Long-term prediction model of rockburst in underground openings using heuristic algorithms and support vector machines

2012 ◽  
Vol 50 (4) ◽  
pp. 629-644 ◽  
Author(s):  
Jian Zhou ◽  
Xibing Li ◽  
Xiuzhi Shi
2014 ◽  
Vol 14 (6) ◽  
pp. 1886-1897 ◽  
Author(s):  
Chenglong Dai ◽  
Dechang Pi ◽  
Zhen Fang ◽  
Hui Peng

2020 ◽  
Vol 165 ◽  
pp. 06026
Author(s):  
Yongli Wang ◽  
Yanchao Lu ◽  
Jingyan Wang ◽  
Xiaohui Wang ◽  
Shuo Wang ◽  
...  

Economic transformation creates a new environment for grid investment. In the situation of high quality development, the traditional investment scale prediction model is no longer applicable. Aiming at the problems of single parameter of grid-driven investment scale prediction model and poor linear fitting accuracy, a provincial medium- and long-term investment scale prediction model based on support vector machine was proposed. Aiming at the single parameter and poor line fitting accuracy of the grid-driven investment scale prediction model under the new situation, the new environment, new directions and new requirements for grid investment are analyzed. Based on the support vector machine algorithm, a medium-and long-term investment scale prediction model for provincial grids based on support vector machines is proposed. The scale of provincial grid investment is expected from 2019 to 2022. The empirical results show that the prediction model constructed in this paper is effective and feasible. It is of great significance to explore the prediction model of medium and long-term investment scale of power grid enterprises in the new situation.


Author(s):  
M. Zhou ◽  
C. R. Li ◽  
L. Ma ◽  
H. C. Guan

In this study, a land cover classification method based on multi-class Support Vector Machines (SVM) is presented to predict the types of land cover in Miyun area. The obtained backscattered full-waveforms were processed following a workflow of waveform pre-processing, waveform decomposition and feature extraction. The extracted features, which consist of distance, intensity, Full Width at Half Maximum (FWHM) and back scattering cross-section, were corrected and used as attributes for training data to generate the SVM prediction model. The SVM prediction model was applied to predict the types of land cover in Miyun area as ground, trees, buildings and farmland. The classification results of these four types of land covers were obtained based on the ground truth information according to the CCD image data of Miyun area. It showed that the proposed classification algorithm achieved an overall classification accuracy of 90.63%. In order to better explain the SVM classification results, the classification results of SVM method were compared with that of Artificial Neural Networks (ANNs) method and it showed that SVM method could achieve better classification results.


2020 ◽  
Vol 146 (6) ◽  
pp. 04020010 ◽  
Author(s):  
Afshin Ashrafzadeh ◽  
Ozgur Kişi ◽  
Pouya Aghelpour ◽  
Seyed Mostafa Biazar ◽  
Mohammadreza Askarizad Masouleh

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