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ICASSP
2010
IEEE
14 years 11 months ago
Clustering disjoint subspaces via sparse representation
Given a set of data points drawn from multiple low-dimensional linear subspaces of a high-dimensional space, we consider the problem of clustering these points according to the su...
Ehsan Elhamifar, René Vidal
ICASSP
2010
IEEE
14 years 11 months ago
Direct importance estimation with probabilistic principal component analyzers
The importance estimation problem (estimating the ratio of two probability density functions) has recently gathered a great deal of attention for use in various applications, e.g....
Makoto Yamada, Masashi Sugiyama, Gordon Wichern
GLOBECOM
2007
IEEE
14 years 11 months ago
Connectivity, Energy and Mobility Driven Clustering Algorithm for Mobile Ad Hoc Networks
—In the context of mobile ad hoc networks (MANETs) routing, we propose a clustering algorithm called Connectivity, Energy and Mobility driven Clustering Algorithm (CEMCA). The ai...
Fatiha Djemili Tolba, Damien Magoni, Pascal Lorenz
GLOBECOM
2008
IEEE
14 years 11 months ago
Channel Modeling of Wireless Networks in Tunnels
The propagation characteristics of electromagnetic (EM) waves in tunnels are significantly different from those in terrestrial environment. However, the current tunnel channel mode...
Zhi Sun, Ian F. Akyildiz
APIN
2010
172views more  APIN 2010»
14 years 11 months ago
Detecting interest cache poisoning in sensor networks using an artificial immune algorithm
The objective of this paper is to investigate how a Danger Theory based Artificial Immune System--in particular the Dendritic Cell Algorithm (DCA) can detect an attack on a sensor ...
Christian Wallenta, Jungwon Kim, Peter J. Bentley,...