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The alignment of large language models (LLMs) with human preferences remains a key challenge. While post-training techniques like Reinforcement Learning from Human Feedback (RLHF) and Direct Preference Optimization (DPO) have achieved…

人工智能 · 计算机科学 2025-07-11 Qingyu Yin , Chak Tou Leong , Minjun Zhu , Hanqi Yan , Qiang Zhang , Yulan He , Wenjie Li , Jun Wang , Yue Zhang , Linyi Yang

In this paper, we introduce \emph{refined Direct Preference Optimization} (rDPO), a method for improving the behavioral alignment of Large Language Models (LLMs) without the need for human-annotated data. The method involves creating…

计算与语言 · 计算机科学 2024-02-14 Víctor Gallego

How can Large Language Models (LLMs) be aligned with human intentions and values? A typical solution is to gather human preference on model outputs and finetune the LLMs accordingly while ensuring that updates do not deviate too far from a…

计算与语言 · 计算机科学 2024-05-28 Hung Le , Quan Tran , Dung Nguyen , Kien Do , Saloni Mittal , Kelechi Ogueji , Svetha Venkatesh

Aligning large language models (LLMs) with human values and intentions is crucial for their utility, honesty, and safety. Reinforcement learning from human feedback (RLHF) is a popular approach to achieve this alignment, but it faces…

机器学习 · 计算机科学 2025-07-22 Junkang Wu , Xue Wang , Zhengyi Yang , Jiancan Wu , Jinyang Gao , Bolin Ding , Xiang Wang , Xiangnan He

Machine unlearning aims to efficiently eliminate the influence of specific training data, known as the forget set, from the model. However, existing unlearning methods for Large Language Models (LLMs) face a critical challenge: they rely…

计算与语言 · 计算机科学 2025-01-23 Anmol Mekala , Vineeth Dorna , Shreya Dubey , Abhishek Lalwani , David Koleczek , Mukund Rungta , Sadid Hasan , Elita Lobo

In recent years, text-to-speech (TTS) has seen impressive advancements through large-scale language models, achieving human-level speech quality. Integrating human feedback has proven effective for enhancing robustness in these systems.…

音频与语音处理 · 电气工程与系统科学 2025-09-03 Kangxiang Xia , Xinfa Zhu , Jixun Yao , Lei Xie

Optimizing large language models (LLMs) for multi-turn conversational outcomes remains a significant challenge, especially in goal-oriented settings like AI marketing or sales agents who facilitate transactions via messaging platforms. The…

机器学习 · 计算机科学 2025-11-27 Daniel R. Jiang , Jalaj Bhandari , Yukai Yang , Rémi Munos , Tyler Lu

In the realm of large language models (LLMs), the ability of models to accurately follow instructions is paramount as more agents and applications leverage LLMs for construction, where the complexity of instructions are rapidly increasing.…

计算与语言 · 计算机科学 2025-07-18 Xinghua Zhang , Haiyang Yu , Cheng Fu , Fei Huang , Yongbin Li

Aligning language models (LMs) with curated human feedback is critical to control their behaviors in real-world applications. Several recent policy optimization methods, such as DPO and SLiC, serve as promising alternatives to the…

Reinforcement Learning from Human Feedback (RLHF) is a key method for aligning large language models (LLMs) with human preferences. However, current offline alignment approaches like DPO, IPO, and SLiC rely heavily on fixed preference…

机器学习 · 计算机科学 2024-06-25 Mucong Ding , Souradip Chakraborty , Vibhu Agrawal , Zora Che , Alec Koppel , Mengdi Wang , Amrit Bedi , Furong Huang

Reinforcement Learning (RL) algorithms for safety alignment of Large Language Models (LLMs), such as Direct Preference Optimization (DPO), encounter the challenge of distribution shift. Current approaches typically address this issue…

计算与语言 · 计算机科学 2025-06-17 Qiyuan Deng , Xuefeng Bai , Kehai Chen , Yaowei Wang , Liqiang Nie , Min Zhang

The advent of large language models (LLMs) has revolutionized natural language processing, enabling unprecedented capabilities in understanding and generating human-like text. However, the computational cost and convergence times associated…

计算与语言 · 计算机科学 2024-11-26 Kerim Büyükakyüz

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

Large language models (LLMs) achieve remarkable performance in code generation tasks. However, a significant performance disparity persists between popular programming languages (e.g., Python, C++) and others. To address this capability…

计算与语言 · 计算机科学 2025-12-05 Haoyuan Wu , Rui Ming , Jilong Gao , Hangyu Zhao , Xueyi Chen , Yikai Yang , Haisheng Zheng , Zhuolun He , Bei Yu

We propose Soft Preference Optimization (SPO), a method for aligning generative models, such as Large Language Models (LLMs), with human preferences, without the need for a reward model. SPO optimizes model outputs directly over a…

机器学习 · 计算机科学 2024-10-07 Arsalan Sharifnassab , Saber Salehkaleybar , Sina Ghiassian , Surya Kanoria , Dale Schuurmans

Prompt engineering, as an efficient and effective way to leverage Large Language Models (LLM), has drawn a lot of attention from the research community. The existing research primarily emphasizes the importance of adapting prompts to…

计算与语言 · 计算机科学 2024-07-08 Yuyan Chen , Zhihao Wen , Ge Fan , Zhengyu Chen , Wei Wu , Dayiheng Liu , Zhixu Li , Bang Liu , Yanghua Xiao

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

Fine-tuning pre-trained Large Language Models (LLMs) is essential to align them with human values and intentions. This process often utilizes methods like pairwise comparisons and KL divergence against a reference LLM, focusing on the…

计算与语言 · 计算机科学 2024-09-02 Yongcheng Zeng , Guoqing Liu , Weiyu Ma , Ning Yang , Haifeng Zhang , Jun Wang

In real-world services such as ChatGPT, aligning models based on user feedback is crucial for improving model performance. However, due to the simplicity and convenience of providing feedback, users typically offer only basic binary…

机器学习 · 计算机科学 2025-06-10 Seungjae Jung , Gunsoo Han , Daniel Wontae Nam , Kyoung-Woon On

A critical component of the current generation of language models is preference alignment, which aims to precisely control the model's behavior to meet human needs and values. The most notable among such methods is Reinforcement Learning…

人工智能 · 计算机科学 2024-10-22 Oh Joon Kwon , Daiki E. Matsunaga , Kee-Eung Kim