@article{hierarchicalinterpretablelabelfreeconcep,
  title = {Hierarchical, Interpretable, Label-Free Concept Bottleneck Model},
  author = {Haodong Xie and Yujun Cai and Rahul Singh Maharjan and Yiwei Wang and Federico Tavella and Angelo Cangelosi},
  year = {2026},
  eprint = {2604.02468},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2604.02468},
}