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基于SOR-LS-SVM算法的公交站点客流量预测研究
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作者 张朝元 陈丽 《湖南工程学院学报(自然科学版)》 2009年第4期68-71,共4页
公交站点客流量情况的及时准确预测对提供更可靠的公交服务和节省公交公司的运营成本是非常重要.首先对标准的LS-SVM算法进行了改进,得到一种新的SOR-LS-SVM学习算法.该算法不仅能减少计算的复杂性,提高学习速度;同时能提高函数估计的... 公交站点客流量情况的及时准确预测对提供更可靠的公交服务和节省公交公司的运营成本是非常重要.首先对标准的LS-SVM算法进行了改进,得到一种新的SOR-LS-SVM学习算法.该算法不仅能减少计算的复杂性,提高学习速度;同时能提高函数估计的精确度.然后利用SOR-LS-SVM算法对公交站点的客流量情况进行预测和模拟.实验结果表明改进的SOR-LS-SVM算法具有较高的预测精度,且实验取得了较好效果. 展开更多
关键词 ls-svm法 SOR-ls-svm 公交站点 客流量 预测
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LS-SVM model based nonlinear predictive control for MCFC system
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作者 CHEN Yue-hua CAO Guang-yi ZHU Xin-jian 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第5期748-754,共7页
This paper describes a nonlinear model predictive controller for regulating a molten carbonate fuel cell (MCFC). In order to improve MCFC’s generating performance, prolong its life and guarantee safety, it must be co... This paper describes a nonlinear model predictive controller for regulating a molten carbonate fuel cell (MCFC). In order to improve MCFC’s generating performance, prolong its life and guarantee safety, it must be controlled efficiently. First, the output voltage of an MCFC stack is identified by a least squares support vector machine (LS-SVM) method with radial basis function (RBF) kernel so as to implement nonlinear predictive control. And then, the optimal control sequences are obtained by applying genetic algorithm (GA). The model and controller have been realized in the MATLAB environment. Simulation results indicated that the proposed controller exhibits satisfying control effect. 展开更多
关键词 Molten carbonate fuel cell (MCFC) Least squares support vector machine ls-svm Genetic algorithm (GA) Nonlinear predictive controller
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