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However, as spatiotemporal dataset contains sensitive information, directly outsourcing spatiotemporal data to Cloud servers will raise privacy concerns. To address the problem of privacy, we have proposed a privacy preserving clustering algorithm based on MapReduce for spatiotemporal data that can be efficiently outsourced for data processing on the Cloud servers. The proposed scheme allows the clustering operation to be performed directly on the encrypted spatiotemporal data by Cloud server. Extensive experimental evaluation with trajectory data shows that our scheme efficiently produces higher quality clustering results. <\/jats:p>","DOI":"10.1142\/s0219622022500110","type":"journal-article","created":{"date-parts":[[2022,3,24]],"date-time":"2022-03-24T01:54:52Z","timestamp":1648086892000},"page":"967-992","source":"Crossref","is-referenced-by-count":0,"title":["Efficient and Privacy Preserving Clustering Algorithm for Spatiotemporal Data"],"prefix":"10.1142","volume":"23","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1468-7259","authenticated-orcid":false,"given":"Abid","family":"Mehmood","sequence":"first","affiliation":[{"name":"College of Engineering, Abu Dhabi University, Abu Dhabi, United Arab Emirates"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Iynkaran","family":"Natgunanathan","sequence":"additional","affiliation":[{"name":"School of Information Technology, Deakin University,  Burwood, VIC, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yong","family":"Xiang","sequence":"additional","affiliation":[{"name":"School of Information Technology, Deakin University,  Burwood, VIC, Australia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"219","published-online":{"date-parts":[[2022,3,23]]},"reference":[{"key":"S0219622022500110BIB001","doi-asserted-by":"publisher","DOI":"10.1007\/978-1-4614-1629-6_8"},{"key":"S0219622022500110BIB002","doi-asserted-by":"publisher","DOI":"10.1109\/CC.2014.6821743"},{"key":"S0219622022500110BIB003","first-page":"5994","volume":"67","author":"He Y.","year":"2018","journal-title":"IEEE Transactions on Vehicular Technology"},{"key":"S0219622022500110BIB004","doi-asserted-by":"publisher","DOI":"10.1109\/TKDE.2017.2760880"},{"key":"S0219622022500110BIB005","doi-asserted-by":"publisher","DOI":"10.1007\/s10994-015-5520-1"},{"key":"S0219622022500110BIB006","doi-asserted-by":"publisher","DOI":"10.1109\/MCC.2015.36"},{"key":"S0219622022500110BIB007","doi-asserted-by":"publisher","DOI":"10.1109\/MCC.2014.22"},{"key":"S0219622022500110BIB008","doi-asserted-by":"publisher","DOI":"10.1145\/2393216.2393290"},{"key":"S0219622022500110BIB009","doi-asserted-by":"publisher","DOI":"10.1109\/ACCESS.2020.3019631"},{"key":"S0219622022500110BIB010","doi-asserted-by":"publisher","DOI":"10.1109\/TITS.2016.2547641"},{"key":"S0219622022500110BIB011","doi-asserted-by":"publisher","DOI":"10.1109\/TKDE.2017.2652454"},{"key":"S0219622022500110BIB012","doi-asserted-by":"publisher","DOI":"10.1109\/NTCCIT.2018.8681186"},{"key":"S0219622022500110BIB013","doi-asserted-by":"publisher","DOI":"10.1016\/j.jss.2013.01.071"},{"issue":"16","key":"S0219622022500110BIB014","first-page":"359","volume-title":"Proc. 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