@article{anewindexforclusteringevaluationbased,
  title = {A New Index for Clustering Evaluation Based on Density Estimation},
  author = {Gangli Liu},
  year = {2022},
  eprint = {2207.01294},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2207.01294v4},
}