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Title: Analyzing abnormal events from spatio-temporal trajectories
Authors: Patel, D. 
Bhatt, C.
Hsu, W. 
Lee, M.L. 
Kankanhalli, M. 
Keywords: Abnormal events
Representation scheme
Trajectory classification
Issue Date: 2009
Citation: Patel, D., Bhatt, C., Hsu, W., Lee, M.L., Kankanhalli, M. (2009). Analyzing abnormal events from spatio-temporal trajectories. ICDM Workshops 2009 - IEEE International Conference on Data Mining : 616-621. ScholarBank@NUS Repository.
Abstract: Advances in RFID based sensor technologies has been used in applications which requires the tracking of assets, products and individuals. The recording of such movements is captured in a trajectory database and can be analyzed for the monitoring of abnormal events. In this paper, we describe a system called InViTA for analyzing abnormal events from spatio-temporal trajectories captured during an office evacuation after an explosion. InViTA utilizes a trajectory representation scheme and extract the features to derive a set of rules that label each person's trajectory as belonging to a suspect, witness, or victim, etc. We run the system on the office evacuation data provided in VAST 2008 challenge and obtain comparable results with that obtained from visualization and human analysis. The system includes a user-friendly graphical interface for parameter tuning and intuitive result analysis. © 2009 IEEE.
Source Title: ICDM Workshops 2009 - IEEE International Conference on Data Mining
ISBN: 9780769539027
DOI: 10.1109/ICDMW.2009.45
Appears in Collections:Staff Publications

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