TY - GEN
T1 - A coarse-to-fine approach for motion pattern discovery
AU - Cai, Bolun
AU - Luo, Zhifeng
AU - Li, Kerui
PY - 2012/10
Y1 - 2012/10
N2 - In this paper, we propose a coarse-to-fine approach to discovery motion patterns. There are two phases in the proposed approach. In the first phase, the proposed median-based GMM achieves coarse clustering. Moreover, the number of clusters can be heuristically found by the proposed algorithm. In the second phase, to refine coarse clustering in the first phase, a Fisher optimal division method is proposed to examine the boundary data points and to detect the change point between motion patterns. The experimental results show that the proposed approach outperforms the existing algorithms.
AB - In this paper, we propose a coarse-to-fine approach to discovery motion patterns. There are two phases in the proposed approach. In the first phase, the proposed median-based GMM achieves coarse clustering. Moreover, the number of clusters can be heuristically found by the proposed algorithm. In the second phase, to refine coarse clustering in the first phase, a Fisher optimal division method is proposed to examine the boundary data points and to detect the change point between motion patterns. The experimental results show that the proposed approach outperforms the existing algorithms.
KW - GMM
KW - motion pattern discovery
KW - trajectory data clustering
UR - http://www.scopus.com/inward/record.url?scp=84872357276&partnerID=8YFLogxK
U2 - 10.1109/CyberC.2012.95
DO - 10.1109/CyberC.2012.95
M3 - Conference article published in proceeding or book
AN - SCOPUS:84872357276
SN - 9780769548104
T3 - Proceedings of the 2012 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2012
SP - 519
EP - 522
BT - Proceedings of the 2012 International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2012
T2 - 4th International Conference on Cyber-Enabled Distributed Computing and Knowledge Discovery, CyberC 2012
Y2 - 10 October 2012 through 12 October 2012
ER -