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Efficient KPCA-based feature extraction: A novel algorithm and experiments

  • Yong Xu*
  • , David Zhang
  • , Jing Yu Yang
  • , Zhong Jing
  • , Miao Li
  • *Corresponding author for this work
  • Nanjing University of Science and Technology
  • Harbin Institute of Technology Shenzhen
  • Hong Kong Polytechnic University

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

KPCA has been widely used for feature extraction. It is noticeable that the efficiency of KPCA-based feature extraction is in inverse proportion to the size of the training sample set. In order to speed up KPCA-based feature extraction, we develop a novel algorithm(i.e. IKPCA) which improves KPCA with a distinctive viewpoint. The algorithm is methodologically consistent with KPCA with clear physical meaning. Experiments on several benchmark datasets illustrate that IKPCA-based feature extraction is much faster than KPCA-based feature extraction. The ratio of IKPCA-based feature extraction time to KPCA-based feature extraction time may be smaller than 0.30. Furthermore, the classification accuracy corresponding to IKPCA is comparable with KPCA.

Original languageEnglish
Title of host publicationIntelligent Computing in Signal Processing and Pattern Recognition
Subtitle of host publicationInternational Conference on Intelligent Computing, ICIC 2006
EditorsDe-Shaung Huang, Kang Li, George William Irwin
Pages220-229
Number of pages10
DOIs
StatePublished - 2006
Externally publishedYes

Publication series

NameLecture Notes in Control and Information Sciences
Volume345
ISSN (Print)0170-8643

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