Determination of minimum sample size for fault diagnosis of automobile hydraulic brake system using power analysis

Autor: V. Indira, R. Vasanthakumari, R. Jegadeeshwaran, V. Sugumaran
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Engineering Science and Technology, an International Journal, Vol 18, Iss 1, Pp 59-69 (2015)
Druh dokumentu: article
ISSN: 2215-0986
DOI: 10.1016/j.jestch.2014.09.007
Popis: Hydraulic brake in automobile engineering is considered to be one of the important components. Condition monitoring and fault diagnosis of such a component is very essential for safety of passengers, vehicles and to minimize the unexpected maintenance time. Vibration based machine learning approach for condition monitoring of hydraulic brake system is gaining momentum. Training and testing the classifier are two important activities in the process of feature classification. This study proposes a systematic statistical method called power analysis to find the minimum number of samples required to train the classifier with statistical stability so as to get good classification accuracy. Descriptive statistical features have been used and the more contributing features have been selected by using C4.5 decision tree algorithm. The results of power analysis have also been verified using a decision tree algorithm namely, C4.5.
Databáze: Directory of Open Access Journals