2010 MiningPeriodicBehaviorsforMovin

• (Li, Ding et al., 2010) ⇒ Zhenhui Li, Bolin Ding, Jiawei Han, Roland Kays, and Peter Nye. (2010). “Mining Periodic Behaviors for Moving Objects.” In: Proceedings of the 16th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining (KDD-2010). doi:10.1145/1835804.1835942

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• http://scholar.google.com/scholar?q=%22Mining+periodic+behaviors+for+moving+objects%22+2010
• http://portal.acm.org/citation.cfm?id=1835942&preflayout=flat#citedby

Quotes

Abstract

Periodicity is a frequently happening phenomenon for moving objects. Finding periodic behaviors is essential to understanding object movements. However, periodic behaviors could be complicated, involving multiple interleaving periods, partial time span, and spatiotemporal noises and outliers.

In this paper, we address the problem of mining periodic behaviors for moving objects. It involves two sub-problems: how to detect the periods in complex movement, and how to mine periodic movement behaviors. Our main assumption is that the observed movement is generated from multiple interleaved periodic behaviors associated with certain reference locations. Based on this assumption, we propose a two-stage algorithm, Periodica, to solve the problem. At the first stage, the notion of observation spot is proposed to capture the reference locations. Through observation spots, multiple periods in the movement can be retrieved using a method that combines Fourier transform and autocorrelation. At the second stage, a probabilistic model is proposed to characterize the periodic behaviors. For a specific period, periodic behaviors are statistically generalized from partial movement sequences through hierarchical clustering. Empirical studies on both synthetic and real data sets demonstrate the effectiveness of our method.

References

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	Author	volume	Date Value	title	type	journal	titleUrl	doi	note	year
2010 MiningPeriodicBehaviorsforMovin	Zhenhui Li Bolin Ding Roland Kays Peter Nye Jiawei Han			Mining Periodic Behaviors for Moving Objects		KDD-2010 Proceedings		10.1145/1835804.1835942		2010