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To address the aforementioned problems, Secure and Efficient Session-based Multimedia Recommendation (SeSMR) model is proposed. In the proposed SeSMR model, based on BGV homomorphic encryption, a ciphertext training submodel is proposed to address the privacy leakage, ensuring the security in SBR. Furthermore, based on the reinforcement of feature activation, a residual attention mechanism is proposed to mitigate over-smoothing while maintaining the independence of multiple features. Finally, based on location coding, a soft attention mechanism is proposed to improve the recommendation accuracy, by introducing the position difference information between items into intra-session and inter-session scenarios. Experiments demonstrate that both Recall and MRR metrics exhibit nearly 2% to 5% improvement.<\/jats:p>","DOI":"10.1145\/3687473","type":"journal-article","created":{"date-parts":[[2024,8,28]],"date-time":"2024-08-28T12:28:13Z","timestamp":1724848093000},"page":"1-21","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["SeSMR: Secure and Efficient Session-Based Multimedia Recommendation in Edge Computing"],"prefix":"10.1145","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5730-3315","authenticated-orcid":false,"given":"Fengyin","family":"Li","sequence":"first","affiliation":[{"name":"School of Computer Science, Qufu Normal University, Rizhao, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-2421-8723","authenticated-orcid":false,"given":"Hongzhe","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Computer Science, Qufu Normal University, Rizhao, China and School of Computer Science and Technology, Soochow University, Suzhou, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6147-0637","authenticated-orcid":false,"given":"Guangshun","family":"Li","sequence":"additional","affiliation":[{"name":"School of Computer Science, Qufu Normal University, Rizhao, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1524-2064","authenticated-orcid":false,"given":"Yilei","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Computer Science, Qufu Normal University, Rizhao, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1634-9840","authenticated-orcid":false,"given":"Huiyu","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Computing and Mathematical Sciences, University of Leicester, Leicester, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-4056-433X","authenticated-orcid":false,"given":"Shanshan","family":"Cao","sequence":"additional","affiliation":[{"name":"North China Sea Development Research Institute, Ministry of Natural Resources, Qingdao, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2947-769X","authenticated-orcid":false,"given":"Tao","family":"Li","sequence":"additional","affiliation":[{"name":"School of Computer Science, Qufu Normal University, Rizhao, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2025,8,13]]},"reference":[{"key":"e_1_3_1_2_2","doi-asserted-by":"publisher","DOI":"10.1145\/3132847.3132926"},{"key":"e_1_3_1_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/ICDMW51313.2020.00041"},{"key":"e_1_3_1_4_2","doi-asserted-by":"publisher","unstructured":"A. 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