An optimization of granular network by evolutionary methods

  • Authors:
  • Yun-Hee Han;Keun-Chang Kwak

  • Affiliations:
  • Dept. of Control, Instrumentation and Robot Engineering, Chosun University, Gwangju, South Korea;Dept. of Control, Instrumentation and Robot Engineering, Chosun University, Gwangju, South Korea

  • Venue:
  • AIKED'10 Proceedings of the 9th WSEAS international conference on Artificial intelligence, knowledge engineering and data bases
  • Year:
  • 2010

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Abstract

In this paper, we present an optimization method of GN (Granular Network) based on evolutionary methods such as PSO (Particle Swarm optimization) and GA (Genetic Algorithm). The GN is constructed by linguistic model using CFCM (Context-based Fuzzy C-Means) clustering algorithm while forming a unified conceptual and computing platform of granular computing. This network performs relationship between fuzzy sets defined in the input and output space while building information granules, and accomplishes user-centric system. Here, the number of cluster obtained in each context and fuzzification factor are optimized by PSO and GA. Finally, we compare and analyze the predication performance between the presented networks and other models for coagulant dosing process in a water purification plant.