PASCAL - Pattern Analysis, Statistical Modelling and Computational Learning

RCGA-S/RCGA-SP Methods to Minimize the Delta Test for Regression Tasks
Fernando Mateo, Dusan Sovilj, Rafael Gadea and Amaury Lendasse
In: Bio-Inspired Systems: Computational and Ambient Intelligence Lecture Notes in Computer Science , 5517/2009 . (2009) Springer Berlin / Heidelberg , pp. 359-366. ISBN 978-3-642-02477-1


Frequently, the number of input variables (features) involved in a problem becomes too large to be easily handled by conventional machine-learning models. This paper introduces a combined strategy that uses a real-coded genetic algorithm to find the optimal scaling (RCGA-S) or scaling + projection (RCGA-SP) factors that minimize the Delta Test criterion for variable selection when being applied to the input variables. These two methods are evaluated on five different regression datasets and their results are compared. The results confirm the goodness of both methods although RCGA-SP performs clearly better than RCGA-S because it adds the possibility of projecting the input variables onto a lower dimensional space.

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EPrint Type:Book Section
Project Keyword:Project Keyword UNSPECIFIED
Subjects:Computational, Information-Theoretic Learning with Statistics
Learning/Statistics & Optimisation
Theory & Algorithms
ID Code:6657
Deposited By:Amaury Lendasse
Deposited On:08 March 2010