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Aligning large language models with human preferences is critical for creating reliable and controllable AI systems. A human preference can be visualized as a high-dimensional vector where different directions represent trade-offs between…

计算与语言 · 计算机科学 2026-02-26 Ruochen Mao , Yuling Shi , Xiaodong Gu , Jiaheng Wei

Group recommendation provides personalized recommendations to a group of users based on their shared interests, preferences, and characteristics. Current studies have explored different methods for integrating individual preferences and…

信息检索 · 计算机科学 2023-08-09 Jianye Ji , Jiayan Pei , Shaochuan Lin , Taotao Zhou , Hengxu He , Jia Jia , Ning Hu

Code Community Question Answering (CCQA) seeks to tackle programming-related issues, thereby boosting productivity in both software engineering and academic research. Recent advancements in Reinforcement Learning from Human Feedback (RLHF)…

计算与语言 · 计算机科学 2024-06-04 Hongyu Yang , Liyang He , Min Hou , Shuanghong Shen , Rui Li , Jiahui Hou , Jianhui Ma , Junda Zhao

Generative AI models differ from traditional machine learning tools in that they allow users to provide as much or as little information as they choose in their inputs. This flexibility often leads users to omit certain details, relying on…

计算机科学与博弈论 · 计算机科学 2026-05-13 Charlotte Park , Kate Donahue , Manish Raghavan

Recently, Product Question Answering (PQA) on E-Commerce platforms has attracted increasing attention as it can act as an intelligent online shopping assistant and improve the customer shopping experience. Its key function, automatic answer…

计算与语言 · 计算机科学 2021-12-28 Yang Deng , Yaliang Li , Wenxuan Zhang , Bolin Ding , Wai Lam

Large Language Model (LLM) personalization aims to align model behaviors with individual user preferences. Existing methods often focus on isolated user histories, neglecting the essential role of inter-user differences. We propose C-BPO, a…

计算与语言 · 计算机科学 2026-05-12 Xilai Ma , Liye Zhao , Weijun Yao , Haibing Di , Wenya Wang , Jing Li

Text-to-image diffusion models have revolutionized visual content generation, yet their deployment is hindered by a fundamental limitation: safety mechanisms enforce rigid, uniform standards that fail to reflect diverse user preferences…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Yu Lei , Jinbin Bai , Qingyu Shi , Aosong Feng , Hongcheng Gao , Xiao Zhang , Rex Ying

In modern search systems, search engines often suggest relevant queries to users through various panels or components, helping refine their information needs. Traditionally, these recommendations heavily rely on historical search logs to…

信息检索 · 计算机科学 2025-07-08 Erxue Min , Hsiu-Yuan Huang , Xihong Yang , Min Yang , Xin Jia , Yunfang Wu , Hengyi Cai , Junfeng Wang , Shuaiqiang Wang , Dawei Yin

Large language models (LLMs) typically utilize the top-k contexts from a retriever in retrieval-augmented generation (RAG). In this work, we propose a novel instruction fine-tuning framework RankRAG, which instruction-tunes a single LLM for…

计算与语言 · 计算机科学 2024-07-03 Yue Yu , Wei Ping , Zihan Liu , Boxin Wang , Jiaxuan You , Chao Zhang , Mohammad Shoeybi , Bryan Catanzaro

The rapid proliferation of Location-Based Social Networks (LBSNs) has underscored the importance of Point-of-Interest (POI) recommendation systems in enhancing user experiences. While individual POI recommendation methods leverage users'…

信息检索 · 计算机科学 2025-08-07 Jing Long , Liang Qu , Junliang Yu , Tong Chen , Quoc Viet Hung Nguyen , Hongzhi Yin

This paper presents a novel approach to aligning large language models (LLMs) with individual human preferences, sometimes referred to as Reinforcement Learning from \textit{Personalized} Human Feedback (RLPHF). Given stated preferences…

人工智能 · 计算机科学 2024-07-08 Jin Peng Zhou , Katie Z Luo , Jingwen Gu , Jason Yuan , Kilian Q. Weinberger , Wen Sun

Auto-evaluation is crucial for assessing response quality and offering feedback for model development. Recent studies have explored training large language models (LLMs) as generative judges to evaluate and critique other models' outputs.…

计算与语言 · 计算机科学 2025-09-15 Peifeng Wang , Austin Xu , Yilun Zhou , Caiming Xiong , Shafiq Joty

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…

人工智能 · 计算机科学 2025-09-23 Jiahong Liu , Zexuan Qiu , Zhongyang Li , Quanyu Dai , Wenhao Yu , Jieming Zhu , Minda Hu , Menglin Yang , Tat-Seng Chua , Irwin King

Large Language Models (LLMs) excel at producing broadly relevant text, but this generality becomes a limitation when user-specific preferences are required, such as recommending restaurants or planning travel. In these scenarios, users…

Reinforcement Learning from Human Feedback (RLHF) is widely used to align Language Models (LMs) with human preferences. However, existing approaches often neglect individual user preferences, leading to suboptimal personalization. We…

Preference optimization is crucial for aligning large language models (LLMs) with human values and intentions. A significant challenge in this process is the distribution mismatch between pre-collected offline preference data and the…

计算与语言 · 计算机科学 2026-03-02 Junming Yang , Ning Xu , Biao Liu , Shiqi Qiao , Xin Geng

Sequential recommendation systems predict the next interaction item based on users' past interactions, aligning recommendations with individual preferences. Leveraging the strengths of Large Language Models (LLMs) in knowledge comprehension…

信息检索 · 计算机科学 2025-01-22 Xiaoyu Kong , Jiancan Wu , An Zhang , Leheng Sheng , Hui Lin , Xiang Wang , Xiangnan He

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…

计算与语言 · 计算机科学 2026-03-03 Jieyong Kim , Tongyoung Kim , Soojin Yoon , Jaehyung Kim , Dongha Lee

Drug recommendation requires a deep understanding of individual patient context, especially for complex conditions like Parkinson's disease. While LLMs possess broad medical knowledge, they fail to capture the subtle nuances of actual…

计算与语言 · 计算机科学 2026-03-19 Chaeyoung Huh , Hyunmin Hwang , Jung Hwan Shin , Jinse Park , Jong Chul Ye

Despite advances in Preference Alignment (PA) for Large Language Models (LLMs), mainstream methods like Reinforcement Learning with Human Feedback (RLHF) face notable challenges. These approaches require high-quality datasets of positive…

机器学习 · 计算机科学 2025-04-10 Xiaohua Feng , Yuyuan Li , Huwei Ji , Jiaming Zhang , Li Zhang , Tianyu Du , Chaochao Chen