|
|
Multi-Class Classification Methods of Cost-Conscious LS-SVM for Fault Diagnosis of Blast Furnace |
LIU Li-mei,WANG An-na,SHA Mo,ZHAO Feng-yun |
College of Information Science and Engineering, Northeastern University, Shenyang 110819, Liaoning, China |
|
|
Abstract Aiming at the limitations of rapid fault diagnosis of blast furnace, a novel strategy based on cost-conscious least squares support vector machine (LS-SVM) is proposed to solve this problem. Firstly, modified discrete particle swarm optimization is applied to optimize the feature selection and the LS-SVM parameters. Secondly, cost-conscious formula is presented for fitness function and it contains in detail training time, recognition accuracy and the feature selection. The CLS-SVM algorithm is presented to increase the performance of the LS-SVM classifier. The new method can select the best fault features in much shorter time and have fewer support vectors and better generalization performance in the application of fault diagnosis of the blast furnace. Thirdly, a gradual change binary tree is established for blast furnace faults diagnosis. It is a multi-class classification method based on center-of-gravity formula distance of cluster. A gradual change classification percentage is used to select sample randomly. The proposed new method raises the speed of diagnosis, optimizes the classification accuracy and has good generalization ability for fault diagnosis of the application of blast furnace.
|
Received: 28 September 2010
Published: 25 October 2011
|
Corresponding Authors:
Li-mei LIU
E-mail: liulimei_2006@163.com
|
|
|
|
[1] |
Hong-tao Wang,Wei Zhao,Man-sheng Chu,Cong Feng,Zheng-gen Liu,Jue Tang. Current status and development trends of innovative blast furnace ironmaking technologies aimed to environmental harmony and operation intellectualization[J]. Chinese Journal of Iron and Steel, 2017, 24(8): 751-769. |
[2] |
Wei Zhang,,Zheng-liang Xue,Ju-hua Zhang,Wei Wang,Chang-gui Cheng,Zong-shu Zou. Medium oxygen enriched blast furnace with top gas recycling strategy[J]. Chinese Journal of Iron and Steel, 2017, 24(8): 778-786. |
[3] |
Qian-qian Ren,,Yu-zhu Zhang,,*,Yue Long,Shao-sheng Chen,Zong-shu Zou,Jie Li, Chen-guang Xu. Crystallization behavior of blast furnace slag modified by adding iron ore tailing[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 601-607. |
[4] |
Xue-feng She,*,Xiu-wei An,Jing-song Wang,Qing-guo Xue,Ling-tan Kong. Numerical analysis of carbon saving potential in a top gas recycling oxygen blast furnace[J]. Chinese Journal of Iron and Steel, 2017, 24(6): 608-616. |
[5] |
Xun-fu Wang,,Qi-jie Zhai. Corrosion mechanism research and microstructure analysis of Baosteel No��3 blast furnace hearth[J]. Chinese Journal of Iron and Steel, 2017, 24(10): 1016-1022. |
[6] |
Chong Zou,*,Liang-ying Wen,Jun-xue Zhao,Rui-meng Shi. Interaction mechanism between coal combustion products and coke in raceway of blast furnaces[J]. Chinese Journal of Iron and Steel, 2017, 24(1): 8-17. |
|
|
|
|