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Autonomous AI agents that can follow instructions and perform complex multi-step tasks have tremendous potential to boost human productivity. However, to perform many of these tasks, the agents need access to personal information from their…

Artificial Intelligence · Computer Science 2025-10-03 Arman Zharmagambetov , Chuan Guo , Ivan Evtimov , Maya Pavlova , Ruslan Salakhutdinov , Kamalika Chaudhuri

Ensuring the long-term sustainability of recommender systems (RS) emerges as a crucial issue. Traditional offline evaluation methods for RS typically focus on immediate user feedback, such as clicks, but they often neglect the long-term…

Information Retrieval · Computer Science 2025-02-12 Xiaopeng Ye , Chen Xu , Zhongxiang Sun , Jun Xu , Gang Wang , Zhenhua Dong , Ji-Rong Wen

Recommender systems often rely on models which are trained to maximize accuracy in predicting user preferences. When the systems are deployed, these models determine the availability of content and information to different users. The gap…

Machine Learning · Computer Science 2021-02-02 Sarah Dean , Sarah Rich , Benjamin Recht

While AI agents demonstrate remarkable capabilities in reasoning and tool use, they remain fundamentally reactive: they compute responses only after explicit user prompts. This paradigm ignores a critical opportunity: the idle time between…

Computation and Language · Computer Science 2026-05-27 Haoyi Hu , Qirong Lyu , Xianghan Kong , Weiwen Liu , Jianghao Lin , Zixuan Guo , Yan Xu , Yasheng Wang , Weinan Zhang , Yong Yu

Automated tools for video editing and assembly have applications ranging from filmmaking and advertisement to content creation for social media. Previous video editing work has mainly focused on either retrieval or user interfaces, leaving…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Marcelo Sandoval-Castaneda , Bryan Russell , Josef Sivic , Gregory Shakhnarovich , Fabian Caba Heilbron

Multi-agent AI systems can be used for simulating collective decision-making in scientific and practical applications. They can also be used to introduce a diverse group discussion step in chatbot pipelines, enhancing the cultural…

Artificial Intelligence · Computer Science 2024-08-16 Razan Baltaji , Babak Hemmatian , Lav R. Varshney

Personalized Large Language Models (LLMs) have been shown to be an effective way to create more engaging and enjoyable user-AI interactions. While previous studies have explored using prompts to elicit specific personality traits in LLMs,…

Computation and Language · Computer Science 2025-11-26 Shi-Wei Dai , Yan-Wei Shie , Tsung-Huan Yang , Lun-Wei Ku , Yung-Hui Li

Accurately assessing internal human states is key to understanding preferences, offering personalized services, and identifying challenges in real-world applications. Originating from psychometrics, adaptive testing has become the…

Artificial Intelligence · Computer Science 2025-06-04 Junhao Yu , Yan Zhuang , YuXuan Sun , Weibo Gao , Qi Liu , Mingyue Cheng , Zhenya Huang , Enhong Chen

Understanding and classifying user personas is critical for delivering effective personalization. While persona information offers valuable insights, its full potential is realized only when contextualized, linking user characteristics with…

Human-Computer Interaction · Computer Science 2026-02-05 Saleh Afzoon , Amin Beheshti , Usman Naseem

Large language models (LLMs) are increasingly used to simulate human decision-making, but their intrinsic biases often diverge from real human behavior--limiting their ability to reflect population-level diversity. We address this challenge…

Computer Science and Game Theory · Computer Science 2025-08-27 Ayato Kitadai , Yusuke Fukasawa , Nariaki Nishino

Current conversational AI systems often provide generic, one-size-fits-all interactions that overlook individual user characteristics and lack adaptive dialogue management. To address this gap, we introduce \textbf{HumAIne-chatbot}, an…

Human-Computer Interaction · Computer Science 2025-09-25 Georgios Makridis , George Fragiadakis , Jorge Oliveira , Tomaz Saraiva , Philip Mavrepis , Georgios Fatouros , Dimosthenis Kyriazis

In e-commerce, behavioral data is collected for decision making which can be costly and slow. Simulation with LLM powered agents is emerging as a promising alternative for representing human population behavior. However, LLMs are known to…

Artificial Intelligence · Computer Science 2025-04-01 Saab Mansour , Leonardo Perelli , Lorenzo Mainetti , George Davidson , Stefano D'Amato

Personalized learning represents a promising educational strategy within intelligent educational systems, aiming to enhance learners' practice efficiency. However, the discrepancy between offline metrics and online performance significantly…

Computers and Society · Computer Science 2026-05-29 Weibo Gao , Qi Liu , Linan Yue , Fangzhou Yao , Rui Lv , Zheng Zhang , Hao Wang , Zhenya Huang

We present an extensible user simulation toolkit to facilitate automatic evaluation of conversational recommender systems. It builds on an established agenda-based approach and extends it with several novel elements, including user…

Information Retrieval · Computer Science 2023-01-25 Jafar Afzali , Aleksander Mark Drzewiecki , Krisztian Balog , Shuo Zhang

Video content remains largely inaccessible to blind and low-vision (BLV) users. To address this, we introduce a prototype that leverages a multimodal agent - powered by a novel conversational architecture using a multimodal large language…

Agent-based modelling is a valuable approach for systems whose behaviour is driven by the interactions between distinct entities. They have shown particular promise as a means of modelling crowds of people in streets, public transport…

Multiagent Systems · Computer Science 2020-04-30 Nick Malleson , Kevin Minors , Le-Minh Kieu , Jonathan A. Ward , Andrew A. West , Alison Heppenstall

Simulating human reasoning in open-ended tasks has long been a central aspiration in AI and cognitive science. While large language models now approximate human responses at scale, they remain tuned to population-level consensus, often…

Recent years, multimodal models have made remarkable strides and pave the way for intelligent browser use agents. However, when solving tasks on real world webpages in multi-turn, long-horizon trajectories, current agents still suffer from…

Artificial Intelligence · Computer Science 2025-09-26 Kaiwen He , Zhiwei Wang , Chenyi Zhuang , Jinjie Gu

With the rapid expansion of user bases on short video platforms, personalized recommendation systems are playing an increasingly critical role in enhancing user experience and optimizing content distribution. Traditional interest modeling…

Information Retrieval · Computer Science 2025-09-08 Yushang Zhao , Yike Peng , Li Zhang , Qianyi Sun , Zhihui Zhang , Yingying Zhuang

For decades, human-computer interaction has fundamentally been manual. Even today, almost all productive work done on the computer necessitates human input at every step. Autonomous virtual agents represent an exciting step in automating…

Artificial Intelligence · Computer Science 2024-07-23 Raghav Kapoor , Yash Parag Butala , Melisa Russak , Jing Yu Koh , Kiran Kamble , Waseem Alshikh , Ruslan Salakhutdinov