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English(EN) KTO: Model Alignment as Prospect Theoretic Optimization

新的KTO方法使用前景理论对齐大型语言模型,性能媲美DPO

研究人员推出了一种新颖的大型语言模型与人类反馈对齐的方法,称为KTO(Kahneman-Tversky Optimization)。KTO基于Kahneman和Tversky开发的前景理论框架,该框架描述了人类如何感知随机变量,特别是他们对损失厌恶的倾向。所提出的方法直接根据该前景理论模型最大化生成文本的效用,而不是像直接偏好优化(DPO)等方法那样优化偏好似然性。实验表明,KTO在各种模型规模上都能匹配或超越现有的基于偏好的方法,证明了其在二元期望信号方面的有效性。 AI

影响 引入了一种新的对齐技术,可能在大型语言模型训练中提供改进的性能和不同的理论基础。

排序理由 该集群包含一篇详细介绍LLM新对齐方法的论文。[lever_c_demoted from research: ic=1 ai=1.0]

在 arXiv cs.AI 阅读 →

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新的KTO方法使用前景理论对齐大型语言模型,性能媲美DPO

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该集群包含一篇详细介绍LLM新对齐方法的论文。[lever_c_demoted from research: ic=1 ai=1.0]
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报道来源 [1]

  1. arXiv cs.AI TIER_1 English(EN) · Kawin Ethayarajh, Winnie Xu, Niklas Muennighoff, Dan Jurafsky, Douwe Kiela ·

    KTO:模型对齐作为前景理论优化

    arXiv:2402.01306v5 Announce Type: replace-cross Abstract: Kahneman & Tversky's $\textit{prospect theory}$ tells us that humans perceive random variables in a biased but well-defined manner (1992); for example, humans are famously loss-averse. We show that objectives for aligning …