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Air Quality Modeling by Fuzzy Sets and IF-Sets

Air Quality Modeling by Fuzzy Sets and IF-Sets
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Author(s): Vladimír Olej (University of Pardubice, Czech Republic)and Petr Hájek (University of Pardubice, Czech Republic)
Copyright: 2011
Pages: 26
Source title: Environmental Modeling for Sustainable Regional Development: System Approaches and Advanced Methods
Source Author(s)/Editor(s): Vladimír Olej (University of Pardubice, Czech Republic), Ilona Obršálová (University of Pardubice, Czech Republic)and Jirí Krupka (University of Pardubice, Czech Republic)
DOI: 10.4018/978-1-60960-156-0.ch006

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Abstract

The chapter presents a design of parameters for air quality classification of districts into classes according to their pollution. Therefore, the chapter presents basic notions of fuzzy sets introduced by L. A. Zadeh for design hierarchical fuzzy inference systems Mamdani type and IF-sets introduced by K. T. Atanassov for design of hierarchical IF-inference systems Mamdani type. In the next part of the chapter the authors describe air quality modeling by hierarchical fuzzy inference systems, hierarchical IF-inference systems and we analyze the results. Moreover, the chapter describes air quality modeling, the design of membership functions and non-membership functions, if-then rules of individual subsystems and inference mechanism. Further, the authors present basic notions of IF-relations and their determination by Kohonen’s Self-organizing Feature Maps and K-means algorithms and process air quality classification.

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