Fatma Hamdi Mustapha Lebbah Younès Bennani Topographic under-sampling for unbalanced distributions. 1-6 2010 IJCNN http://dx.doi.org/10.1109/IJCNN.2010.5596294 conf/ijcnn/2010 db/conf/ijcnn/ijcnn2010.html#HamdiLB10