeld , Yaniv Dover , Roi Reichart , Ariel Goldstein

The widespread adoption of Large Language Models (LLMs) and LLM-powered agents in multi-user settings underscores the need for reliable, usable methods to accommodate diverse preferences and resolve conflicting directives. Drawing on…

Human-Computer Interaction · Computer Science 2025-03-20 Christine Lee , Jihye Choi , Bilge Mutlu

One particularly promising use case of Large Language Models (LLMs) for recommendation is the automatic generation of Natural Language (NL) user taste profiles from consumption data. These profiles offer interpretable and editable…

Information Retrieval · Computer Science 2025-07-23 Bruno Sguerra , Elena V. Epure , Harin Lee , Manuel Moussallam

Usability testing is a fundamental yet challenging (e.g., inflexible to iterate the study design flaws and hard to recruit study participants) research method for user experience (UX) researchers to evaluate a web design. Recent advances in…

Human-Computer Interaction · Computer Science 2025-04-08 Yuxuan Lu , Bingsheng Yao , Hansu Gu , Jing Huang , Jessie Wang , Yang Li , Jiri Gesi , Qi He , Toby Jia-Jun Li , Dakuo Wang

Large Language Models (LLMs) have demonstrated remarkable success in conversational systems by generating human-like responses. However, they can fall short, especially when required to account for personalization or specific knowledge. In…

Computation and Language · Computer Science 2025-11-12 Soyeong Jeong , Aparna Elangovan , Emine Yilmaz , Oleg Rokhlenko

We propose a personal-LLM exchange (LLM-X), a scalable negotiation-oriented environment that enables direct, structured communication across populations of personal agents (LLMs), each representing an individual user. Unlike existing…

Artificial Intelligence · Computer Science 2026-05-13 Giuliano Lorenzoni , Paulo Alencar , Donald Cowan

Usability testing is a fundamental research method that user experience (UX) researchers use to evaluate and iterate their new designs. But what about evaluating and iterating the usability testing study design itself? Recent advances in…

Computation and Language · Computer Science 2025-09-22 Yuxuan Lu , Bingsheng Yao , Hansu Gu , Jing Huang , Jessie Wang , Yang Li , Jiri Gesi , Qi He , Toby Jia-Jun Li , Dakuo Wang

As a paradigm that delves into the deep seated drivers of user behavior, motivation-based recommendation systems have emerged as a prominent research direction in the field of personalized information retrieval. Unlike traditional…

Information Retrieval · Computer Science 2026-03-16 Yicheng Di

A user can be represented as what he/she does along the history. A common way to deal with the user modeling problem is to manually extract all kinds of aggregated features over the heterogeneous behaviors, which may fail to fully represent…

Artificial Intelligence · Computer Science 2017-11-28 Chang Zhou , Jinze Bai , Junshuai Song , Xiaofei Liu , Zhengchao Zhao , Xiusi Chen , Jun Gao

Simulating step-wise human behavior with Large Language Models (LLMs) has become an emerging research direction, enabling applications in various practical domains. While prior methods, including prompting, supervised fine-tuning (SFT), and…

Computation and Language · Computer Science 2025-10-21 Ziyi Wang , Yuxuan Lu , Yimeng Zhang , Jing Huang , Dakuo Wang

While Large Language Model (LLM)-based agents can be used to create highly engaging interactive applications through prompting personality traits and contextual data, effectively assessing their personalities has proven challenging. This…

Human-Computer Interaction · Computer Science 2025-10-29 Eswari Jayakumar , Niladri Sekhar Dash , Debasmita Mukherjee

Agent-based social simulation provides a valuable methodology for predicting social information diffusion, yet existing approaches face two primary limitations. Traditional agent models often rely on rigid behavioral rules and lack semantic…

Computers and Society · Computer Science 2025-10-21 Xinyi Li , Zhiqiang Guo , Qinglang Guo , Hao Jin , Weizhi Ma , Min Zhang

The emergence of Large Language Models (LLMs) has illuminated the potential for a general-purpose user simulator. However, existing benchmarks remain constrained to isolated scenarios, narrow action spaces, or synthetic data, failing to…

Computation and Language · Computer Science 2026-05-22 Jiawei Chen , Ruoxi Xu , Boxi Cao , Ruotong Pan , Yunfei Zhang , Yifei Hu , Yong Du , Tingting Gao , Yaojie Lu , Yingfei Sun , Xianpei Han , Le Sun , Xiangyu Wu , Hongyu Lin

Large Language Models (LLMs) have emerged as formidable instruments capable of comprehending and producing human-like text. This paper explores the potential of LLMs, to shape user perspectives and subsequently influence their decisions on…

Artificial Intelligence · Computer Science 2024-09-04 Ganesh Prasath Ramani , Shirish Karande , Santhosh V , Yash Bhatia

The rapid advancement of Large Language Models (LLMs) has opened new opportunities in recommender systems by enabling zero-shot recommendation without conventional training. Despite their potential, most existing works rely solely on users'…

Computation and Language · Computer Science 2026-05-01 Seunghwan Bang , Hwanjun Song

Last year has witnessed the considerable interest of Large Language Models (LLMs) for their potential applications in recommender systems, which may mitigate the persistent issue of data sparsity. Though large efforts have been made for…

Information Retrieval · Computer Science 2024-05-14 Ziwei Zhao , Fake Lin , Xi Zhu , Zhi Zheng , Tong Xu , Shitian Shen , Xueying Li , Zikai Yin , Enhong Chen