{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,6]],"date-time":"2026-02-06T00:42:26Z","timestamp":1770338546281,"version":"3.49.0"},"reference-count":44,"publisher":"Association for Computing Machinery (ACM)","issue":"3","license":[{"start":{"date-parts":[[2025,3,22]],"date-time":"2025-03-22T00:00:00Z","timestamp":1742601600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"funder":[{"name":"Shanghai Key Laboratory of Scalable Computing and Systems"},{"name":"Wuxi IoT Innovation Promotion Center","award":["2022SP-T13-C"],"award-info":[{"award-number":["2022SP-T13-C"]}]},{"name":"Industry-University-Research Cooperation Funding Project from the Eighth Research Institute in China Aerospace Science and Technology Corporation","award":["USCAST2022-17"],"award-info":[{"award-number":["USCAST2022-17"]}]}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":["ACM Trans. Recomm. Syst."],"published-print":{"date-parts":[[2025,9,30]]},"abstract":"<jats:p>\n            With the development of 5G communication and smart devices, the prosperity of online content has boosted Recommender System (RS) research. Due to the data scarcity problem, researchers employ knowledge transfer techniques to improve the accuracy of RS. Data sharing or data augmentation are promising methods for such a problem, but the data suffers from privacy leakage during sharing. Thus, federated learning has been adopted to collaboratively train recommender models while preserving data privacy. Federated Recommender System (FRS) combines federated learning and RS to provide distributed recommendation services to the users. However, the existing FRS suffers from massive communication and system heterogeneity, where the necessity of model transmission and the diversity of the clients bring significant communication overhead to the system. In this article, we propose Efficient Federated Recommender System with Adaptive Model Pruning and Momentum-based Batch Adjustment (\n            <jats:inline-formula content-type=\"math\/tex\">\n              <jats:tex-math notation=\"LaTeX\" version=\"MathJax\">\\(eFRSA^{2}\\)<\/jats:tex-math>\n            <\/jats:inline-formula>\n            ) to reduce the communication overhead of FRS.\n            <jats:inline-formula content-type=\"math\/tex\">\n              <jats:tex-math notation=\"LaTeX\" version=\"MathJax\">\\(eFRSA^{2}\\)<\/jats:tex-math>\n            <\/jats:inline-formula>\n            contains two modules. Adaptive Model Pruning utilizes magnitude pruning to reduce the communication volume and adaptively modifies the compression ratios of different clients to maintain the model accuracy. Momentum-based Batch Adjustment adjusts the local training batch number by a similar method of gradient descent with momentum to align the local computation time of the clients and reduce the communication overhead. The experimental results demonstrate that\n            <jats:inline-formula content-type=\"math\/tex\">\n              <jats:tex-math notation=\"LaTeX\" version=\"MathJax\">\\(eFRSA^{2}\\)<\/jats:tex-math>\n            <\/jats:inline-formula>\n            can reduce up to 90% communication volume and mitigate the system heterogeneity by over 75%, demonstrating the priority of\n            <jats:inline-formula content-type=\"math\/tex\">\n              <jats:tex-math notation=\"LaTeX\" version=\"MathJax\">\\(eFRSA^{2}\\)<\/jats:tex-math>\n            <\/jats:inline-formula>\n            in training efficiency. Source code can be found at\n            <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"url\" xlink:href=\"https:\/\/github.com\/shhjwu5\/eFRSA2\">https:\/\/github.com\/shhjwu5\/eFRSA2<\/jats:ext-link>\n            .\n          <\/jats:p>","DOI":"10.1145\/3704267","type":"journal-article","created":{"date-parts":[[2024,11,13]],"date-time":"2024-11-13T11:20:48Z","timestamp":1731496848000},"page":"1-23","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":5,"title":["Efficient Federated Recommender System with Adaptive Model Pruning and Momentum-based Batch Adjustment"],"prefix":"10.1145","volume":"3","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0743-7806","authenticated-orcid":false,"given":"Hongjian","family":"Shi","sequence":"first","affiliation":[{"name":"School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3802-2080","authenticated-orcid":false,"given":"Yicheng","family":"Di","sequence":"additional","affiliation":[{"name":"School of Artificial Intelligence and Computer Science, Jiangnan University, Wuxi, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-3017-3348","authenticated-orcid":false,"given":"Xinyu","family":"Ruan","sequence":"additional","affiliation":[{"name":"School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0003-4164-0469","authenticated-orcid":false,"given":"Mingrui","family":"Liao","sequence":"additional","affiliation":[{"name":"Aerospace System Engineering Shanghai, Shanghai China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-7061-7450","authenticated-orcid":false,"given":"Qian","family":"Zhang","sequence":"additional","affiliation":[{"name":"Aerospace System Engineering Shanghai, Shanghai China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9592-8490","authenticated-orcid":false,"given":"Ruhui","family":"Ma","sequence":"additional","affiliation":[{"name":"School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4714-7400","authenticated-orcid":false,"given":"Haibing","family":"Guan","sequence":"additional","affiliation":[{"name":"School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai China"}]}],"member":"320","published-online":{"date-parts":[[2025,3,22]]},"reference":[{"key":"e_1_3_2_2_2","volume-title":"Proceedings of the 9th International Conference on Learning Representations","author":"Acar Durmus Alp Emre","year":"2021","unstructured":"Durmus Alp Emre Acar, Yue Zhao, Ramon Matas Navarro, Matthew Mattina, Paul N. 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