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040 _aEG-GiCUC
_beng
_cEG-GiCUC
041 0 _aeng
049 _aDeposite
097 _aPh.D
099 _aCai01.20.04.Ph.D.2022.Em.M
100 0 _aEman Omar Eldawy
245 1 0 _aManagement and mining of big spatiotemporal data /
_cEman Omar Eldawy ; Supervised Hoda Mokhtar Omar Mokhtar
246 1 5 _aإدارة وتنقيب البيانات المكانية الزمانية الكبيرة
260 _aCairo :
_bEman Omar Eldawy ,
_c2022
300 _a73 P. :
_bcharts ;
_c30cm
502 _aThesis (Ph.D.) - Cairo University - Faculty of Computers and Artificial Intelligence - Department of Information System
520 _aThe fast advancement that we are witnessing today in mobile computing techniques has generated massive spatiotemporal data. Mining spatiotemporal data and especially outlier detection in trajectory data is a crucial and challenging topic as it can be used in a wide range of applications, including transportation management, public safety, urban planning, and environment monitoring. An outlier (anomaly) trajectory is a trajectory that has different characteristics than normal trajectories. In our research, we present the CB-TOD algorithm to detect outlier sub-trajectories and outlier trajectories by utilizing a clustering-based methodology. In the CB-TOD algorithm, the computational time is reduced decreasing the size of the trajectories dataset and representing each trajectory with the summary set of line segments that are sufficient to define the trajectory behavior without missing the basic motion information. After that, similar line segments based on the distance are grouped into a cluster. After clustering, for each trajectory, we distinguish the cluster that has the smallest number of segments and neighbors.This cluster is marked as an outlier cluster for this trajectory and accordingly, the line segments included in this detected cluster are classified as outlier segments. Moreover, a trajectory that contains a considerable number of outlying partitions is identified as an outlier trajectory
530 _aIssued also as CD
650 0 _aSpatioTemporalitym
653 4 _aClustering-Based Trajectory Outlier Detection (CB-TOD)
653 4 _aMining of big spatiotemporal data
653 4 _aSpatiotemporal
700 0 _aHoda Mokhtar Omar Mokhtar ,
_eSupervisor
856 _uhttp://172.23.153.220/th.pdf
905 _aNazla
_eRevisor
905 _aShimaa
_eCataloger
942 _2ddc
_cTH
999 _c84303
_d84303