arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1602.05352cs.LGcs.AIcs.IR
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作为治疗方法的建议:去偏见学习和评价

Recommendations as Treatments: Debiasing Learning and Evaluation

Cornell University(康奈尔大学)

Tobias Schnabel, Adith Swaminathan, Ashudeep Singh, Navin Chandak, Thorsten Joachims

摘要:

大多数用于评估和训练推荐系统的数据都会受到选择偏差的影响,无论是通过用户的自我选择还是通过推荐系统本身的行为。在本文中,我们提供了一个原则性的方法来处理选择偏差,适应模型和估计技术的因果推理。该方法导致无偏的性能估计,尽管有偏的数据,并提供了一个矩阵分解方法,大大提高了预测性能的真实世界的数据。我们从理论上和经验上表征的方法的鲁棒性,发现它是非常实用和可扩展的。

英文摘要:

Most data for evaluating and training recommender systems is subject to selection biases, either through self-selection by the users or through the actions of the recommendation system itself. In this paper, we provide a principled approach to handling selection biases, adapting models and estimation techniques from causal inference. The approach leads to unbiased performance estimators despite biased data, and to a matrix factorization method that provides substantially improved prediction performance on real-world data. We theoretically and empirically characterize the robustness of the approach, finding that it is highly practical and scalable.

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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