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Class imbalance problem is getting so much attention of researchers now a days. In real life there are number of applications that generates imbalanced data sets. Imbalance nature of data makes classification task difficult. Dealing with these kinds of imbalanced dataset is the one of the biggest challenge in the data mining. Imbalanced dataset means the ratio of positive and negative classes is not balanced. The class that is having more number of samples is known as majority class and thedoi:10.26483/ijarcs.v8i7.4530 fatcat:rkjrfhhuxvfddgqqszfnk7wjfu