Detection of ECG Arrhythmia using a differential expert system approach based on principal component analysis and least square support vector machine

2007 ◽  
Vol 186 (1) ◽  
pp. 898-906 ◽  
Author(s):  
Kemal Polat ◽  
Salih Güneş
Keyword(s):  
Principal Component Analysis ◽  
Support Vector Machine ◽  
Expert System ◽  
System Approach ◽  
Principal Component ◽  
Component Analysis ◽  
Least Square ◽  
Support Vector ◽  
Ecg Arrhythmia

scholarly journals An Intelligent System Approach for Asthma Prediction in Symptomatic Preschool Children

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
E. Chatzimichail ◽  
E. Paraskakis ◽  
M. Sitzimi ◽  
A. Rigas
Keyword(s):  
Principal Component Analysis ◽  
Support Vector Machine ◽  
Support Vector Machine Classifier ◽  
Outcome Prediction ◽  
Intelligent System ◽  
Principal Component ◽  
Component Analysis ◽  
Least Square ◽  
Support Vector ◽  
Asthma Outcome

Objectives. In this study a new method for asthma outcome prediction, which is based on Principal Component Analysis and Least Square Support Vector Machine Classifier, is presented. Most of the asthma cases appear during the first years of life. Thus, the early identification of young children being at high risk of developing persistent symptoms of the disease throughout childhood is an important public health priority.Methods. The proposed intelligent system consists of three stages. At the first stage, Principal Component Analysis is used for feature extraction and dimension reduction. At the second stage, the pattern classification is achieved by using Least Square Support Vector Machine Classifier. Finally, at the third stage the performance evaluation of the system is estimated by using classification accuracy and 10-fold cross-validation.Results. The proposed prediction system can be used in asthma outcome prediction with 95.54 % success as shown in the experimental results.Conclusions. This study indicates that the proposed system is a potentially useful decision support tool for predicting asthma outcome and that some risk factors enhance its predictive ability.

scholarly journals Transmission line engineering cost prediction based on principal component analysis and least square support vector machine

2019 ◽  
Vol 136 ◽  
pp. 01028
Author(s):  
Bo Yu ◽  
Zheng Wang ◽  
Xiaomin Liu ◽  
Tong Liu ◽  
Xinyi Liu
Keyword(s):  
Principal Component Analysis ◽  
Support Vector Machine ◽  
Transmission Line ◽  
Principal Component ◽  
Component Analysis ◽  
Least Square ◽  
Small Samples ◽  
Support Vector ◽  
The Cost ◽  
Line Engineering

Due to the many factors affecting the cost of transmission line engineering and the lack of mutual independence, it is difficult to predict the cost. Firstly, the principal component analysis is used to process the original indicator data, eliminating the correlation between the original indicators and extracting the potential comprehensive independent indicators. Then, the new indicator is used as the input set to construct the predictive learning model based on the least squares support vector machine, and the predicted output and the actual value are compared and analyzed. The results show that the model can achieve the desired prediction effect in the case of small samples.

scholarly journals Performance of Principal Component Analysis and Orthogonal Least Square on Optimized Feature Set in Classifying Asphyxiated Infant Cry Using Support Vector Machine

2018 ◽  
Vol 9 (1) ◽  
pp. 139
Author(s):  
R. Sahak ◽  
W. Mansor ◽  
Khuan Y. Lee ◽  
A. Zabidi
Keyword(s):  
Principal Component Analysis ◽  
Support Vector Machine ◽  
Classification Accuracy ◽  
Computation Time ◽  
Principal Component ◽  
Component Analysis ◽  
Least Square ◽  
Support Vector ◽  
Infant Cry ◽  
Orthogonal Least Square

<p>An investigation into optimized support vector machine (SVM) integrated with principal component analysis (PCA) and orthogonal least square (OLS) in classifying asphyxiated infant cry was performed in this study. Three approaches were used in the classification; SVM, PCA-SVM, and OLS-SVM. Various numbers of features extracted from Mel-frequency Cepstral coefficient (MFCC) were tested to obtain the optimal parameters of SVM kernels. Once the optimal feature set is obtained, PCA and OLS selected the most significant features and the optimized SVM then classified the selected cry patterns. In PCA-SVM, eigenvalue-one-criterion (EOC), cumulative percentage variance (CPV) and the Scree test (SCREE) were used to select the most significant features. SVM with radial basis function (RBF) kernel was chosen in the classification stage. The classification accuracy and computation time were computed to evaluate the performance of each method. The best method for classifying asphyxiated infant cry is PCA-SVM with EOC since it produces the highest classification accuracy which is 94.84%. Using PCA-SVM, the classification process was performed in 1.98s only. The results also show that employing feature selection techniques could enhance the classifier performance.</p>

Sign in / Sign up

Export Citation Format

Share Document