A Hybrid Feature Selection Method Based on Rough Conditional Mutual Information and Naive Bayesian Classifier. (30th March 2014)

• Record Type: Journal Article
• Authors: Zeng, Zilin; Zhang, Hongjun; Zhang, Rui; Zhang, Youliang
• Other Names: Bellouquid A. Academic Editor.; Biringen S. Academic Editor.; So H. C. Academic Editor.; Yee E. Academic Editor.
• Is Part Of: ISRN applied mathematics. Volume 2014(2014)
• Publication Date: 2014-03-30
• Subjects: Mathematics -- Periodicals; Mathematics; Periodicals; Electronic journals; 510
• DOI: 10.1155/2014/382738
• Languages: English
• ISSNs: 2090-5564

Abstract

Abstract : We introduced a novel hybrid feature selection method based on rough conditional mutual information and Naive Bayesian classifier. Conditional mutual information is an important metric in feature selection, but it is hard to compute. We introduce a new measure called rough conditional mutual information which is based on rough sets; it is shown that the new measure can substitute Shannon's conditional mutual information. Thus rough conditional mutual information can also be used to filter the irrelevant and redundant features. Subsequently, to reduce the feature and improve classification accuracy, a wrapper approach based on naive Bayesian classifier is used to search the optimal feature subset in the space of a candidate feature subset which is selected by filter model. Finally, the proposed algorithms are tested on several UCI datasets compared with other classical feature selection methods. The results show that our approach obtains not only high classification accuracy, but also the least number of selected features.