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COLOGNETWENTE
2009
13 years 11 months ago
A Simple Linear-Time Recognition Algorithm for Weakly Quasi-Threshold Graphs
: Weakly quasi-threshold graphs form a proper subclass of the well-known class of cographs by restricting the join operation. In this paper we characterize weakly quasi-threshold g...
Stavros D. Nikolopoulos, Charis Papadopoulos
CVPR
2010
IEEE
13 years 10 months ago
Delineating trees in noisy 2D images and 3D image-stacks
We present a novel approach to fully automated delineation of tree structures in noisy 2D images and 3D image stacks. Unlike earlier methods that rely mostly on local evidence, ou...
Germán González, Engin Türetken...
ICASSP
2010
IEEE
13 years 10 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
CORR
2008
Springer
80views Education» more  CORR 2008»
13 years 10 months ago
Multi-Layer Perceptrons and Symbolic Data
In some real world situations, linear models are not sufficient to represent accurately complex relations between input variables and output variables of a studied system. Multila...
Fabrice Rossi, Brieuc Conan-Guez
CORR
2008
Springer
103views Education» more  CORR 2008»
13 years 10 months ago
The Capacity Region of the Degraded Finite-State Broadcast Channel
We consider the discrete, time-varying broadcast channel with memory, under the assumption that the channel states belong to a set of nite cardinality. We begin with the de nition...
Ron Dabora, Andrea J. Goldsmith