@article{JMLR:v27:25-0947,
  author  = {Samantha Chen and Sunhyuk Lim and Facundo M{{\'e}}moli and Zhengchao Wan and Yusu Wang},
  title   = {Weisfeiler-Lehman Meets Optimal Transport: Theory, Algorithms, and Implications},
  journal = {Journal of Machine Learning Research},
  year    = {2026},
  volume  = {27},
  number  = {223},
  pages   = {1--79},
  url     = {http://jmlr.org/papers/v27/25-0947.html}
}