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Large language model (LLM) personalization aims to align model outputs with individuals' unique preferences and opinions. While recent efforts have implemented various personalization methods, a unified theoretical framework that can…

计算与语言 · 计算机科学 2025-09-30 Xinliang Frederick Zhang , Nick Beauchamp , Lu Wang

Fine-tuning large language models (LLMs) on human preferences, typically through reinforcement learning from human feedback (RLHF), has proven successful in enhancing their capabilities. However, ensuring the safety of LLMs during…

人工智能 · 计算机科学 2025-04-09 Wenxuan Zhang , Philip H. S. Torr , Mohamed Elhoseiny , Adel Bibi

Personalization and contextual coherence are two essential components in building effective persona-grounded dialogue systems. These aspects play a crucial role in enhancing user engagement and ensuring responses are more relevant and…

计算与语言 · 计算机科学 2026-02-05 Saleh Afzoon , MohammadHossein Ahmadi , Usman Naseem , Amin Beheshti

Large language models (LLMs) have shown remarkable success, but aligning them with human preferences remains a core challenge. As individuals have their own, multi-dimensional preferences, recent studies have explored multi-dimensional…

机器学习 · 计算机科学 2025-06-03 Minhyeon Oh , Seungjoon Lee , Jungseul Ok

Large Language Models (LLMs) have demonstrated remarkable performance across various domains, motivating researchers to investigate their potential use in recommendation systems. However, directly applying LLMs to recommendation tasks has…

信息检索 · 计算机科学 2024-06-21 Zhuoxi Bai , Ning Wu , Fengyu Cai , Xinyi Zhu , Yun Xiong

Large language model (LLM) personalization aims to tailor model behavior to individual users based on their historical interactions. However, its effectiveness is often hindered by two key challenges: the \textit{cold-start problem}, where…

计算与语言 · 计算机科学 2025-09-30 Zehong Wang , Junlin Wu , ZHaoxuan Tan , Bolian Li , Xianrui Zhong , Zheli Liu , Qingkai Zeng

In the field of large language models (LLMs), aligning models with the diverse preferences of users is a critical challenge. Direct Preference Optimization (DPO) has played a key role in this area. It works by using pairs of preferences…

计算与语言 · 计算机科学 2024-05-29 Yueqin Yin , Zhendong Wang , Yi Gu , Hai Huang , Weizhu Chen , Mingyuan Zhou

While astonishingly capable, large Language Models (LLM) can sometimes produce outputs that deviate from human expectations. Such deviations necessitate an alignment phase to prevent disseminating untruthful, toxic, or biased information.…

人工智能 · 计算机科学 2024-10-30 Long Tan Le , Han Shu , Tung-Anh Nguyen , Choong Seon Hong , Nguyen H. Tran

We study the problem of aligning large language models (LLMs) with human preference data. Contrastive preference optimization has shown promising results in aligning LLMs with available preference data by optimizing the implicit reward…

机器学习 · 计算机科学 2024-12-20 Teng Xiao , Yige Yuan , Huaisheng Zhu , Mingxiao Li , Vasant G Honavar

Aligning large language models (LLMs) with human preferences has been recognized as the key to improving LLMs' interaction quality. However, in this pluralistic world, human preferences can be diversified due to annotators' different…

人工智能 · 计算机科学 2024-10-08 Dun Zeng , Yong Dai , Pengyu Cheng , Longyue Wang , Tianhao Hu , Wanshun Chen , Nan Du , Zenglin Xu

Personalized large language models (LLMs) are designed to tailor responses to individual user preferences. While Reinforcement Learning from Human Feedback (RLHF) is a commonly used framework for aligning LLMs with human preferences,…

计算与语言 · 计算机科学 2024-12-10 Xinyu Li , Ruiyang Zhou , Zachary C. Lipton , Liu Leqi

Personalizing large language models (LLMs) is essential for delivering tailored interactions that improve user experience. Many existing personalization methods require fine-tuning LLMs for each user, rendering them prohibitively expensive…

机器学习 · 计算机科学 2025-03-06 Yijing Zhang , Dyah Adila , Changho Shin , Frederic Sala

Large language models (LLMs) fine-tuned with alignment techniques, such as reinforcement learning from human feedback, have been instrumental in developing some of the most capable AI systems to date. Despite their success, existing methods…

计算与语言 · 计算机科学 2025-07-01 Kyuyoung Kim , Ah Jeong Seo , Hao Liu , Jinwoo Shin , Kimin Lee

In aligning large language models (LLMs), utilizing feedback from existing advanced AI rather than humans is an important method to scale supervisory signals. However, it is highly challenging for AI to understand human intentions and…

计算与语言 · 计算机科学 2024-06-18 Rong Bao , Rui Zheng , Shihan Dou , Xiao Wang , Enyu Zhou , Bo Wang , Qi Zhang , Liang Ding , Dacheng Tao

Large Language Models (LLMs) have become pivotal in advancing natural language processing, yet their potential to perpetuate biases poses significant concerns. This paper introduces a new framework employing Direct Preference Optimization…

计算与语言 · 计算机科学 2024-07-22 Ahmed Allam

Preference optimization is a critical post-training technique used to align large language models (LLMs) with human preferences, typically by fine-tuning on ranked response pairs. While methods like Direct Preference Optimization (DPO) have…

计算与语言 · 计算机科学 2025-11-12 Rhitabrat Pokharel , Yufei Tao , Ameeta Agrawal

Large language models (LLMs) have shown impressive success in various applications. However, these models are often not well aligned with human intents, which calls for additional treatments on them; that is, the alignment problem. To make…

计算与语言 · 计算机科学 2024-06-24 Jiale Cheng , Xiao Liu , Kehan Zheng , Pei Ke , Hongning Wang , Yuxiao Dong , Jie Tang , Minlie Huang

As large language models (LLMs) demonstrate increasingly advanced capabilities, aligning their behaviors with human values and preferences becomes crucial for their wide adoption. While previous research focuses on general alignment to…

计算与语言 · 计算机科学 2024-12-17 Shujin Wu , May Fung , Cheng Qian , Jeonghwan Kim , Dilek Hakkani-Tur , Heng Ji

Large language models (LLMs) are typically aligned with population-level preferences, despite substantial variation across individual users. We introduce POPI, a user-level personalization framework that separates the problem into two…

计算与语言 · 计算机科学 2026-04-28 Yizhuo Chen , Xin Liu , Ruijie Wang , Zheng Li , Pei Chen , Changlong Yu , Qingyu Yin , Priyanka Nigam , Meng Jiang , Bing 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