Comparative Study of Knowledge Extraction on the Industrial Applications

  • Woo, Young-Kwang (School of Electrical and Computer Eng., Pusan National University) ;
  • Bae, Hyeon (School of Electrical and Computer Eng., Pusan National University) ;
  • Kim, Sung-Shin (School of Electrical and Computer Eng., Pusan National University) ;
  • Woo, Kwang-Bang (Automation Technology Research Institute, Yonsei University)
  • Published : 2003.10.22

Abstract

Data is the expression of the language or numerical values that show some characteristics. And information is extracted from data for the specific purposes. The knowledge is utilized as information to construct rules that recognize patterns and make decisions. Today, knowledge extraction and application of the knowledge are broadly accomplished to improve the comprehension and to elevate the performance of systems in several industrial fields. The knowledge extraction could be achieved by some steps that include the knowledge acquisition, expression, and implementation. Such extracted knowledge can be drawn by rules. Clustering (CU, input space partition (ISP), neuro-fuzzy (NF), neural network (NN), extension matrix (EM), etc. are employed for expression the knowledge by rules. In this paper, the various approaches of the knowledge extraction are examined by categories that separate the methods by the applied industrial fields. Also, the several test data and the experimental results are compared and analysed based upon the applied techniques that include CL, ISP, NF, NN, EM, and so on.

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