Incremental Granular Model Improvement Using Particle Swarm Optimization
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2019
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Abstract
This paper proposes an incremental granular model (IGM) based on particle swarm optimization (PSO) algorithm. An IGM is a combination of linear regression (LR) and granular model (GM) where the global part calculates the error using LR. However, traditional CFCM clustering presents some problems because the number of clusters generated in each context is the same and a fixed value is used for fuzzification coefficient. In order to solve these problems, we optimize the number of clusters and their fuzzy numbers according to the characteristics of the data, and use natural imitative optimization PSO algorithm. We further evaluate the performance of the proposed method and the existing IGM by comparing the predicted performance using the Boston housing dataset. The Boston housing dataset contains housing price information in Boston, USA, and features 13 input variables and 1 output variable. As a result of the prediction, we can confirm that the proposed PSO-IGM shows better performance than the existing IGM.
| Reference Key |
yeom2019symmetryincremental
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| Authors | Chan-Uk Yeom;Keun-Chang Kwak;Yeom, Chan-Uk;Kwak, Keun-Chang; |
| Journal | Symmetry |
| Year | 2019 |
| DOI |
10.3390/sym11030390
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