{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,7]],"date-time":"2025-11-07T09:31:55Z","timestamp":1762507915193,"version":"build-2065373602"},"reference-count":35,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2019,10,27]],"date-time":"2019-10-27T00:00:00Z","timestamp":1572134400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61901078","61771082","61871062"],"award-info":[{"award-number":["61901078","61771082","61871062"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100013084","name":"Program for Innovation Team Building at Institutions of Higher Education in Chongqing","doi-asserted-by":"publisher","award":["CXTDX201601020"],"award-info":[{"award-number":["CXTDX201601020"]}],"id":[{"id":"10.13039\/501100013084","id-type":"DOI","asserted-by":"publisher"}]},{"name":"The Science and Technology Research Program of Chongqing Municipal Education Commission","award":["KJQN201900609"],"award-info":[{"award-number":["KJQN201900609"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Mobile crowd sensing (MCS) systems usually attract numerous participants with widely varying sensing costs and interest preferences to perform tasks, where accurate task assignment plays an indispensable role and also faces many challenges (e.g., how to simplify the complicated task assignment process and improve matching accuracy between tasks and participants, while guaranteeing submitted data credibility). To overcome these challenges, we propose a service benefit aware multi-task assignment (SBAMA) strategy in this paper. Firstly, service benefits of participants are modeled based on their task difficulty, task history, sensing capacity, and sensing positivity to meet differentiated requirements of various task types. Subsequently, users are then clustered by enhanced fuzzy clustering method. Finally, a gradient descent algorithm is designed to match task types to participants achieving the maximum service benefit. Simulation results verify that the proposed task assignment strategy not only effectively reduces matching complexity but also improves task completion rate.<\/jats:p>","DOI":"10.3390\/s19214666","type":"journal-article","created":{"date-parts":[[2019,10,28]],"date-time":"2019-10-28T04:44:31Z","timestamp":1572237871000},"page":"4666","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["Service Benefit Aware Multi-Task Assignment Strategy for Mobile Crowd Sensing"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5810-541X","authenticated-orcid":false,"given":"Zhidu","family":"Li","sequence":"first","affiliation":[{"name":"School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"},{"name":"Key Laboratory of Optical Communication and Networks, Chongqing 400065, China"},{"name":"Key Laboratory of Ubiquitous Sensing and Networking, Chongqing 400065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hailiang","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"},{"name":"Key Laboratory of Optical Communication and Networks, Chongqing 400065, China"},{"name":"Key Laboratory of Ubiquitous Sensing and Networking, Chongqing 400065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruyan","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China"},{"name":"Key Laboratory of Optical Communication and Networks, Chongqing 400065, China"},{"name":"Key Laboratory of Ubiquitous Sensing and Networking, Chongqing 400065, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2019,10,27]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1145\/2818183","article-title":"Mobile crowd sensing and computing: The review of an emerging human-powered sensing paradigm","volume":"48","author":"Guo","year":"2015","journal-title":"ACM Comput. 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