@article{learningbaseddirectedgraphabstractionofc,
  title = {Learning-based Directed Graph Abstraction of Combinatorial Spaces for Order-Preserving Search in Mixed-Combinatorial Nonlinear Optimization},
  author = {Gishnu Madhu and Feng Liu and Souma Chowdhury},
  year = {2026},
  eprint = {2606.01425},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2606.01425},
}