@article{directionconcentrationlearningenhancing,
  title = {Direction Concentration Learning: Enhancing Congruency in Machine Learning},
  author = {Yan Luo and Yongkang Wong and Mohan S. Kankanhalli and Qi Zhao},
  year = {2019},
  eprint = {1912.08136},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1912.08136v2},
}