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A Novel Class Imbalance Learning Method using Neural Networks

K. Nageswara Rao, D. Rajya Lakshmi, T. Venkateswara Rao Published in Artificial Intelligence

International Journal of Applied Information Systems
Year of Publication 2012
© 2010 by IJAIS Journal
10.5120/ijais12-450594
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  1. Nageswara K Rao, Rajya D Lakshmi and Venkateswara T Rao. Article: A Novel Class Imbalance Learning Method using Neural Networks. International Journal of Applied Information Systems 3(7):31-38, August 2012. BibTeX

    @article{key:article,
    	author = "K. Nageswara Rao and D. Rajya Lakshmi and T. Venkateswara Rao",
    	title = "Article: A Novel Class Imbalance Learning Method using Neural Networks",
    	journal = "International Journal of Applied Information Systems",
    	year = 2012,
    	volume = 3,
    	number = 7,
    	pages = "31-38",
    	month = "August",
    	note = "Published by Foundation of Computer Science, New York, USA"
    }
    

Abstract

In Data mining and Knowledge Discovery hidden and valuable knowledge from the data sources is discovered. The traditional algorithms used for knowledge discovery are bottle necked due to wide range of data sources availability. Class imbalance is a one of the problem arises due to data source which provide unequal class i. e. examples of one class in a training data set vastly outnumber examples of the other class(es). In this paper, we present a new hybrid approach using neural networks to improve the class imbalance results. This algorithm provides a simpler and faster alternative by using multi perceptron back propagation neural network as base algorithm. We conduct experiments using eleven UCI data sets from various application domains using four base learners, and five evaluation metrics. Experimental results show that our method has shown good performance in terms of Area under the ROC Curve, F-measure, precision, TP rate and TN rate values than many existing class imbalance learning methods.

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Keywords

Classification, class imbalance, weighted sampling, subset filtering,CILNN