Discovering Chasing Behavior in Moving Object Trajectories

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With the increasing use of mobile devices, a lot of tracks of movement of objects are being collected. The advanced trajectory data mining research has allowed the discovery of many types of patterns from these data, like flocks, leadership, avoidance, frequent sequences, and other types of patterns. In this article we introduce a new kind of pattern: a chasing behavior between trajectories. We present the main characteristics of chasing and propose a new method that extracts this new kind of trajectory behavior pattern, considering time, distance, and speed as the main thresholds. Experimental results show that our method finds patterns that are not discovered by related approaches.

Document Type: Research Article


Affiliations: Departamento de Informatica e Estatistica, Universidade Federal de Santa Catarina

Publication date: October 1, 2011

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