基于加权LS-SVM的青霉素发酵过程建模

doi:10.3969/j.issn.0438-1157.2012.09.038

化工学报 ›› 2012, Vol. 63 ›› Issue (9): 2913-2919.DOI: 10.3969/j.issn.0438-1157.2012.09.038

基于加权LS-SVM的青霉素发酵过程建模

熊伟丽^1,2, 王肖², 陈敏芳², 徐保国²

1. 轻工过程先进控制教育部重点实验室, 江苏无锡 214122;
2. 江南大学物联网工程学院自动化系, 江苏无锡 214122

收稿日期:2012-06-26 修回日期:2012-07-02 出版日期:2012-09-05 发布日期:2012-09-05
通讯作者: 熊伟丽
作者简介:熊伟丽(1978-),女,博士,副教授。
基金资助:
国家自然科学基金项目(21206053,30971689);中国博士后科学基金项目(2012M511678);江苏高校优势学科建设工程项目(PAPD);江苏省博士后科学基金项目(1101021B)。

Modeling for penicillin fermentation process based on weighted LS-SVM

XIONG Weili^1,2, WANG Xiao², CHEN Minfang², XU Baoguo²

1. Key Laboratory of Advanced Process Control for Light Industry, Jiangnan University, Wuxi 214122, Jiangsu, China;
2. Department of Automation, College of IOT Engineering, Jiangnan University, Wuxi 214122, Jiangsu, China

Received:2012-06-26 Revised:2012-07-02 Online:2012-09-05 Published:2012-09-05
Supported by:
supported by the National Natural Science Foundation of China(21206053,30971689),China Postdoctoral Science Foundation(2012M511678),a Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD)and Postdoctoral Science Foundation of Jiangsu Province(1101021B).

摘要/Abstract

摘要： 青霉素发酵过程中,一些重要参数的检测存在一定的误差,给生产过程的监测及重要参数的实时监控等带来一定困难。样本数据中自变量、因变量均有可能包含误差数据,影响模型建立的准确性,本文采用加权最小二乘算法,给各个样本的误差平方赋予不同权重用于克服异常训练样本的影响,利用Pensim仿真平台数据,采用粒子群算法(PSO)对加权最小二乘向量机算法(WLS-SVM)的参数寻优,建立青霉素发酵过程模型,通过仿真实验表明了该算法用于青霉素发酵过程建模的有效性。

关键词: 加权, 最小二乘支持向量机, 建模, 青霉素

Abstract: Some important parameters testing have certain error which brings some difficulty to ensure monitoring the production process and the real-time control of some important quality parameters.Because of the error data may be contained in the independent variables and dependent variables of the sample data,which may affect the accuracy of the model,so in this article we use the weighted least-square algorithm to give the punishment of square-errors of each sample different weights to overcome the abnormal influence of the training samples.Using the simulation data from the Pensim simulation platform to establish the weighted least squares vector machine(WLS-SVM)model in the Penicillin Fermentation by using particle swarm optimization(PSO)on the weighted least squares vector machine parameters optimization algorithm,through the simulation experiments show that the algorithm is used for the effectiveness of penicillin fermentation process modeling.

Key words: weighting, the least square support vector machine, model, penicillin

中图分类号:

TP183

熊伟丽, 王肖, 陈敏芳, 徐保国. 基于加权LS-SVM的青霉素发酵过程建模[J]. 化工学报, 2012, 63(9): 2913-2919.

XIONG Weili, WANG Xiao, CHEN Minfang, XU Baoguo. Modeling for penicillin fermentation process based on weighted LS-SVM[J]. CIESC Journal, 2012, 63(9): 2913-2919.

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基于加权LS-SVM的青霉素发酵过程建模

Modeling for penicillin fermentation process based on weighted LS-SVM

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