@article{ahierarchicaltransitivealignedgraph,
  title = {A Hierarchical Transitive-Aligned Graph Kernel for Un-attributed Graphs},
  author = {Lu Bai and Lixin Cui and Edwin R. Hancock},
  year = {2020},
  eprint = {2002.04425},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2002.04425v1},
}