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Sen. Netw."],"published-print":{"date-parts":[[2024,3,31]]},"abstract":"<jats:p>Federated learning (FL) has been proposed as a privacy-preserving distributed learning paradigm, which differs from traditional distributed learning in two main aspects: the systems heterogeneity, meaning that clients participating in training have significant differences in systems performance including CPU frequency, dataset size, and transmission power, and the statistical heterogeneity, indicating that the data distribution among clients exhibits Non-Independent Identical Distribution. Therefore, the random selection of clients will significantly reduce the training efficiency of FL. In this article, we propose a client selection mechanism considering both systems and statistical heterogeneity, which aims to improve the time-to-accuracy performance by trading off the impact of systems performance differences and data distribution differences among the clients on training efficiency. First, client selection is formulated as a combinatorial optimization problem that jointly optimizes systems and statistical performance. Then, we generalize it to a submodular maximization problem with knapsack constraint, and propose the Iterative Greedy with Partial Enumeration (IGPE) algorithm to greedily select the suitable clients. Then, the approximation ratio of IGPE is analyzed theoretically. Extensive experiments verify that the time-to-accuracy performance of the IGPE algorithm outperforms other compared algorithms in a variety of heterogeneous environments.<\/jats:p>","DOI":"10.1145\/3638052","type":"journal-article","created":{"date-parts":[[2023,12,22]],"date-time":"2023-12-22T11:30:45Z","timestamp":1703244645000},"page":"1-32","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":17,"title":["Addressing Heterogeneity in Federated Learning with Client Selection via Submodular Optimization"],"prefix":"10.1145","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9067-7896","authenticated-orcid":false,"given":"Jinghui","family":"Zhang","sequence":"first","affiliation":[{"name":"Southeast University, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5868-9531","authenticated-orcid":false,"given":"Jiawei","family":"Wang","sequence":"additional","affiliation":[{"name":"Southeast University, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-7852-6294","authenticated-orcid":false,"given":"Yaning","family":"Li","sequence":"additional","affiliation":[{"name":"Southeast University, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-1089-2392","authenticated-orcid":false,"given":"Fa","family":"Xin","sequence":"additional","affiliation":[{"name":"Southeast University, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6770-326X","authenticated-orcid":false,"given":"Fang","family":"Dong","sequence":"additional","affiliation":[{"name":"Southeast University, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7518-4367","authenticated-orcid":false,"given":"Junzhou","family":"Luo","sequence":"additional","affiliation":[{"name":"Southeast University, China"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-6763-2682","authenticated-orcid":false,"given":"Zhihua","family":"Wu","sequence":"additional","affiliation":[{"name":"Baidu Inc., China"}]}],"member":"320","published-online":{"date-parts":[[2024,2,16]]},"reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.3390\/s22020450"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1109\/TWC.2021.3052681"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1109\/LWC.2019.2917133"},{"key":"e_1_3_2_5_2","unstructured":"Jinheon Baek Wonyong Jeong Jiongdao Jin Jaehong Yoon and Sung Ju Hwang. 2022. 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