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DPO-Shift:一个参数可控改变DPO分布,缓解似然偏移
在人工智能领域,如何引导大语言模型产出贴合人类偏好的内容,已成为备受瞩目的研究焦点。强化学习从人类反馈中学习(RLHF)作为该领域的重要方法之一,虽成效显著,但也暴露出多阶段优化流程复杂、计算负担沉重等弊端。而直接偏好优化(DPO)及其衍生变体作为离 ...
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