Title: Precision coupling system modelling based on rough set and support vector machine

Authors: Jian-wei Ma; Fu-ji Wang; Zhen-yuan Jia; Wei Liu

Addresses: Key Laboratory for Precision and Non-traditional Machining, Technology of the Ministry of Education, School of Mechanical Engineering, Dalian University of Technology, Dalian, 116024, China ' Key Laboratory for Precision and Non-traditional Machining, Technology of the Ministry of Education, School of Mechanical Engineering, Dalian University of Technology, Dalian, 116024, China ' Key Laboratory for Precision and Non-traditional Machining, Technology of the Ministry of Education, School of Mechanical Engineering, Dalian University of Technology, Dalian, 116024, China ' Key Laboratory for Precision and Non-traditional Machining, Technology of the Ministry of Education, School of Mechanical Engineering, Dalian University of Technology, Dalian, 116024, China

Abstract: This paper presents the results of a research into the use of rough set (RS) for the precision coupling system modelling based on support vector machine (SVM). Because of the impact of multiple geometric parameters, there are more input variables in the precision coupling system modelling process. The high-dimensional data poses an interesting challenge to machine learning, as the presence of large numbers of redundant or highly correlated variables can seriously degrade modelling accuracy. In this study, a modelling method was developed based on rough set and support vector machine for precision coupling system. We used RS as the pre-processor for precision coupling system modelling, so as to realise dimension reduction of the high-dimensional data and improve the predictive performance of machine learning method, and then SVM was used for precision coupling system modelling. Experiments were carried out on a typical precision coupling, hydraulic valve. The results show that the use of RS method can improve the performance of machine learning in the modelling of high-dimensional data.

Keywords: rough sets; support vector machines; SVM; hydraulic valves; characteristics prediction; precision coupling; modelling; machine learning.

DOI: 10.1504/IJSCOM.2013.052229

International Journal of Service and Computing Oriented Manufacturing, 2013 Vol.1 No.1, pp.92 - 102

Published online: 02 Jul 2014 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article