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Reinforcement learning from human feedback (RLHF) has proven effective in aligning large language models (LLMs) with human preferences, but gathering high-quality preference labels is expensive. RL from AI Feedback (RLAIF), introduced in…

Reinforcement Learning from Human Feedback (RLHF) is widely used for aligning large language models, yet practitioners face a persistent puzzle: improving safety often reduces fairness, scaling to diverse populations becomes computationally…

机器学习 · 计算机科学 2025-11-26 Subramanyam Sahoo , Aman Chadha , Vinija Jain , Divya Chaudhary

Designing a reinforcement learning from human feedback (RLHF) algorithm to approximate a human's unobservable reward function requires assuming, implicitly or explicitly, a model of human preferences. A preference model that poorly…

机器学习 · 计算机科学 2026-04-14 Stephane Hatgis-Kessell , W. Bradley Knox , Serena Booth , Peter Stone

Reinforcement Learning from Human Feedback (RLHF) has shown potential in qualitative tasks where easily defined performance measures are lacking. However, there are drawbacks when RLHF is commonly used to optimize for average human…

人工智能 · 计算机科学 2024-06-05 Li Ding , Jenny Zhang , Jeff Clune , Lee Spector , Joel Lehman

In this paper, we study Reinforcement Learning from Demonstrations (RLfD) that improves the exploration efficiency of Reinforcement Learning (RL) by providing expert demonstrations. Most of existing RLfD methods require demonstrations to be…

机器学习 · 计算机科学 2019-11-26 Mingxuan Jing , Xiaojian Ma , Wenbing Huang , Fuchun Sun , Chao Yang , Bin Fang , Huaping Liu

In recent times, Reinforcement learning (RL) has been widely applied to many challenging tasks. However, in order to perform well, it requires access to a good reward function which is often sparse or manually engineered with scope for…

机器学习 · 计算机科学 2024-09-25 Yuxuan Li , Srijita Das , Matthew E. Taylor

Great success has been reported using Reinforcement Learning from Human Feedback (RLHF) to align large language models, with open preference datasets enabling wider experimentation, particularly for "helpfulness" in tasks like dialogue and…

计算与语言 · 计算机科学 2024-07-12 Prasann Singhal , Tanya Goyal , Jiacheng Xu , Greg Durrett

Traditional software fault injection methods, while foundational, face limitations in adequately representing real-world faults, offering customization, and requiring significant manual effort and expertise. This paper introduces a novel…

软件工程 · 计算机科学 2024-04-12 Domenico Cotroneo , Pietro Liguori

Traditional Reinforcement Learning from Human Feedback (RLHF) often relies on reward models, frequently assuming preference structures like the Bradley--Terry model, which may not accurately capture the complexities of real human…

We argue for the epistemic and ethical advantages of pluralism in Reinforcement Learning from Human Feedback (RLHF) in the context of Large Language Models (LLM). Drawing on social epistemology and pluralist philosophy of science, we…

计算机与社会 · 计算机科学 2025-05-27 Kristian González Barman , Simon Lohse , Henk de Regt

The development of Large Language Models (LLMs) often confronts challenges stemming from the heavy reliance on human annotators in the reinforcement learning with human feedback (RLHF) framework, or the frequent and costly external queries…

计算与语言 · 计算机科学 2025-03-04 Shangding Gu , Alois Knoll , Ming Jin

Past analyses of reinforcement learning from human feedback (RLHF) assume that the human evaluators fully observe the environment. What happens when human feedback is based only on partial observations? We formally define two failure cases:…

机器学习 · 计算机科学 2024-11-19 Leon Lang , Davis Foote , Stuart Russell , Anca Dragan , Erik Jenner , Scott Emmons

Learning from human feedback (LHF) -- and in particular learning from pairwise preferences -- has recently become a crucial ingredient in training large language models (LLMs), and has been the subject of much research. Most recent works…

机器学习 · 计算机科学 2024-01-11 Vincent Dumoulin , Daniel D. Johnson , Pablo Samuel Castro , Hugo Larochelle , Yann Dauphin

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

Learning from human feedback~(LHF) assumes that expert judgments, appropriately aggregated, yield valid ground truth for training and evaluating AI systems. We tested this assumption in mental health, where high safety stakes make expert…

An important goal in artificial intelligence is to create agents that can both interact naturally with humans and learn from their feedback. Here we demonstrate how to use reinforcement learning from human feedback (RLHF) to improve upon…

Learning from human feedback is a prominent technique to align the output of large language models (LLMs) with human expectations. Reinforcement learning from human feedback (RLHF) leverages human preference signals that are in the form of…

计算与语言 · 计算机科学 2023-11-27 Di Jin , Shikib Mehri , Devamanyu Hazarika , Aishwarya Padmakumar , Sungjin Lee , Yang Liu , Mahdi Namazifar

Reinforcement Learning from human feedback (RLHF) has been shown a promising direction for aligning generative models with human intent and has also been explored in recent works for alignment of diffusion generative models. In this work,…

机器学习 · 计算机科学 2024-09-16 Hanyang Zhao , Haoxian Chen , Ji Zhang , David D. Yao , Wenpin Tang

Reinforcement Learning from Human Feedback (RLHF) allows us to train models, such as language models (LMs), to follow complex human preferences. In RLHF for LMs, we first train an LM using supervised fine-tuning, sample pairs of responses,…

机器学习 · 计算机科学 2025-07-22 Johannes Ackermann , Takashi Ishida , Masashi Sugiyama

Reinforcement learning from Human Feedback (RLHF) learns from preference signals, while standard Reinforcement Learning (RL) directly learns from reward signals. Preferences arguably contain less information than rewards, which makes…

机器学习 · 计算机科学 2023-11-07 Yuanhao Wang , Qinghua Liu , Chi Jin