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Using a mahalanobis-like distance to train radial basis neural networks

Published: 08 June 2005 Publication History

Abstract

Radial Basis Neural Networks (RBNN) can approximate any regular function and have a faster training phase than other similar neural networks. However, the activation of each neuron depends on the euclidean distance between a pattern and the neuron center. Therefore, the activation function is symmetrical and all attributes are considered equally relevant. This could be solved by altering the metric used in the activation function (i.e. using non-symmetrical metrics). The Mahalanobis distance is such a metric, that takes into account the variability of the attributes and their correlations. However, this distance is computed directly from the variance-covariance matrix and does not consider the accuracy of the learning algorithm. In this paper, we propose to use a generalized euclidean metric, following the Mahalanobis structure, but evolved by a Genetic Algorithm (GA). This GA searches for the distance matrix that minimizes the error produced by a fixed RBNN. Our approach has been tested on two domains and positive results have been observed in both cases.

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Cited By

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  • (2018)Comprehensive survey on haze removal techniquesMultimedia Tools and Applications10.1007/s11042-017-5321-677:8(9595-9620)Online publication date: 1-Apr-2018
  • (2012)Analysis and evaluation in a welding process applying a Redesigned Radial Basis FunctionExpert Systems with Applications: An International Journal10.1016/j.eswa.2012.02.15439:10(9669-9675)Online publication date: 1-Aug-2012
  • (2010)A radial basis function redesigned for predicting a welding processProceedings of the 9th Mexican international conference on Artificial intelligence conference on Advances in soft computing: Part II10.5555/1927099.1927125(257-268)Online publication date: 8-Nov-2010
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      Published In

      cover image Guide Proceedings
      IWANN'05: Proceedings of the 8th international conference on Artificial Neural Networks: computational Intelligence and Bioinspired Systems
      June 2005
      1253 pages
      ISBN:3540262083
      • Editors:
      • Joan Cabestany,
      • Alberto Prieto,
      • Francisco Sandoval

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      Springer-Verlag

      Berlin, Heidelberg

      Publication History

      Published: 08 June 2005

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      View all
      • (2018)Comprehensive survey on haze removal techniquesMultimedia Tools and Applications10.1007/s11042-017-5321-677:8(9595-9620)Online publication date: 1-Apr-2018
      • (2012)Analysis and evaluation in a welding process applying a Redesigned Radial Basis FunctionExpert Systems with Applications: An International Journal10.1016/j.eswa.2012.02.15439:10(9669-9675)Online publication date: 1-Aug-2012
      • (2010)A radial basis function redesigned for predicting a welding processProceedings of the 9th Mexican international conference on Artificial intelligence conference on Advances in soft computing: Part II10.5555/1927099.1927125(257-268)Online publication date: 8-Nov-2010
      • (2007)Input selection for radial basis function networks by constrained optimizationProceedings of the 17th international conference on Artificial neural networks10.5555/1776814.1776841(239-248)Online publication date: 9-Sep-2007

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