Towards a Unified View of Preference Learning for Large Language Models: A Survey
On the map: LLM alignment / RLHF / preference optimisation → LLM preference optimization methods
Abstract (arXiv)
Large Language Models (LLMs) exhibit remarkably powerful capabilities. One of the crucial factors to achieve success is aligning the LLM's output with human preferences. This alignment process often requires only a small amount of data to efficiently enhance the LLM's performance. While effective, research in this area spans multiple domains, and the methods involved are relatively complex to understand. The relationships between different methods have been under-explored, limiting the development of the preference alignment. In light of this, we break down the existing popular alignment strategies into different components and provide a unified framework to study the current alignment strategies, thereby establishing connections among them. In this survey, we decompose all the strategies in preference learning into four components: model, data, feedback, and algorithm. This unified view offers an in-depth understanding of existing alignment algorithms and also opens up possibilities to synergize the strengths of different strategies. Furthermore, we present detailed working examples of prevalent existing algorithms to facilitate a comprehensive understanding for the readers. Finally, based on our unified perspective, we explore the challenges and future research directions for aligning large language models with human preferences.
Key facts. Cited by 17 papers in the map (data through 7 Oct 2026). Placed in LLM preference optimization methods, one of 10 directions in LLM alignment / RLHF / preference optimisation. Builds on 143 of its 170 references that are in the map. First posted on arXiv 4 Sep 2024.
Builds on
143 of 170 references.
Closest ancestors · 38
Same direction, newest first
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- 2024Don't Forget Your Reward Values: Language Model Alignment via Value-based Calibration25 Feb
- 2024Smaug: Fixing Failure Modes of Preference Optimisation with DPO-Positive20 Feb
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- 2023Preference Ranking Optimization for Human Alignment30 Jun
- 2022Training language models to follow instructions with human feedback4 Mar
Other references · 105
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- 2025Contrastive Weak-to-strong Generalization9 Oct 2025
- 2025RLRF: Competitive Search Agent Design via Reinforcement Learning from Ranker Feedback5 Oct 2025
- 2025Well Begun is Half Done: Low-resource Preference Alignment by Weak-to-Strong Decoding9 Jun 2025
- 2025GVPO: Group Variance Policy Optimization for Large Language Model Post-Training28 Apr 2025
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- 2024Fine-tuning Large Language Models with Limited Data: A Survey and Practical Guide14 Nov 2024
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- 2024A Survey on Data Synthesis and Augmentation for Large Language Models16 Oct 2024
- 2024MACPO: Weak-to-Strong Alignment via Multi-Agent Contrastive Preference Optimization10 Oct 2024
- 2025Test-Time Preference Optimization: On-the-Fly Alignment via Iterative Textual Feedbackcited by 41
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- 2025GVPO: Group Variance Policy Optimization for Large Language Model Post-Trainingcited by 32
- 2025Well Begun is Half Done: Low-resource Preference Alignment by Weak-to-Strong Decodingcited by 7
- 2026One Size, Many Fits: Aligning Diverse Group-Wise Click Preferences in Large-Scale Advertising Image Generationcited by 4
- 2025InCo-DPO: Balancing Distribution Shift and Data Quality for Enhanced Preference Optimizationcited by 3
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- 2025Contrastive Weak-to-strong Generalizationcited by 2
- 2025Constrained Language Model Policy Optimization via Risk-aware Stepwise Alignmentcited by 0
- 2026One Size, Many Fits: Aligning Diverse Group-Wise Click Preferences in Large-Scale Advertising Image Generation2 Feb 2026
- 2025Constrained Language Model Policy Optimization via Risk-aware Stepwise Alignment30 Dec 2025
- 2025Contrastive Weak-to-strong Generalization9 Oct 2025
- 2025Well Begun is Half Done: Low-resource Preference Alignment by Weak-to-Strong Decoding9 Jun 2025
- 2025GVPO: Group Variance Policy Optimization for Large Language Model Post-Training28 Apr 2025
- 2025Leveraging Robust Optimization for LLM Alignment under Distribution Shifts8 Apr 2025
- 2025InCo-DPO: Balancing Distribution Shift and Data Quality for Enhanced Preference Optimization20 Mar 2025
- 2025A Survey of Direct Preference Optimization12 Mar 2025
- 2025Test-Time Preference Optimization: On-the-Fly Alignment via Iterative Textual Feedback22 Jan 2025
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