{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,2]],"date-time":"2026-05-02T06:58:29Z","timestamp":1777705109633,"version":"3.51.4"},"reference-count":20,"publisher":"SAGE Publications","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IFS"],"published-print":{"date-parts":[[2023,1,5]]},"abstract":"<jats:p>Adding noise to user history data helps to protect user privacy in recommendation systems but affects the recommendation performance. To solve this problem, a matrix factorization tourism point of interest recommendation model based on interest offset and differential privacy is proposed in this paper. The recommendation performance of the model is improved by analyzing user interest preferences. Specifically, user interest offsets are extracted from user tags and user ratings under time-series factors to calculate user interest drift. Then, similar neighbors are found to train user feature preferences which are integrated into the matrix model in the form of regular terms. Meanwhile, based on the differential privacy theory, a privacy neighbor selection algorithm combining the K-Medoides clustering algorithm and index mechanism is designed to effectively protect the identity of neighbors and prevent KNN attacks. Besides, the Laplace mechanism is used to implement differential privacy protection for the model\u2019s gradient descent process. Finally, the feasibility of the proposed recommendation model is verified through experiments, and the experimental results indicate that this model has advantages in recommendation accuracy and privacy protection.<\/jats:p>","DOI":"10.3233\/jifs-211542","type":"journal-article","created":{"date-parts":[[2022,9,30]],"date-time":"2022-09-30T12:11:29Z","timestamp":1664539889000},"page":"713-727","source":"Crossref","is-referenced-by-count":3,"title":["A matrix factorization recommendation model for tourism points of interest based on interest shift and differential privacy"],"prefix":"10.1177","volume":"44","author":[{"given":"Zhiyun","family":"Xu","sequence":"first","affiliation":[{"name":"School of Geography and Tourism, Anhui Normal University, Wuhu, Anhui, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zhaoyan","family":"Hu","sequence":"additional","affiliation":[{"name":"School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China"},{"name":"Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoyao","family":"Zheng","sequence":"additional","affiliation":[{"name":"School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China"},{"name":"Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Haiyan","family":"Zhang","sequence":"additional","affiliation":[{"name":"School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China"},{"name":"Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yonglong","family":"Luo","sequence":"additional","affiliation":[{"name":"School of Geography and Tourism, Anhui Normal University, Wuhu, Anhui, China"},{"name":"School of Computer and Information, Anhui Normal University, Wuhu, Anhui, China"},{"name":"Anhui Provincial Key Laboratory of Network and Information Security, Wuhu, Anhui, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","reference":[{"issue":"16","key":"10.3233\/JIFS-211542_ref1","doi-asserted-by":"crossref","first-page":"7370","DOI":"10.1016\/j.eswa.2014.06.007","article-title":"Intelligent tourism recommender systems: A survey","volume":"41","author":"Borras","year":"2014","journal-title":"Expert Systems with Applications"},{"issue":"6","key":"10.3233\/JIFS-211542_ref2","doi-asserted-by":"crossref","first-page":"54","DOI":"10.1109\/4236.968832","article-title":"Privacy risks in recommender systems","volume":"5","author":"Ramakrishnan","year":"2001","journal-title":"IEEE Internet Computing"},{"issue":"6","key":"10.3233\/JIFS-211542_ref3","doi-asserted-by":"crossref","first-page":"914","DOI":"10.1109\/TSC.2015.2485988","article-title":"Efficient role mining for context-aware service recommendation using a highperformance cluster","volume":"10","author":"Yu","year":"2017","journal-title":"IEEE Transactions on Services Computing"},{"key":"10.3233\/JIFS-211542_ref5","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1016\/j.eswa.2016.11.018","article-title":"Privacy-preserving collaborative recommendations based on random perturbations","volume":"71","author":"Polatidis","year":"2017","journal-title":"Expert Systems with Applications"},{"key":"10.3233\/JIFS-211542_ref6","doi-asserted-by":"crossref","first-page":"393","DOI":"10.1109\/ACCESS.2017.2765317","article-title":"A privacy-preserving framework for trust-oriented point-ofinterest recommendation","volume":"6","author":"Liu","year":"2018","journal-title":"IEEE Access"},{"issue":"3","key":"10.3233\/JIFS-211542_ref7","doi-asserted-by":"crossref","first-page":"1053","DOI":"10.1109\/TIFS.2012.2190726","article-title":"Generating private recommendations efficiently using homomorphic encryption and data packing","volume":"7","author":"Erkin","year":"2012","journal-title":"IEEE Transactions on Information Forensics and Security"},{"issue":"1","key":"10.3233\/JIFS-211542_ref8","first-page":"99","article-title":"Research on location-based distributed differential privacy recommendation method","volume":"49","author":"Zheng","year":"2021","journal-title":"ACTA ELECTONICA SINICA"},{"key":"10.3233\/JIFS-211542_ref9","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1145\/2072609.2072624","article-title":"Near2me: An authentic and personalized social media-based recommender for travel destinations, in","author":"Kofler","year":"2011","journal-title":"Proceedings of the 3rd ACM SIGMM international workshop on Social media"},{"issue":"1","key":"10.3233\/JIFS-211542_ref10","doi-asserted-by":"crossref","first-page":"633","DOI":"10.1016\/j.engappai.2012.02.014","article-title":"Sigture-destination: Ontology-based personalized recommendation of tourism and leisure activitie","volume":"26","author":"Antonio","year":"2013","journal-title":"Engineering Applications of Artificial Intelligence"},{"key":"10.3233\/JIFS-211542_ref11","doi-asserted-by":"crossref","first-page":"157","DOI":"10.3727\/1098305031436980","article-title":"A tourism recommender system based on collaboration and text analysis","volume":"6","author":"Loh","year":"2003","journal-title":"Information Technology and Tourism"},{"key":"10.3233\/JIFS-211542_ref13","doi-asserted-by":"crossref","unstructured":"Andersen A. , Karlsen R. Privacy Preserving Personalization in Complex Ecosystems, pp. 247\u2013261 Berlin, Heidelberg: Springer Berlin Heidelberg, 2018.","DOI":"10.1007\/978-3-662-49275-8_26"},{"key":"10.3233\/JIFS-211542_ref15","doi-asserted-by":"crossref","unstructured":"Dwork C. , Kenthapadi K. , McSherry F. , Mironov I. , Naor M. Our data, ourselves: Privacy via distributed noise generation, in Proceedings of the 24th Annual International Conference on The Theory and Applications of Cryptographic Techniques, (Berlin, Heidelberg), pp. 486\u2013503, Springer-Verlag, 2006.","DOI":"10.1007\/11761679_29"},{"key":"10.3233\/JIFS-211542_ref16","doi-asserted-by":"crossref","unstructured":"Dwork C. Differential privacy: A survey of results, 702 in Proceedings of the 5th International Conference on Theory and Applications of Models of Computation, TAMC\u201908, (Berlin, Heidelberg), pp. 1\u201319, Springer-Verlag, 2008.","DOI":"10.1007\/978-3-540-79228-4_1"},{"issue":"8","key":"10.3233\/JIFS-211542_ref17","first-page":"265","article-title":"Calibrating noise to sensitivity in private data analysis","volume":"3876","author":"Dwork","year":"2012","journal-title":"Lecture Notes in Computer Science"},{"issue":"01","key":"10.3233\/JIFS-211542_ref21","first-page":"43","article-title":"Collaborative filtering algorithm based on differential privacy and svd++","volume":"34","author":"Zhengzheng","year":"2019","journal-title":"Control and Decision"},{"key":"10.3233\/JIFS-211542_ref23","doi-asserted-by":"crossref","first-page":"100","DOI":"10.1016\/j.eswa.2015.11.023","article-title":"Nikolaos, A multi-level collaborative filtering method that improves recommendations","volume":"48","author":"Polatidis","year":"2016","journal-title":"Expert Systems with Applications"},{"issue":"4","key":"10.3233\/JIFS-211542_ref25","doi-asserted-by":"crossref","first-page":"717","DOI":"10.1016\/j.jcss.2014.11.016","article-title":"Svd-based incremental approaches for recommender systems","volume":"81","author":"Xun","year":"2015","journal-title":"Journal of Computer & System Sciences"},{"issue":"2","key":"10.3233\/JIFS-211542_ref26","doi-asserted-by":"crossref","first-page":"1273","DOI":"10.1109\/TII.2014.2308433","article-title":"An efficient non-negative matrix-factorization-based approach to collaborative filtering for recommender systems","volume":"10","author":"Xin","year":"2014","journal-title":"IEEE Transactions on Industrial Informatics"},{"issue":"3-4","key":"10.3233\/JIFS-211542_ref28","doi-asserted-by":"crossref","first-page":"211","DOI":"10.1561\/0400000042","article-title":"The algorithmic foundations of differential privacy","volume":"9","author":"Dwork","year":"2013","journal-title":"Foundations and Trends in Theoretical Computer Science"},{"issue":"4","key":"10.3233\/JIFS-211542_ref29","first-page":"1","article-title":"Differential privacy: From theory to practice, Synthesis Lectures on Information Security","volume":"8","author":"Li","year":"2016","journal-title":"Privacy, & Trust"}],"container-title":["Journal of Intelligent &amp; Fuzzy Systems"],"original-title":[],"link":[{"URL":"https:\/\/content.iospress.com\/download?id=10.3233\/JIFS-211542","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T09:42:55Z","timestamp":1777455775000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/full\/10.3233\/JIFS-211542"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2023,1,5]]},"references-count":20,"journal-issue":{"issue":"1"},"URL":"https:\/\/doi.org\/10.3233\/jifs-211542","relation":{},"ISSN":["1064-1246","1875-8967"],"issn-type":[{"value":"1064-1246","type":"print"},{"value":"1875-8967","type":"electronic"}],"subject":[],"published":{"date-parts":[[2023,1,5]]}}}