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DPO-Shift:一个参数可控改变DPO分布,缓解似然偏移
而直接偏好优化(DPO)及其衍生变体作为离线算法,凭借简单易用、稳定性强等优势,近来广受关注。 DPO主要通过最大化选定响应与拒绝响应间的 ...
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