Preprints (www.preprints.org) | NOT PEER-REVIEWED | Posted: 4 December 2018 doi:10.20944/preprints201812.0056.v1 Peer-reviewed version available at ISPRS Int. J. Geo-Inf. 2019, 8, 74; doi:10.3390/ijgi8020074 Article Exploring Group Movement Pattern through Cellular Data: A Case Study of Tourists in Hainan Xinning Zhu 1,∗, Tianyue Sun 1 , Hao Yuan 2, Zheng Hu 2 and Jiansong Miao 1 1 Beijing University of Posts and Telecommunications,Beijing, China;
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[email protected] Abstract: Identifying group movement patterns of crowds and understanding group behaviors is valuable for urban planners, especially when the groups are special such as tourist groups. In this paper, we present a framework to discover tourist groups and investigate the tourist behaviors using mobile phone call detail records (CDRs). Unlike GPS data, CDRs are relatively poor in spatial resolution with low sampling rates, which makes it a big challenge to identify group members from thousands of tourists. Moreover, since touristic trips are not on a regular basis, no historical data of the specific group can be used to reduce the uncertainty of trajectories. To address such challenges, we propose a method called group movement pattern mining based on similarity (GMPMS) to discover tourist groups. To avoid large amounts of trajectory similarity measurements, snapshots of the trajectories are firstly generated to extract candidate groups containing co-occurring tourists.