@article{topkregularizationforsupervisedfeature,
  title = {Top-$k$ Regularization for Supervised Feature Selection},
  author = {Xinxing Wu and Qiang Cheng},
  year = {2021},
  eprint = {2106.02197},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2106.02197v1},
}