Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation Process

Due to the complexity and uncertainty of microbial fermentation processes, data coming from the plants often contain some outliers. However, these data may be treated as the normal support vectors, which always deteriorate the performance of soft sensor modeling. Since the outliers also contaminate...

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Main Authors: Weili Xiong, Wei Zhang, Dengfeng Liu, Baoguo Xu
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2014/794368
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author Weili Xiong
Wei Zhang
Dengfeng Liu
Baoguo Xu
author_facet Weili Xiong
Wei Zhang
Dengfeng Liu
Baoguo Xu
author_sort Weili Xiong
collection DOAJ
description Due to the complexity and uncertainty of microbial fermentation processes, data coming from the plants often contain some outliers. However, these data may be treated as the normal support vectors, which always deteriorate the performance of soft sensor modeling. Since the outliers also contaminate the correlation structure of the least square support vector machine (LS-SVM), the fuzzy pruning method is provided to deal with the problem. Furthermore, by assigning different fuzzy membership scores to data samples, the sensitivity of the model to the outliers can be reduced greatly. The effectiveness and efficiency of the proposed approach are demonstrated through two numerical examples as well as a simulator case of penicillin fermentation process.
format Article
id doaj-art-9b91a921b67c490eb6ce634e5d959dc4
institution Kabale University
issn 1085-3375
1687-0409
language English
publishDate 2014-01-01
publisher Wiley
record_format Article
series Abstract and Applied Analysis
spelling doaj-art-9b91a921b67c490eb6ce634e5d959dc42025-02-03T05:53:41ZengWileyAbstract and Applied Analysis1085-33751687-04092014-01-01201410.1155/2014/794368794368Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation ProcessWeili Xiong0Wei Zhang1Dengfeng Liu2Baoguo Xu3Key Laboratory of Advanced Process Control for Light Industry (Ministry of Education), Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaSchool of Internet of Things Engineering, Jiangnan University, Wuxi 214122, ChinaDue to the complexity and uncertainty of microbial fermentation processes, data coming from the plants often contain some outliers. However, these data may be treated as the normal support vectors, which always deteriorate the performance of soft sensor modeling. Since the outliers also contaminate the correlation structure of the least square support vector machine (LS-SVM), the fuzzy pruning method is provided to deal with the problem. Furthermore, by assigning different fuzzy membership scores to data samples, the sensitivity of the model to the outliers can be reduced greatly. The effectiveness and efficiency of the proposed approach are demonstrated through two numerical examples as well as a simulator case of penicillin fermentation process.http://dx.doi.org/10.1155/2014/794368
spellingShingle Weili Xiong
Wei Zhang
Dengfeng Liu
Baoguo Xu
Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation Process
Abstract and Applied Analysis
title Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation Process
title_full Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation Process
title_fullStr Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation Process
title_full_unstemmed Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation Process
title_short Fuzzy Pruning Based LS-SVM Modeling Development for a Fermentation Process
title_sort fuzzy pruning based ls svm modeling development for a fermentation process
url http://dx.doi.org/10.1155/2014/794368
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AT baoguoxu fuzzypruningbasedlssvmmodelingdevelopmentforafermentationprocess