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Syst."],"published-print":{"date-parts":[[2023,3,31]]},"abstract":"<jats:p>How to effectively mitigate the bias of feedback in recommender systems is an important research topic. In this article, we first describe the generation process of the biased and unbiased feedback in recommender systems via two respective causal diagrams, where the difference between them can be regarded as the source of system-induced biases. We then define this difference as a confounding bias and propose a new perspective on debiased representation learning to alleviate it. Specifically, for the case with biased feedback alone, we derive the conditions that need to be satisfied to obtain a debiased representation from the causal diagrams. Then, we propose a novel framework called debiased information bottleneck (DIB) to optimize these conditions and then find a tractable solution for it. The proposed framework constrains the model to learn a biased embedding vector with independent biased and unbiased components in the training phase, and uses only the unbiased component in the test phase to deliver more accurate recommendations. We further propose a variant of DIB by relaxing the independence between the biased and unbiased components. Finally, we conduct extensive experiments on a public dataset and a real product dataset to verify the effectiveness of the proposed framework.<\/jats:p>\n          <jats:p\/>","DOI":"10.1145\/3568030","type":"journal-article","created":{"date-parts":[[2022,10,25]],"date-time":"2022-10-25T13:26:50Z","timestamp":1666704410000},"page":"1-27","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":17,"title":["Debiased Representation Learning in Recommendation via Information Bottleneck"],"prefix":"10.1145","volume":"1","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-3612-709X","authenticated-orcid":false,"given":"Dugang","family":"Liu","sequence":"first","affiliation":[{"name":"Shenzhen University, Shenzhen, Guangdong, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5997-705X","authenticated-orcid":false,"given":"Pengxiang","family":"Cheng","sequence":"additional","affiliation":[{"name":"Huawei Noah\u2019s Ark Lab, Shenzhen, Guangdong, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2943-7997","authenticated-orcid":false,"given":"Hong","family":"Zhu","sequence":"additional","affiliation":[{"name":"Huawei Noah\u2019s Ark Lab, Shenzhen, Guangdong, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2231-4663","authenticated-orcid":false,"given":"Zhenhua","family":"Dong","sequence":"additional","affiliation":[{"name":"Huawei Noah\u2019s Ark Lab, Shenzhen, Guangdong, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4115-8205","authenticated-orcid":false,"given":"Xiuqiang","family":"He","sequence":"additional","affiliation":[{"name":"Tencent FIT, Shenzhen, Guangdong, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6326-9531","authenticated-orcid":false,"given":"Weike","family":"Pan","sequence":"additional","affiliation":[{"name":"Shenzhen University, Shenzhen, Guangdong, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9310-3460","authenticated-orcid":false,"given":"Zhong","family":"Ming","sequence":"additional","affiliation":[{"name":"Shenzhen University, Shenzhen, Guangdong, China"}]}],"member":"320","published-online":{"date-parts":[[2023,1,27]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1145\/3109859.3109912"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/TPAMI.2017.2784440"},{"key":"e_1_3_2_4_2","first-page":"474","volume-title":"Proceedings of the 12th ACM International Conference on Web Search and Data Mining","author":"Agarwal Aman","year":"2019","unstructured":"Aman Agarwal, Ivan Zaitsev, Xuanhui Wang, Cheng Li, Marc Najork, and Thorsten Joachims. 2019. 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