Author/Authors :
Wang, Lei National Local Joint Engineering Research Center for Communication and Network Technology - Nanjing University of Posts and Telecommunications, Nanjing, China , Zhao, Lei National Local Joint Engineering Research Center for Communication and Network Technology - Nanjing University of Posts and Telecommunications, Nanjing, China , Gui,Guan National Local Joint Engineering Research Center for Communication and Network Technology - Nanjing University of Posts and Telecommunications, Nanjing, China , Zheng, Baoyu National Local Joint Engineering Research Center for Communication and Network Technology - Nanjing University of Posts and Telecommunications, Nanjing, China , Huang, Ruochen National Local Joint Engineering Research Center for Communication and Network Technology - Nanjing University of Posts and Telecommunications, Nanjing, China
Abstract :
The class imbalance problems often reduce the classification performance of the majority of standard classifiers. Many methods have been developed to solve these problems, such as cost-sensitive learning methods, synthetic minority oversampling technique (SMOTE), and random oversampling (ROS). However, the existing methods still have some problems due to the possible performance loss of useful information and overfitting. To solve the problems, we propose an adaptive ensemble method by using the most advanced feature of self-adaption by considering an average Euclidean distance between test data and training data, where the average distance is calculated by -nearest neighbors (KNN) algorithm. Simulation results are provided to confirm that the proposed method has a better performance than existing ensemble methods.
