Imbalanced data-sets

López, V., Fernández, A., del Jesus Díaz, M. J., & Herrera Triguero, F. (2013). A hierarchical genetic fuzzy system based on genetic programming for addressing classification with highly imbalanced and borderline data-sets. Knowledge-Based Systems, 38, 85-104. https://doi.org/10.1016/j.knosys.2012.08.025
Fernández, A., López, V., Galar, M., del Jesus Díaz, M. J., Herrera Triguero, F., & BV, E. S. (2013). Analysing the classification of imbalanced data-sets with multiple classes: Binarization techniques and ad-hoc approaches. Knowledge-Based Systems, 42, 97-110. https://doi.org/10.1016/j.knosys.2013.01.018