“Feature Selection Based on Genetic Algorithms that Achieves High Recognition Rates and Low Numbers of Dimensions and its Application to Character Recognition”

Akira Suzukl, Masashi Morimoto, Shunichi Yonemura, Satoshi Shimada

Research output: Contribution to journalArticle

Abstract

In this paper, we propose an improved feature selection method based on genetic algorithms (GA) that achieves both high recognition rates and low numbers of dimensions. This method performs the first search using a GA that uses recognition rate as fitness, and performs the second search with a GA which uses the number of dimensions (reduction) as fitness while avoiding a drop in recognition rate. To speed up the second search,we introduce a special chromosome with maximum reduction quantity that treats all features as unselected as the information source of the GA. We perform experiments using five sets of hand-written Kanji character patterns. Each set consists of patterns in two similar categories. The results show that the proposed method reduces the number of dimensions to 6.2% of the original value wile providing higher recognition rates than the method that uses all features.

Original languageEnglish
Pages (from-to)891-899
Number of pages9
JournalJournal of the Institute of Image Electronics Engineers of Japan
Volume40
Issue number5
DOIs
Publication statusPublished - 2011
Externally publishedYes

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Keywords

  • character recognition
  • feature selection
  • genetic algorithms
  • number of dimensions
  • recognition rate

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering

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