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ICIP
2007
IEEE
15 years 11 months ago
Abnormal Event Detection from Surveillance Video by Dynamic Hierarchical Clustering
The clustering-based approach for detecting abnormalities in surveillance video requires the appropriate definition of similarity between events. The HMM-based similarity defined ...
Fan Jiang, Ying Wu, Aggelos K. Katsaggelos
JSAC
2007
147views more  JSAC 2007»
14 years 9 months ago
Capacity limits of cognitive radio with distributed and dynamic spectral activity
Abstract— We investigate the capacity of opportunistic communication in the presence of dynamic and distributed spectral activity, i.e. when the time varying spectral holes sense...
Syed Ali Jafar, Sudhir Srinivasa
ICML
2005
IEEE
15 years 10 months ago
Clustering through ranking on manifolds
Clustering aims to find useful hidden structures in data. In this paper we present a new clustering algorithm that builds upon the consistency method (Zhou, et.al., 2003), a semi-...
Markus Breitenbach, Gregory Z. Grudic
NIPS
2003
14 years 11 months ago
Pairwise Clustering and Graphical Models
Significant progress in clustering has been achieved by algorithms that are based on pairwise affinities between the datapoints. In particular, spectral clustering methods have ...
Noam Shental, Assaf Zomet, Tomer Hertz, Yair Weiss
VTC
2006
IEEE
101views Communications» more  VTC 2006»
15 years 3 months ago
A Novel Power Allocation Strategy for Finite Alphabet in MIMO Systems
Abstract— One of the significant benefits of MultipleInput-Multiple-Output (MIMO) for wireless applications is the high spectral efficiency it can achieve. Water filling (WF)...
Jinliang Huang, Svante Signell