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English(EN) Learning from What You Retrieve: Online RL Fine-Tuning for Semantic Retrieval

新的PAO方法通过选择性强化学习更新增强语义检索

研究人员开发了一种名为PAO(仅正优势)的新型强化学习方法,以改进语义检索系统。在文档索引冻结(一种常见的工业限制)的情况下,标准的强化学习方法会降低嵌入几何。PAO通过仅选择性地对具有正优势的检索项应用梯度更新来解决此问题,从而在将查询嵌入拉向高奖励区域的同时保持拓扑稳定性。实验表明,PAO在工业和公共数据集上的表现均显著优于标准的强化学习和蒸馏基线。 AI

影响 这项研究可能带来更准确、更稳定的语义检索系统,尤其是在电子商务和其他大规模应用中。

排序理由 该集群包含一篇详细介绍改进语义检索系统新方法的学术论文。

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新的PAO方法通过选择性强化学习更新增强语义检索

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该集群包含一篇详细介绍改进语义检索系统新方法的学术论文。
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报道来源 [2]

  1. arXiv cs.AI TIER_1 English(EN) · Shaowei Wei, Chong Huang, Songtao Fang, Jin Zhang, Zhuojun Wang, Chengfu Huo ·

    从检索内容中学习:用于语义检索的在线强化学习微调

    arXiv:2608.30753v1 Announce Type: cross Abstract: In large-scale e-commerce retrieval, dual-encoder retrievers are op- timized for contrastive similarity, whereas downstream rerankers capture finer-grained relevance preferences; this objective mis- match limits end-to-end retriev…

  2. arXiv cs.IR (Information Retrieval) TIER_1 English(EN) · Chengfu Huo ·

    从检索内容中学习:用于语义检索的在线强化学习微调

    In large-scale e-commerce retrieval, dual-encoder retrievers are op- timized for contrastive similarity, whereas downstream rerankers capture finer-grained relevance preferences; this objective mis- match limits end-to-end retrieval quality. Reinforcement Learning offers a way to…