Optimal Selection of Support Vector Regression Parameters and Molecular Descriptors for Retention Indices Prediction

Author(s):  
Jun Zhang ◽  
Bing Wang ◽  
Xiang Zhang
2014 ◽  
Vol 543-547 ◽  
pp. 2045-2048
Author(s):  
Yuan Lv ◽  
Zhong Gan

In case of experimental data contaminated with errors and noise, the robust ε-support vector regression has good forecast accuracy and high generalization ability. However, it depends on the selection of system parameter. Firstly, this paper introduces the robust ε-support vector regression method. Secondly, as the experiments prove, the new method achieves high forecast accuracy by virtue of the optimal penalty parameter C. Finally, the optimal method of parameter C is presented in the last section.


NIR news ◽  
2006 ◽  
Vol 17 (4) ◽  
pp. 12-13
Author(s):  
Bülent Üstün ◽  
Willem Melssen ◽  
Lutgarde Buydens

2020 ◽  
Vol 123 ◽  
pp. 105050 ◽  
Author(s):  
Rafael Blanquero ◽  
Emilio Carrizosa ◽  
Asunción Jiménez-Cordero ◽  
Belén Martín-Barragán

2017 ◽  
Vol 2017 ◽  
pp. 1-12 ◽  
Author(s):  
Hailun Wang ◽  
Daxing Xu

Support vector regression algorithm is widely used in fault diagnosis of rolling bearing. A new model parameter selection method for support vector regression based on adaptive fusion of the mixed kernel function is proposed in this paper. We choose the mixed kernel function as the kernel function of support vector regression. The mixed kernel function of the fusion coefficients, kernel function parameters, and regression parameters are combined together as the parameters of the state vector. Thus, the model selection problem is transformed into a nonlinear system state estimation problem. We use a 5th-degree cubature Kalman filter to estimate the parameters. In this way, we realize the adaptive selection of mixed kernel function weighted coefficients and the kernel parameters, the regression parameters. Compared with a single kernel function, unscented Kalman filter (UKF) support vector regression algorithms, and genetic algorithms, the decision regression function obtained by the proposed method has better generalization ability and higher prediction accuracy.


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