Author(s)

Tipawan Silwattananusarn¹, Wanida Kanarkard², Kulthida Tuamsuk³

¹Department of Library and Information Science, Faculty of Humanities and Social Sciences, Prince of Songkla University, Hat Yai, Thailand.
²Department of Computer Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen, Thailand.
³Information and Communication Management Program, Faculty of Humanities and Social Sciences, Khon Kaen University, Khon Kaen, Thailand.

In this paper ensemble learning based feature selection and classifier ensemble model is proposed to improve classification accuracy. The hypothesis is that good feature sets contain features that are highly correlated with the class from ensemble feature selection to SVM ensembles which can be achieved on the performance of classification accuracy. The proposed approach consists of two phases: (i) to select feature sets that are likely to be the support vectors by applying ensemble based feature selection methods; and (ii) to construct an SVM ensemble using the selected features. The proposed approach was evaluated by experiments on Cardiotocography dataset. Four feature selection techniques were used: (i) Correlation-based, (ii) Consistency-based, (iii) ReliefF and (iv) Information Gain. Experimental results showed that using the ensemble of Information Gain feature selection and Correlation-based feature selection with SVM ensembles achieved higher classification accuracy than both single SVM classifier and ensemble feature selection with SVM classifier.

Classification, Feature Selection, Support Vector Machines, Ensemble Learning, Classification Accuracy

Silwattananusarn, T. , Kanarkard, W. and Tuamsuk, K. (2016) Enhanced Classification Accuracy for Cardiotocogram Data with Ensemble Feature Selection and Classifier Ensemble. Journal of Computer and Communications, 4, 20-35. doi: 10.4236/jcc.2016.44003.