@article{journals/isci/GalarFBH14,
  author = {Galar, Mikel and Fernández, Alberto and Barrenechea, Edurne and Herrera, Francisco},
  ee = {http://dx.doi.org/10.1016/j.ins.2013.12.053},
  journal = {Inf. Sci.},
  pages = {135-157},
  title = {Empowering difficult classes with a similarity-based aggregation in multi-class classification problems.},
  volume = 264,
  year = 2014
}