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The Vietnamese UD treebank is a conversion of the constituent treebank created in the VLSP project (


  • Phuong-Thai Nguyen, Xuan-Luong Vu, Thi-Minh-Huyen Nguyen, Van-Hiep Nguyen, Hong-Phuong Le (2009). Building a Large Syntactically-Annotated Corpus of Vietnamese. In Proceedings of the Third Linguistic Annotation Workshop, ACL-IJCNLP 2009, pp. 182-185, Suntec, Singapore (


  • 2018-04-15 v2.2
    • Repository renamed from UD_Vietnamese to UD_Vietnamese-VTB.
  • 2017-03-01 v2.0
    • Converted to UD v2 guidelines.
  • 2016-11-15 v1.4
    • Initial release in Universal Dependencies.
=== Machine-readable metadata =================================================
Data available since: UD v1.4
License: CC BY-SA 4.0
Includes text: yes
Genre: news
Lemmas: converted from manual
UPOS: converted from manual
XPOS: manual native
Features: converted from manual
Relations: converted from manual
Contributors: Nguyễn Thị, Lương; Hà Mỹ, Linh; Lê Hồng, Phương; Nguyễn Thị Minh, Huyền
Contributing: elsewhere