155 search results - page 24 / 31 » On global and local convergence of half-quadratic algorithms |
INFOCOM
2005
IEEE
14 years 1 months ago
2005
IEEE
Abstract— We present a model for the joint design of congestion control and media access control (MAC) for ad hoc wireless networks. Using contention graph and contention matrix,...
CEC
2009
IEEE
14 years 2 months ago
2009
IEEE
— Traditional particle swarm optimization (PSO) suffers from the premature convergence problem, which usually results in PSO being trapped in local optima. This paper presents an...
ICASSP
2009
IEEE
13 years 11 months ago
2009
IEEE
In this paper we are interested in non-negative matrix factorization (NMF) with the Itakura-Saito (IS) divergence. Previous work has demonstrated the relevance of this cost functi...
GISCIENCE
2008
Springer
13 years 8 months ago
2008
Springer
Movement patterns, like flocking and converging, leading and following, are examples of high-level process knowledge derived from lowlevel trajectory data. Conventional techniques...
ICASSP
2010
IEEE
13 years 7 months ago
2010
IEEE
The least-absolute shrinkage and selection operator (Lasso) is a popular tool for joint estimation and continuous variable selection, especially well-suited for the under-determin...