@article{zeng2012discrete,
  title={Discrete heat kernel determines discrete Riemannian metric},
  author={Zeng, Wei and Guo, Ren and Luo, Feng and Gu, Xianfeng},
  journal={Graphical Models},
  volume={74},
  number={4},
  pages={121--129},
  year={2012},
  publisher={Elsevier}
}