GroupDPO - 标签 - lilfry's libraryhttps://lilfry09.github.io/tags/groupdpo/GroupDPO - 标签 - lilfry's libraryHugo -- gohugo.iozh-CNlilfry@sjtu.edu.cn (lilfry)lilfry@sjtu.edu.cn (lilfry)All rights reserved.Tue, 05 May 2026 00:00:00 +0800GroupDPO: Memory efficient Group-wise Direct Preference Optimizationhttps://lilfry09.github.io/ai/groupdpo-group-wise-preference-optimization/Tue, 05 May 2026 00:00:00 +0800fryhttps://lilfry09.github.io/ai/groupdpo-group-wise-preference-optimization/GroupDPO 将 DPO 从一正一负的单对偏好扩展到多候选回答组，并通过一阶梯度等价的 surrogate loss 降低显存开销。