Real-Valued LCS Using UNDX for Technology Extraction

  • Authors:
  • Setsuya Kurahashi

  • Affiliations:
  • University of Tsukuba, Tokyo, Japan 112-0012

  • Venue:
  • KES '08 Proceedings of the 12th international conference on Knowledge-Based Intelligent Information and Engineering Systems, Part II
  • Year:
  • 2008

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Abstract

This paper proposes a new method of developing a process response model from continuous time-series data. Chemical and/or biotechnical plants always generate a large amount of time series data. However, since conventional process models are described as a set of control models, it is difficult to explain complicated and active plant behaviors. To uncover complex plant behaviors, the method consists of the following phases: (1) Reciprocal correlation analysis; (2) Process response model; (3) Extraction of a workflow; (4) Extraction of control rules of real-valued data. The main contribution of the research is to establish a method to mine a set of meaningful control rules from a Learning Classifier System using UNDX(Unimodal Normal Distribution Crossover) for real-valued data. The proposed method has been applied to an actual process of a biochemical plant and has shown its validity and effectiveness.