Dimensional reduction effects of feature vectors by coefficients of determination

  • Authors:
  • Jong-Wan Kim;Byung-Kon Hwang;Sin-Jae Kang;Hee-Jae Kim;Young-Cheol Oh

  • Affiliations:
  • School of Computer and Information Technology, Daegu University, South Korea;School of Computer and Information Technology, Daegu University, South Korea;School of Computer and Information Technology, Daegu University, South Korea;School of Computer and Information Technology, Daegu University, South Korea;School of Computer and Information Technology, Daegu University, South Korea

  • Venue:
  • CIS'04 Proceedings of the First international conference on Computational and Information Science
  • Year:
  • 2004

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Abstract

This paper presents a method to reduce features less contributing to the classification of user preferred news groups among several news groups by the use of fuzzy inference and coefficient of determination. To this end, we extract a number of representative keywords from example documents through fuzzy inference. From the observation of training patterns, we found that lots of keywords in training patterns are empty. Thus, a new method to train neural network through reduction of unnecessary dimensions by the statistical coefficient of determination is proposed in this paper. Experimental results show that the proposed method is superior to the method using lots of input attributes in terms of within-cluster variance and its standard deviation.