CMMNO 2014: Advances in Condition Monitoring of Machinery in Non-Stationary Operations pp 309-319 | Cite as
Diversity Measures in Classifier Ensembles Used for Rotating Machinery Fault Diagnosis
Abstract
Recent progress in computational intelligence, sensor technology and soft computing methods permit the use of complex systems to achieve diagnostic process goal. Among many, machine learning and pattern recognition techniques are often applied. When dealing with complex machinery use of one classifier is often insufficient. It is known that classifier ensembles (combined prediction from several classifiers) have the capability to outperform single classifier, because ensemble results are less dependent on peculiarities of a single training set. Additionally a combination of multiple classifiers may learn a more expressive class. In the paper a comparative study of different diversity measures for the rotating machine common faults detection and isolation. The main premise was to investigate if there is a link between diversity measure and classification accuracy. Although in several cases the connection between diversity and fault detection as well as isolation performance was revealed, the generalization of the diversity measuring concept cannot be clearly formulated.
Keywords
Classifier fusion Information diversity Dempster-Shafer theory Rotating machinery diagnosingNotes
Acknowledgments
Scientific work financed from resources assigned to statutory activity of Institute of Fundamentals of Machinery Design, Silesian University of Technology at Gliwice.
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