{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T16:03:22Z","timestamp":1770998602012,"version":"3.50.1"},"reference-count":33,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2023,4,27]],"date-time":"2023-04-27T00:00:00Z","timestamp":1682553600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Natural Science Foundation of China","award":["62272077"],"award-info":[{"award-number":["62272077"]}]},{"name":"National Natural Science Foundation of China","award":["20YJAZH102"],"award-info":[{"award-number":["20YJAZH102"]}]},{"name":"National Natural Science Foundation of China","award":["cstc2021jcyj-msxmX0557"],"award-info":[{"award-number":["cstc2021jcyj-msxmX0557"]}]},{"name":"National Natural Science Foundation of China","award":["KJCX2020027"],"award-info":[{"award-number":["KJCX2020027"]}]},{"name":"National Natural Science Foundation of China","award":["KJQN202100604"],"award-info":[{"award-number":["KJQN202100604"]}]},{"name":"MOE Layout Foundation of Humanities and Social Sciences, China","award":["62272077"],"award-info":[{"award-number":["62272077"]}]},{"name":"MOE Layout Foundation of Humanities and Social Sciences, China","award":["20YJAZH102"],"award-info":[{"award-number":["20YJAZH102"]}]},{"name":"MOE Layout Foundation of Humanities and Social Sciences, China","award":["cstc2021jcyj-msxmX0557"],"award-info":[{"award-number":["cstc2021jcyj-msxmX0557"]}]},{"name":"MOE Layout Foundation of Humanities and Social Sciences, China","award":["KJCX2020027"],"award-info":[{"award-number":["KJCX2020027"]}]},{"name":"MOE Layout Foundation of Humanities and Social Sciences, China","award":["KJQN202100604"],"award-info":[{"award-number":["KJQN202100604"]}]},{"name":"Natural Science Foundation of Chongqing, China","award":["62272077"],"award-info":[{"award-number":["62272077"]}]},{"name":"Natural Science Foundation of Chongqing, China","award":["20YJAZH102"],"award-info":[{"award-number":["20YJAZH102"]}]},{"name":"Natural Science Foundation of Chongqing, China","award":["cstc2021jcyj-msxmX0557"],"award-info":[{"award-number":["cstc2021jcyj-msxmX0557"]}]},{"name":"Natural Science Foundation of Chongqing, China","award":["KJCX2020027"],"award-info":[{"award-number":["KJCX2020027"]}]},{"name":"Natural Science Foundation of Chongqing, China","award":["KJQN202100604"],"award-info":[{"award-number":["KJQN202100604"]}]},{"name":"Science and Technology Innovation Project of The Chengdu-Chongqing Twin Cities Economic Zone","award":["62272077"],"award-info":[{"award-number":["62272077"]}]},{"name":"Science and Technology Innovation Project of The Chengdu-Chongqing Twin Cities Economic Zone","award":["20YJAZH102"],"award-info":[{"award-number":["20YJAZH102"]}]},{"name":"Science and Technology Innovation Project of The Chengdu-Chongqing Twin Cities Economic Zone","award":["cstc2021jcyj-msxmX0557"],"award-info":[{"award-number":["cstc2021jcyj-msxmX0557"]}]},{"name":"Science and Technology Innovation Project of The Chengdu-Chongqing Twin Cities Economic Zone","award":["KJCX2020027"],"award-info":[{"award-number":["KJCX2020027"]}]},{"name":"Science and Technology Innovation Project of The Chengdu-Chongqing Twin Cities Economic Zone","award":["KJQN202100604"],"award-info":[{"award-number":["KJQN202100604"]}]},{"name":"Science and Technology Research Program of Chongqing Municipal Education Commission","award":["62272077"],"award-info":[{"award-number":["62272077"]}]},{"name":"Science and Technology Research Program of Chongqing Municipal Education Commission","award":["20YJAZH102"],"award-info":[{"award-number":["20YJAZH102"]}]},{"name":"Science and Technology Research Program of Chongqing Municipal Education Commission","award":["cstc2021jcyj-msxmX0557"],"award-info":[{"award-number":["cstc2021jcyj-msxmX0557"]}]},{"name":"Science and Technology Research Program of Chongqing Municipal Education Commission","award":["KJCX2020027"],"award-info":[{"award-number":["KJCX2020027"]}]},{"name":"Science and Technology Research Program of Chongqing Municipal Education Commission","award":["KJQN202100604"],"award-info":[{"award-number":["KJQN202100604"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Algorithms"],"abstract":"<jats:p>Recommender systems search the underlying preferences of users according to their historical ratings and recommend a list of items that may be of interest to them. Rating information plays an important role in revealing the true tastes of users. However, previous research indicates that natural noises may exist in the historical ratings and mislead the recommendation results. To deal with natural noises, different methods have been proposed, such as directly removing noises, correcting noise by re-predicting, or using additional information. However, these methods introduce some new problems, such as data sparsity and introducing new sources of noise. To address the problems, we present a new approach to managing natural noises in recommendation systems. Firstly, we provide the detection criteria for natural noises based on the classifications of users and items. After the noises are detected, we correct them with threshold values weighted by probabilities. Experimental results show that the proposed method can effectively correct natural noise and greatly improve the quality of recommendations.<\/jats:p>","DOI":"10.3390\/a16050228","type":"journal-article","created":{"date-parts":[[2023,4,28]],"date-time":"2023-04-28T01:33:40Z","timestamp":1682645620000},"page":"228","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["An Efficient Approach to Manage Natural Noises in Recommender Systems"],"prefix":"10.3390","volume":"16","author":[{"given":"Chenhong","family":"Luo","sequence":"first","affiliation":[{"name":"College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5247-043X","authenticated-orcid":false,"given":"Yong","family":"Wang","sequence":"additional","affiliation":[{"name":"College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"},{"name":"Key Laboratory of Data Science and Complex System Management, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"}]},{"given":"Bo","family":"Li","sequence":"additional","affiliation":[{"name":"College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"}]},{"given":"Hanyang","family":"Liu","sequence":"additional","affiliation":[{"name":"College of Computer Science and Technology, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"}]},{"given":"Pengyu","family":"Wang","sequence":"additional","affiliation":[{"name":"Key Laboratory of Data Science and Complex System Management, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9330-2662","authenticated-orcid":false,"given":"Leo Yu","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Information and Communication Technology, Griffith University, Southport, QLD 4215, Australia"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,27]]},"reference":[{"key":"ref_1","unstructured":"Eppler, M.J., and Mengis, J. 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