Nested SVDD in DAG SVM for induction motor condition monitoring

Autor: Slaheddine Zgarni, Ahmed Braham, Hassen Keskes
Rok vydání: 2018
Předmět:
Zdroj: Engineering Applications of Artificial Intelligence. 71:210-215
ISSN: 0952-1976
DOI: 10.1016/j.engappai.2018.02.019
Popis: Nowadays, multiclass classification is considered as the leading technique on the issue of condition monitoring in induction motor which can be performed accurately and efficiently by support vectors machines. The standard multiclass SVM (MSVM) approaches consists in constructing an optimal decision hyperplane maximizing the margin of separation between the training data. However, relatively small number of outliers can obviously reduce the performance of the classical MSVMs and would have an impact on the decision boundary and the margin calculation. Support Vector Data Description (SVDD) based on hyper-spheres decision boundary is often performed to overcome this drawback. The originality of this paper is to introduce a new extension of the MSVM for broken rotor bar fault diagnosis by embedding the SVDD in the classical multiclass SVM. The experimental results prove the merit of the proposed approach with a classification rate of 100%, which is higher than any accuracy rate achieved by standard MSVM approaches.
Databáze: OpenAIRE