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Reinforcement Learning from AI Feedback (RLAIF) has the advantages of shorter annotation cycles and lower costs over Reinforcement Learning from Human Feedback (RLHF), making it highly efficient during the rapid strategy iteration periods…

Reinforcement learning (RL) can align language models with non-differentiable reward signals, such as human preferences. However, a major challenge arises from the sparsity of these reward signals - typically, there is only a single reward…

计算与语言 · 计算机科学 2024-02-20 Meng Cao , Lei Shu , Lei Yu , Yun Zhu , Nevan Wichers , Yinxiao Liu , Lei Meng

The success of reinforcement learning from human feedback (RLHF) in language model alignment is strongly dependent on the quality of the underlying reward model. In this paper, we present a novel approach to improve reward model quality by…

计算与语言 · 计算机科学 2024-10-28 Alizée Pace , Jonathan Mallinson , Eric Malmi , Sebastian Krause , Aliaksei Severyn

Reinforcement Learning from Human Feedback (RLHF) has become a cornerstone for aligning large language models (LLMs) with human values. However, existing approaches struggle to capture the multi-dimensional, distributional nuances of human…

计算与语言 · 计算机科学 2025-05-20 Zelei Cheng , Xin-Qiang Cai , Yuting Tang , Pushi Zhang , Boming Yang , Masashi Sugiyama , Xinyu Xing

Reinforcement learning (RL) often struggles with reward misalignment, where agents optimize given rewards but fail to exhibit the desired behaviors. This arises when the reward function incentivizes proxy behaviors misaligned with the true…

机器学习 · 计算机科学 2025-09-19 Mohammad Saif Nazir , Chayan Banerjee

We propose a novel reinforcement learning framework for post training large language models that does not rely on human in the loop feedback. Instead, our approach uses cross attention signals within the model itself to derive a self…

人工智能 · 计算机科学 2025-04-18 Andrew Kiruluta , Andreas Lemos , Priscilla Burity

Reinforcement Learning from Human Feedback (RLHF) has enabled significant advancements within language modeling for powerful, instruction-following models. However, the alignment of these models remains a pressing challenge as the policy…

机器学习 · 计算机科学 2024-06-21 Ahmed M. Ahmed , Rafael Rafailov , Stepan Sharkov , Xuechen Li , Sanmi Koyejo

While Reinforcement Learning from Human Feedback (RLHF) aligns Large Language Models (LLMs) with general, aggregate human preferences, it is suboptimal for learning diverse, individual perspectives. In this work, we study Reinforcement…

Reinforcement Learning with Human Feedback (RLHF) and Reinforcement Learning with Verifiable Rewards (RLVR) are the main RL paradigms used in LLM post-training, each offering distinct advantages. However, RLHF struggles with…

Alignment via reinforcement learning from human feedback (RLHF) has become the dominant paradigm for controlling the quality of outputs from large language models (LLMs). However, existing theories do not provide strong justification for…

机器学习 · 计算机科学 2026-05-19 Jihun Yun , Juno Kim , Jongho Park , Junhyuck Kim , Jongha Jon Ryu , Jaewoong Cho , Kwang-Sung Jun

Multi-Agent Reinforcement Learning (MARL) has shown promise in solving complex problems involving cooperation and competition among agents, such as an Unmanned Surface Vehicle (USV) swarm used in search and rescue, surveillance, and vessel…

多智能体系统 · 计算机科学 2025-03-10 Hyeonjun Kim , Kanghoon Lee , Junho Park , Jiachen Li , Jinkyoo Park

While Reinforcement Learning from Human Feedback (RLHF) has shown promise in aligning generative AI, we present empirical evidence that it can also cause severe, systematic misalignment. We hypothesize that this stems from evaluator…

机器学习 · 计算机科学 2025-06-11 Kaiqu Liang , Haimin Hu , Ryan Liu , Thomas L. Griffiths , Jaime Fernández Fisac

Reinforcement Learning from Human Feedback (RLHF) has become a popular approach to align language models (LMs) with human preferences. This method involves collecting a large dataset of human pairwise preferences across various text…

A key challenge in training Large Language Models (LLMs) is properly aligning them with human preferences. Reinforcement Learning with Human Feedback (RLHF) uses pairwise comparisons from human annotators to train reward functions and has…

机器学习 · 计算机科学 2025-01-17 Ariel D. Procaccia , Benjamin Schiffer , Shirley Zhang

Reinforcement Learning from Human Feedback (RLHF) has recently surged in popularity, particularly for aligning large language models and other AI systems with human intentions. At its core, RLHF can be viewed as a specialized instance of…

机器学习 · 计算机科学 2025-01-10 Yujie Zhao , Jose Efraim Aguilar Escamill , Weyl Lu , Huazheng Wang

Reinforcement Learning from Human Feedback (RLHF) has shown great potential in fine-tuning Large Language Models (LLMs) to align with human preferences. Existing methods perform preference alignment from a fixed dataset, which can be…

机器学习 · 计算机科学 2025-02-10 Chenjia Bai , Yang Zhang , Shuang Qiu , Qiaosheng Zhang , Kang Xu , Xuelong Li

Reinforcement Learning from Human Feedback (RLHF) is a pivotal technique for empowering large language model (LLM) applications. Compared with the supervised training process of LLMs, the RLHF training process is much more sophisticated,…

分布式、并行与集群计算 · 计算机科学 2025-04-25 Zhiyu Mei , Wei Fu , Kaiwei Li , Guangju Wang , Huanchen Zhang , Yi Wu

Reinforcement learning from human feedback (RLHF) is widely used to train large language models (LLMs). However, it is unclear whether LLMs accurately learn the underlying preferences in human feedback data. We coin the term \textit{Learned…

机器学习 · 计算机科学 2025-09-22 Luke Marks , Amir Abdullah , Clement Neo , Rauno Arike , David Krueger , Philip Torr , Fazl Barez

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

Effective conversational agents like large language models (LLMs) must personalize their interactions to adapt to user preferences, personalities, and attributes across diverse domains like education and healthcare. Current methods like…

计算与语言 · 计算机科学 2025-10-03 Yanming Wan , Jiaxing Wu , Marwa Abdulhai , Lior Shani , Natasha Jaques