@article{revisitingdatacomplexitymetricsbasedon,
  title = {Revisiting Data Complexity Metrics Based on Morphology for Overlap and Imbalance: Snapshot, New Overlap Number of Balls Metrics and Singular Problems Prospect},
  author = {José Daniel Pascual-Triana and David Charte and Marta Andrés Arroyo and Alberto Fernández and Francisco Herrera},
  year = {2020},
  eprint = {2007.07935},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2007.07935v1},
}