Quaternion-based Deep Belief Networks fine-tuning

@article{Papa2017QuaternionbasedDB,
  title={Quaternion-based Deep Belief Networks fine-tuning},
  author={Jo{\~a}o Paulo Papa and Gustavo H. Rosa and Danillo Roberto Pereira and Xin-She Yang},
  journal={Appl. Soft Comput.},
  year={2017},
  volume={60},
  pages={328-335}
}