Artificial Intelligence Techniques for Unbalanced Datasets in Real World Classification Tasks
Marco Vannucci, Valentina Colla, Silvia Cateni, Mirko Sgarbi · Machine Learning · 2011
In this chapter a survey on the problem of classification tasks in unbalanced datasets is presented. The effect of the imbalance of the distribution of target classes in databases is analyzed with respect to the performance of standard classifiers such as decision trees and support vector machines, and the main approaches to improve the generally not satisfactory results obtained by such methods are described. Finally, two typical applications coming from real world frameworks are introduced, and the uses of the techniques employed for the related classification tasks are shown in practice.