@article{JMLR:v27:23-0218,
  author  = {Xiang Gu and Yucheng Yang and Wei Zeng and Jian Sun and Zongben Xu},
  title   = {Keypoint-Guided Optimal Transport: Models, Algorithms, and Applications},
  journal = {Journal of Machine Learning Research},
  year    = {2026},
  volume  = {27},
  number  = {139},
  pages   = {1--60},
  url     = {http://jmlr.org/papers/v27/23-0218.html}
}