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相关论文: Detecting Prefix Bias in LLM-based Reward Models

200 篇论文

In recent years, Large Language Models (LLMs) have witnessed a remarkable surge in prevalence, altering the landscape of natural language processing and machine learning. One key factor in improving the performance of LLMs is alignment with…

计算与语言 · 计算机科学 2023-10-17 Keita Saito , Akifumi Wachi , Koki Wataoka , Youhei Akimoto

Reinforcement learning from human feedback (RLHF) has been widely adopted to align language models (LMs) with human preference. Prior RLHF works typically take a bandit formulation, which, though intuitive, ignores the sequential nature of…

计算与语言 · 计算机科学 2025-01-07 Yueqin Yin , Shentao Yang , Yujia Xie , Ziyi Yang , Yuting Sun , Hany Awadalla , Weizhu Chen , Mingyuan Zhou

To ensure that large language model (LLM) responses are helpful and non-toxic, a reward model trained on human preference data is usually used. LLM responses with high rewards are then selected through best-of-$n$ (BoN) sampling or the LLM…

机器学习 · 计算机科学 2024-07-04 Adam X. Yang , Maxime Robeyns , Thomas Coste , Zhengyan Shi , Jun Wang , Haitham Bou-Ammar , Laurence Aitchison

We introduce ALaRM, the first framework modeling hierarchical rewards in reinforcement learning from human feedback (RLHF), which is designed to enhance the alignment of large language models (LLMs) with human preferences. The framework…

计算与语言 · 计算机科学 2024-03-19 Yuhang Lai , Siyuan Wang , Shujun Liu , Xuanjing Huang , Zhongyu Wei

The utility of reinforcement learning is limited by the alignment of reward functions with the interests of human stakeholders. One promising method for alignment is to learn the reward function from human-generated preferences between…

Current preference learning methods achieve high accuracy on standard benchmarks but exhibit significant performance degradation when objective quality signals are removed. We introduce WritingPreferenceBench, a dataset of 1,800…

This paper addresses the cost-efficiency aspect of Reinforcement Learning from Human Feedback (RLHF). RLHF leverages datasets of human preferences over outputs of large language models (LLM)s to instill human expectations into LLMs.…

机器学习 · 计算机科学 2024-12-13 Guoxi Zhang , Jiuding Duan

Reward models learned from human preferences are central to aligning large language models (LLMs) via reinforcement learning from human feedback, yet they are often vulnerable to reward hacking due to noisy annotations and systematic biases…

机器学习 · 计算机科学 2026-02-12 Zhibin Duan , Guowei Rong , Zhuo Li , Bo Chen , Mingyuan Zhou , Dandan Guo

Generating complex behaviors that satisfy the preferences of non-expert users is a crucial requirement for AI agents. Interactive reward learning from trajectory comparisons (a.k.a. RLHF) is one way to allow non-expert users to convey…

人工智能 · 计算机科学 2023-03-01 Lin Guan , Karthik Valmeekam , Subbarao Kambhampati

Recent advances in generative AI have been driven by alignment techniques such as reinforcement learning from human feedback (RLHF). RLHF and related techniques typically involve constructing a dataset of binary or ranked choice human…

机器学习 · 计算机科学 2025-04-01 Kailas Vodrahalli , Wei Wei , James Zou

Reward models are a key component of large language model alignment, serving as proxies for human preferences during training. However, existing evaluations focus primarily on broad instruction-following benchmarks, providing limited…

计算与语言 · 计算机科学 2026-05-07 Gayane Ghazaryan , Esra Dönmez

ChatGLM is a free-to-use AI service powered by the ChatGLM family of large language models (LLMs). In this paper, we present the ChatGLM-RLHF pipeline -- a reinforcement learning from human feedback (RLHF) system -- designed to enhance…

Reinforcement Learning with Human Feedback (RLHF) has been demonstrated to significantly enhance the performance of large language models (LLMs) by aligning their outputs with desired human values through instruction tuning. However, RLHF…

计算与语言 · 计算机科学 2024-03-06 Zhang Ze Yu , Lau Jia Jaw , Zhang Hui , Bryan Kian Hsiang Low

Reinforcement Learning from Human Feedback (RLHF) plays a crucial role in aligning large language models (LLMs) with human values and preferences. However, the quality and stability of the trained reward model largely determine the final…

机器学习 · 计算机科学 2025-12-17 Chunjin Jian , Xinhua Zhu

Reward modeling (RM), which captures human preferences to align large language models (LLMs), is increasingly employed in tasks such as model finetuning, response filtering, and ranking. However, due to the inherent complexity of human…

计算与语言 · 计算机科学 2026-04-09 Pankayaraj Pathmanathan , Furong Huang

Reinforcement Learning from Human Feedback (RLHF) aligns language models with human preferences but is computationally expensive. We explore two approaches that leverage human gaze modeling to enhance RLHF: (1) gaze-aware reward models and…

机器学习 · 计算机科学 2025-07-17 Karim Galliamov , Ivan Titov , Ilya Pershin

Reinforcement learning from human feedback usually models preferences using a reward function that does not distinguish between people. We argue that this is unlikely to be a good design choice in contexts with high potential for…

Reinforcement Learning from Human Feedback (RLHF) is a popular method for aligning Language Models (LM) with human values and preferences. RLHF requires a large number of preference pairs as training data, which are often used in both the…

计算与语言 · 计算机科学 2024-08-07 Tim Baumgärtner , Yang Gao , Dana Alon , Donald Metzler

The effectiveness of reinforcement learning (RL) agents in continuous control robotics tasks is mainly dependent on the design of the underlying reward function, which is highly prone to reward hacking. A misalignment between the reward…

Building neural reward models from human preferences is a pivotal component in reinforcement learning from human feedback (RLHF) and large language model alignment research. Given the scarcity and high cost of human annotation, how to…

计算与语言 · 计算机科学 2025-02-10 Yunyi Shen , Hao Sun , Jean-François Ton