scholarly journals Slope stability analysis based on quantum-behaved particle swarm optimization and least squares support vector machine

2015 ◽  
Vol 39 (17) ◽  
pp. 5253-5264 ◽  
Author(s):  
Bo Li ◽  
Duanyou Li ◽  
Zhijun Zhang ◽  
Shengmei Yang ◽  
Fan Wang
2011 ◽  
Vol 50-51 ◽  
pp. 624-628
Author(s):  
Xin Ma

Dissolved gas analysis (DGA) is an important method to diagnose the fault of power t ransformer. Least squares support vector machine (LS-SVM) has excellent learning, classification ability and generalization ability, which use structural risk minimization instead of traditional empirical risk minimization based on large sample. LS-SVM is widely used in pattern recognition and function fitting. Kernel parameter selection is very important and decides the precision of power transformer fault diagnosis. In order to enhance fault diagnosis precision, a new fault diagnosis method is proposed by combining particle swarm optimization (PSO) and LS-SVM algorithm. It is presented to choose σ parameter of kernel function on dynamic, which enhances precision rate of fault diagnosis and efficiency. The experiments show that the algorithm can efficiently find the suitable kernel parameters which result in good classification purpose.


2020 ◽  
Vol 24 (5 Part A) ◽  
pp. 2773-2780
Author(s):  
Yi Xiong ◽  
Yue Ming ◽  
Xiaohong Liao ◽  
Chuanyu Xiong ◽  
Wu Wen ◽  
...  

At present, the prediction of the life cycle cost of fabricated substation is of great significance for the construction of fabricated substation. An enhanced prediction model based on quantum particle swarm optimization (QPSO) via least squares support vector machine is established. The relevant characteristic index of the life cycle of the fabricated substation is used as the input of the model, and the output is the life cycle cost. The simulation results are compared with the prediction results of QPSO optimized least squares support vector machine (LS-SVM), PSO optimized LS-SVM, traditional LS-SVM, and backpropagation neural network, which shows that the QPSO optimized LS-SVM model has better prediction accuracy, can predict and evaluate the life cycle cost more quickly, and can improve the benefits of fabricated substation construction.


Sign in / Sign up

Export Citation Format

Share Document