arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2009.07518cs.LGcs.AIstat.ML
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部分盗贼与半盗贼:充分利用稀缺的用户反馈

Partial Bandit and Semi-Bandit: Making the Most Out of Scarce Users' Feedback

Kara Technology - Dpt R&D(Kara Technology - 研发部);Groupe ESEO - ERIS(ESEO集团 - ERIS)

Alexandre Letard, Tassadit Amghar, Olivier Camp, Nicolas Gutowski

摘要:

最近的多臂强盗(MAB)和组合多臂强盗(COM-MAB)的工作显示出良好的结果的全球准确性度量。在推荐系统的情况下,这可以通过个性化来实现。然而,对于组合在线学习方法,个性化意味着大量的用户反馈。当用户需要直接和频繁地征求时,这种反馈可能很难获得。对于正在进行业务数字化的许多活动领域来说,在线学习是不可避免的。因此,已经实现了允许隐式用户反馈检索的许多方法。然而,这种隐含的反馈可能会误导或低效的代理的学习。在这里,我们提出了一种新的方法,减少了显式反馈所需的组合多臂强盗(COM-MAB)算法的数量,同时提供了类似的水平的全局精度和学习效率的经典竞争方法。在本文中,我们提出了一种新的方法来考虑用户的反馈,并使用三种不同的策略进行评估。尽管有限数量的反馈返回的用户(低至20%的总数),我们的方法获得了类似的结果,那些国家的最先进的方法。

英文摘要:

Recent works on Multi-Armed Bandits (MAB) and Combinatorial Multi-Armed Bandits (COM-MAB) show good results on a global accuracy metric. This can be achieved, in the case of recommender systems, with personalization. However, with a combinatorial online learning approach, personalization implies a large amount of user feedbacks. Such feedbacks can be hard to acquire when users need to be directly and frequently solicited. For a number of fields of activities undergoing the digitization of their business, online learning is unavoidable. Thus, a number of approaches allowing implicit user feedback retrieval have been implemented. Nevertheless, this implicit feedback can be misleading or inefficient for the agent's learning. Herein, we propose a novel approach reducing the number of explicit feedbacks required by Combinatorial Multi Armed bandit (COM-MAB) algorithms while providing similar levels of global accuracy and learning efficiency to classical competitive methods. In this paper we present a novel approach for considering user feedback and evaluate it using three distinct strategies. Despite a limited number of feedbacks returned by users (as low as 20% of the total), our approach obtains similar results to those of state of the art approaches.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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