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Direct Preference Optimization (DPO) has become a widely used training method for the instruction fine-tuning of large language models (LLMs). In this work, we explore an under-investigated aspect of DPO - its dependency on the reference…

计算与语言 · 计算机科学 2024-08-23 Yixin Liu , Pengfei Liu , Arman Cohan

The rapidly increasing capabilities of large language models (LLMs) raise an urgent need to align AI systems with diverse human preferences to simultaneously enhance their usefulness and safety, despite the often conflicting nature of these…

机器学习 · 计算机科学 2024-03-06 Zixuan Liu , Xiaolin Sun , Zizhan Zheng

Recent developments in Direct Preference Optimization (DPO) allow large language models (LLMs) to function as implicit ranking models by maximizing the margin between preferred and non-preferred responses. In practice, user feedback on such…

Large language models in the past have typically relied on some form of reinforcement learning with human feedback (RLHF) to better align model responses with human preferences. However, because of oft-observed instabilities when…

计算与语言 · 计算机科学 2024-07-15 Xiangkun Hu , Tong He , David Wipf

Aligning large language models (LLMs) with human preferences in federated learning (FL) is challenging due to decentralized, privacy-sensitive, and highly non-IID preference data. Direct Preference Optimization (DPO) offers an efficient…

机器学习 · 计算机科学 2026-03-23 Kewen Zhu , Liping Yi , Zhiming Zhao , Zhuang Qi , Han Yu , Qinghua Hu

The widespread application of large language models (LLMs) raises increasing demands on ensuring safety or imposing constraints, such as reducing harmful content and adhering to predefined rules. While there have been several works studying…

机器学习 · 计算机科学 2026-02-13 Yihan Du , Seo Taek Kong , R. Srikant

Direct Preference Optimization (DPO) has become a popular approach for aligning language models using pairwise preferences. However, in practical post-training pipelines, on-policy generation typically yields multiple candidate responses…

机器学习 · 计算机科学 2025-06-23 Taneesh Gupta , Rahul Madhavan , Xuchao Zhang , Nagarajan Natarajan , Chetan Bansal , Saravan Rajmohan

The dominant framework for alignment of large language models (LLM), whether through reinforcement learning from human feedback or direct preference optimisation, is to learn from preference data. This involves building datasets where each…

Machine unlearning has gained increasing attention in recent years, as a promising technique to selectively remove unwanted privacy or copyrighted information from Large Language Models that are trained on a massive scale of human data.…

计算与语言 · 计算机科学 2026-04-20 Junyi Li , Yongqiang Chen , Ningning Ding

In this work, we introduce a methodology for alignment designed to enhance the ability of large language models (LLMs) to articulate their reasoning (self-explanation) even in the absence of annotated rationale explanations. Our alignment…

人工智能 · 计算机科学 2024-10-18 Luis Felipe Villa-Arenas , Ata Nizamoglu , Qianli Wang , Sebastian Möller , Vera Schmitt

The alignment of language models with human preferences is vital for their application in real-world tasks. The problem is formulated as optimizing the model's policy to maximize the expected reward that reflects human preferences with…

计算与语言 · 计算机科学 2024-06-06 Haozhe Ji , Cheng Lu , Yilin Niu , Pei Ke , Hongning Wang , Jun Zhu , Jie Tang , Minlie Huang

Large Language Models (LLMs) can become outdated over time as they may lack updated world knowledge, leading to factual knowledge errors and gaps. Knowledge Editing (KE) aims to overcome this challenge using weight updates that do not…

计算与语言 · 计算机科学 2024-09-25 Amit Rozner , Barak Battash , Lior Wolf , Ofir Lindenbaum

Despite the advanced capabilities of large language models (LLMs), their temporal reasoning ability remains underdeveloped. Prior works have highlighted this limitation, particularly in maintaining temporal consistency when understanding…

计算与语言 · 计算机科学 2025-06-18 Jongho Kim , Seung-won Hwang

Ensuring alignment with human preferences is a crucial characteristic of large language models (LLMs). Presently, the primary alignment methods, RLHF and DPO, require extensive human annotation, which is expensive despite their efficacy.…

计算与语言 · 计算机科学 2024-04-16 Haotian Luo

Direct Preference Optimization (DPO) has emerged as a simple and effective approach for aligning large language models (LLMs) with human preferences, bypassing the need for a learned reward model. Despite its growing adoption, a fundamental…

机器学习 · 计算机科学 2025-11-10 Yu Pan , Zhongze Cai , Guanting Chen , Huaiyang Zhong , Chonghuan Wang

Large Language Models (LLMs) have demonstrated remarkable capabilities through pretraining and alignment. However, superior short-context LLMs may underperform in long-context scenarios due to insufficient long-context alignment. This…

计算与语言 · 计算机科学 2025-03-04 Guanzheng Chen , Xin Li , Michael Qizhe Shieh , Lidong Bing

In this article, we investigate the alignment of Large Language Models according to human preferences. We discuss the features of training a Preference Model, which simulates human preferences, and the methods and details we found essential…

机器学习 · 计算机科学 2024-10-03 Alexey Kutalev , Sergei Markoff

Preference modeling techniques, such as direct preference optimization (DPO), has shown effective in enhancing the generalization abilities of large language model (LLM). However, in tasks involving video instruction-following, providing…

计算机视觉与模式识别 · 计算机科学 2024-04-03 Ruohong Zhang , Liangke Gui , Zhiqing Sun , Yihao Feng , Keyang Xu , Yuanhan Zhang , Di Fu , Chunyuan Li , Alexander Hauptmann , Yonatan Bisk , Yiming Yang

Self-generated counterfactual explanations (SCEs) are minimally modified inputs (minimality) generated by large language models (LLMs) that flip their own predictions (validity), offering a causally grounded approach to unraveling black-box…

计算与语言 · 计算机科学 2026-05-13 Yilong Wang , Qianli Wang , Bohao Chu , Yihong Liu , Jing Yang , Simon Ostermann

Large Language Models (LLMs) have revolutionized artificial intelligence with capabilities in reasoning, coding, and communication, driving innovation across industries. Their true potential depends on effective alignment to ensure correct,…

计算与语言 · 计算机科学 2025-07-25 Bowen Jin , Jinsung Yoon , Zhen Qin , Ziqi Wang , Wei Xiong , Yu Meng , Jiawei Han , Sercan O. Arik