@article{nakaishi-etal-2026-rethinking,
    title = "Rethinking the Relationship between the Power Law and Hierarchical Structures",
    author = "Nakaishi, Kai  and
      Yoshida, Ryo  and
      Kajikawa, Kohei  and
      Hukuahima, Koji  and
      Oseki, Yohei",
    journal = "Transactions of the Association for Computational Linguistics",
    volume = "14",
    year = "2026",
    address = "Cambridge, MA",
    publisher = "MIT Press",
    url = "https://aclanthology.org/2026.tacl-1.87/",
    doi = "10.1162/tacl.a.785",
    pages = "1917--1934"
}