{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,6,19]],"date-time":"2025-06-19T04:35:05Z","timestamp":1750307705853,"version":"3.41.0"},"reference-count":18,"publisher":"Association for Computing Machinery (ACM)","issue":"1","license":[{"start":{"date-parts":[[2009,3,1]],"date-time":"2009-03-01T00:00:00Z","timestamp":1235865600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/www.acm.org\/publications\/policies\/copyright_policy#Background"}],"funder":[{"DOI":"10.13039\/100000145","name":"Division of Information and Intelligent Systems","doi-asserted-by":"publisher","award":["IIS-0811954"],"award-info":[{"award-number":["IIS-0811954"]}],"id":[{"id":"10.13039\/100000145","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["dl.acm.org"],"crossmark-restriction":true},"short-container-title":["SIGSPATIAL Special"],"published-print":{"date-parts":[[2009,3]]},"abstract":"<jats:p>Location-detection devices are used ubiquitously in moving objects due to the everyday decreasing cost and simplified technology. Usually, these devices will send the moving objects' location information to a spatio-temporal data stream management system that will be then responsible for answering spatio-temporal queries related to these moving objects. Most of the existing work focused on the continuous spatio-temporal query execution. However, several outstanding challenges have been either addressed partially or not at all in the existing literature. In this paper, we focus on the optimization of multi-predicate spatio-temporal queries on moving objects. In particular, we provide a costing mechanism for continuous spatio-temporal queries. We provide for the optimization of the parameters of the spatio-temporal operators. Finally, we propose the adaptive execution of the continuous queries for spatio-temporal data stream management systems.<\/jats:p>","DOI":"10.1145\/1517463.1517465","type":"journal-article","created":{"date-parts":[[2009,11,30]],"date-time":"2009-11-30T14:56:36Z","timestamp":1259592996000},"page":"21-26","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":1,"title":["Query optimization for spatio-temporal data stream management systems"],"prefix":"10.1145","volume":"1","author":[{"given":"Hicham G.","family":"Elmongui","sequence":"first","affiliation":[{"name":"Purdue University, West Lafayette, IN"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"320","published-online":{"date-parts":[[2009,3]]},"reference":[{"key":"e_1_2_1_1_1","unstructured":"FCC\n\n  \n  : Enhanced 911 - Wireless Services. http:\/\/www.fcc.gov\/911\/enhanced\/.  FCC: Enhanced 911 - Wireless Services. http:\/\/www.fcc.gov\/911\/enhanced\/."},{"volume-title":"IDEAS","year":"2002","author":"Benetis R.","key":"e_1_2_1_2_1"},{"key":"e_1_2_1_3_1","doi-asserted-by":"publisher","DOI":"10.1145\/357775.357776"},{"key":"e_1_2_1_4_1","doi-asserted-by":"publisher","DOI":"10.1007\/11535331_2"},{"key":"e_1_2_1_5_1","doi-asserted-by":"publisher","DOI":"10.5555\/646518.756858"},{"key":"e_1_2_1_6_1","doi-asserted-by":"publisher","DOI":"10.1145\/1097064.1097092"},{"key":"e_1_2_1_7_1","doi-asserted-by":"publisher","DOI":"10.1145\/1071246.1071270"},{"key":"e_1_2_1_8_1","unstructured":"M. F. Mokbel and W. G. Aref. PLACE: A Scalable Location-aware Database Server for Spatio-temporal Data Streams. Data Engineering Bulletin 28(3) 2005.  M. F. Mokbel and W. G. Aref. PLACE: A Scalable Location-aware Database Server for Spatio-temporal Data Streams. 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