The Impact of Preference Agreement in Reinforcement Learning from Human Feedback: A Case Study in Summarization
On the map: LLM alignment / RLHF / preference optimisation → Human values and AI feedback alignment
Abstract (arXiv)
Reinforcement Learning from Human Feedback (RLHF) can be used to capture complex and nuanced properties of text generation quality. As a result, the task of text summarization has been identified as a good candidate for this process. In this paper, we explore how preference agreement impacts the efficacy of RLHF for summarization. We show that sampling human preferences to include a range of annotator agreement results in (1) higher accuracy reward models and (2) alters the characteristics of quality captured. We additionally show improvements in downstream generation when using a reward model trained with a range of preference agreements. Our contributions have implications for the design of synthetic datasets as well as the importance of considering quality differentials in comparison-based data.
Key facts. Cited by 5 papers in the map (data through 14 Oct 2026). Placed in Human values and AI feedback alignment, one of 10 directions in LLM alignment / RLHF / preference optimisation. Builds on 7 of its 23 references that are in the map. First posted on arXiv 2 Nov 2023.
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- 2022Training language models to follow instructions with human feedbackcited by 15,971
- 2017Deep reinforcement learning from human preferencescited by 3,912
- 2022Training a Helpful and Harmless Assistant with Reinforcement Learning from Human Feedbackcited by 3,720
- 2020SummEval: Re-evaluating Summarization Evaluationcited by 674
- 2021Dealing with Disagreements: Looking Beyond the Majority Vote in Subjective Annotationscited by 314
- 2015Statistical modality tagging from rule-based annotations and crowdsourcingcited by 6
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Citing papers per year: 2024: 3; 2025: 2.
5 papers.
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- 2025TaP: A Taxonomy-Guided Framework for Automated and Scalable Preference Data Generation30 Jun 2025
- 2025Reranking-based Generation for Unbiased Perspective Summarization19 Jun 2025
- 2024Multilingual Large Language Models: A Systematic Survey17 Nov 2024
- 2024The PRISM Alignment Dataset: What Participatory, Representative and Individualised Human Feedback Reveals About the Subjective and Multicultural Alignment of Large Language Models24 Apr 2024
- 2024WARM: On the Benefits of Weight Averaged Reward Models22 Jan 2024
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- 2026Why Summaries Turn Neutral: Policy Attribution for Sentiment Drift in Reinforcement Learning from Human Feedback
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- 2024West-of-N: Synthetic Preferences for Self-Improving Reward Models
- 2022Make The Most of Prior Data: A Solution for Interactive Text Summarization with Preference Feedback