Technology extraction from time series data reflecting expert operator skills and knowledge

  • Authors:
  • Setsuya Kurahashi

  • Affiliations:
  • Graduate School of Business Sciences, University of Tsukuba, 3-29-1 Otsuka, Bunkyo, Tokyo 112-0012, Japan

  • Venue:
  • International Journal of Computer Applications in Technology
  • Year:
  • 2008

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Abstract

Continuation processes in chemical and/or biotechnical plantsalways generate a large amount of time series data. However, sinceconventional process models are described as a set of controlmodels, it is difficult to explain the complicated and active plantbehaviours. Based on the background, this paper proposes a novelmethod to develop a process response model from continuoustime-series data. The method consists of the following phases: (1)reciprocal correlation analysis, (2) process response model, (3)extraction of control rules, (4) extraction of a workflow and (5)detecting outliers. The main contribution of the research is toestablish a method to mine a set of meaningful control rules fromLearning Classifier System (LCS) using the Minimum DescriptionLength (MDL) criteria and Tabu search method. The proposed methodhas been applied to an actual process of a biochemical plant andhas shown the validity and the effectiveness.