44 search results - page 6 / 9 » Covariance matrix repairing in Gaussian based EDAs |
114
Voted
PAKDD
2007
ACM
15 years 5 months ago
2007
ACM
While null space based linear discriminant analysis (NLDA) obtains a good discriminant performance, the ability easily suffers from an implicit assumption of Gaussian model with sa...
134
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SIAMSC
2011
14 years 6 months ago
2011
Given a certain function f, various methods have been proposed in the past for addressing the important problem of computing the matrix-vector product f(A)b without explicitly comp...
NIPS
2003
15 years 1 months ago
2003
When clustering a dataset, the right number k of clusters to use is often not obvious, and choosing k automatically is a hard algorithmic problem. In this paper we present an impr...
CEC
2010
IEEE
14 years 10 months ago
2010
IEEE
Abstract— We present a unifying framework for continuous optimization and sampling. This framework is based on Gaussian Adaptation (GaA), a search heuristic developed in the late...
123
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PRL
2007
14 years 11 months ago
2007
Abstract – In this paper we seek a Gaussian mixture model (GMM) of the classconditional densities for plug-in Bayes classification. We propose a method for setting the number of ...