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<\/p>\n","protected":false},"excerpt":{"rendered":"Urban sensing is a foundation of urban computing, collecting data in cities through ubiquitous computing techniques, e.g. using humans as sensors. In this paper, we propose a crowd-based urban sensing framework that maximizes the coverage of collected data in a spatio-temporal space, based on human mobility of participants recruited by a given budget.\u00a0\u00a0\u00a0\u00a0 This framework provides participants with unobstructed tasks that do not break their original commuting plans, while ensuring a sensing program balanced coverage of data that better\u00a0supports upper-lever applications. The framework consists of three components: 1) an objective function to measure data coverage based on the entropy of data with different spatio-temporal granularities; 2) a graph-based task design algorithm to compute a near-optimal task for each participant, using a dynamic programming strategy; 3) a participant recruitment mechanism to find a portion of participants from candidates for a given budget. We evaluate our framework based on a field study and simulations, finding its advantages beyond baselines.<\/p>\n
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Urban sensing is a foundation of urban computing, collecting data in cities through ubiquitous computing techniques, e.g. using humans as sensors. In this paper, we propose a crowd-based urban sensing framework that maximizes the coverage of collected data in a spatio-temporal space, based on human mobility of participants recruited by a given budget.\u00a0\u00a0\u00a0\u00a0 This framework […]<\/p>\n","protected":false},"featured_media":0,"template":"","meta":{"msr-url-field":"","msr-podcast-episode":"","msrModifiedDate":"","msrModifiedDateEnabled":false,"ep_exclude_from_search":false,"_classifai_error":"","msr-author-ordering":null,"msr_publishername":"UbiComp 2016","msr_publisher_other":"","msr_booktitle":"","msr_chapter":"","msr_edition":"Proceedings of the 18th ACM International Conference on Ubiquitous Computing","msr_editors":"","msr_how_published":"","msr_isbn":"","msr_issue":"","msr_journal":"","msr_number":"","msr_organization":"","msr_pages_string":"","msr_page_range_start":"","msr_page_range_end":"","msr_series":"","msr_volume":"","msr_copyright":"","msr_conference_name":"Proceedings of the 18th ACM International 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