@inproceedings{oya-2025-ud,
    title = "{UD} Treebanks for {E}speranto as a natural language",
    author = "Oya, Masanori",
    editor = {Bomma, Gosse  and
      {\c{C}}{\"o}ltekin, {\c{C}}a{\u{g}}r{\i}},
    booktitle = "Proceedings of the Eighth Workshop on Universal Dependencies (UDW, SyntaxFest 2025)",
    month = aug,
    year = "2025",
    address = "Ljubljana, Slovenia",
    publisher = "Association for Computational Linguistics",
    url = "https://preview.aclanthology.org/mtsummit-25-ingestion/2025.udw-1.3/",
    pages = "22--29",
    ISBN = "979-8-89176-292-3",
    abstract = "This paper describes the details of UD-based morphological and syntactic annotations on Esperanto texts to construct its small-scale UD treebank. Though it was created as an international auxiliary language, Esperanto has increasingly been studied as a natural language both in linguistics and in NLP. This paper introduces the detail of manual annotation of UD morphological and relational tags and describes how the frequencies of these tags differ across the treebanks and discusses the possibility of future research of Esperanto as a natural language."
}