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    Please use this identifier to cite or link to this item: https://ir.fy.edu.tw:8080/ir/handle/987654321/10045

    Title: Mining the fuzzy control rules of aeration in a Submerged Biofilm Wastewater Treatment Process
    Authors: Chen, Jeng-Chung;Chang, Ni-Bin
    Contributors: 輔英科技大學 環境工程與科學系
    Keywords: Neural networks;Fuzzy logic control;Hybrid approach;Process control;Wastewater treatment
    Date: 2007-10
    Issue Date: 2010-11-16 17:38:12 (UTC+8)
    Abstract: This paper presents a special rule base extraction analysis for optimal design of an integrated neural-fuzzy process controller using an “impact assessment approach.” It sheds light on how to avoid some unreasonable fuzzy control rules by screening inappropriate fuzzy operators and reducing over fitting issues simultaneously when tuning parameter values for these prescribed fuzzy control rules. To mitigate the design efforts, the self-learning ability embedded in the neural networks model was emphasized for improving the rule extraction performance. An aeration unit in an Aerated Submerged Biofilm Wastewater Treatment Process (ASBWTP) was picked up to support the derivation of a solid fuzzy control rule base. Four different fuzzy operators were compared against one other in terms of their actual performance of automated knowledge acquisition in the system based on a partial or full rule base prescribed. Research findings suggest that using bounded difference fuzzy operator (Ob) in connection with back propagation neural networks (BPN) algorithm would be the best choice to build up this feedforward fuzzy controller design.
    Relation: Engineering Applications of Artificial Intelligence,Volume 20, Issue 7, Pages 959-969
    Appears in Collections:[環境工程與科學系] 期刊論文

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