Official webpage: https://www.korpuslab.uni-hamburg.de/en/tlt2025.html

Joint paper submission portal: https://openreview.net/group?id=SyntaxFest/2025

Call for Papers

We are excited to announce the 23rd International Workshop on Treebanks and Linguistic Theories (TLT 2025), which will bring together developers and users of linguistically annotated natural language corpora. The workshop is part of SyntaxFest 2025 and will be hosted by University of Ljubljana in Slovenia on August 26-29, 2025.

Link to SyntaxFest 2025: https://syntaxfest.github.io/

TLT addresses all aspects of treebank design, development, and use. As ‘treebanks’ we consider any pairing of natural language data (spoken, signed, or written) with annotations of linguistic structure at various levels of analysis, including, e.g., morpho-phonology, syntax, semantics, and discourse. Annotations can take any form (including trees or general graphs), but they should be encoded in a way that enables computational processing. Reflections on the design of linguistic annotations, methodology studies, resource announcements or updates, annotation or conversion tool development, or reports on treebank usage including probing the leakage of treebanks into large language models are but some examples of the types of papers we anticipate for TLT.

Papers should describe original work; they should emphasize completed work rather than intended work, and should indicate clearly the state of completion of the reported results. Submissions will be judged on correctness, originality, technical strength, significance and relevance to the conference, and interest to the attendees.

We invite paper submissions in two distinct tracks:

• regular papers on substantial and original research, including empirical evaluation results, where appropriate;
• short papers on smaller, focused contributions, work in progress, negative results, surveys, or opinion pieces.

Submissions (in both tracks) may either be archival—in case of unpublished work—or non-archival, based on the wish of the authors. All archival papers accepted for presentation at the workshop will be included in the TLT 2025 proceedings volume, which will be part of the ACL Anthology. Non-archival papers must have been published or accepted for publication at another CL conference.

Long papers may consist of up to 8 pages of content (excluding references and appendices). Short papers may consist of up to 4 pages of content (excluding references and appendices). Accepted papers will be given an additional page to address reviewer comments.

All submissions should follow the two-column format and the ACL style guidelines. We strongly recommend the use of the LaTeX style files, OpenDocument, or Microsoft Word templates created for ACL: https://github.com/acl-org/acl-style-files

Submissions will be reviewed double-blind, and all full and short papers must be anonymous, i.e. not reveal author(s) on the title page or through self-references. So e.g., “We previously showed (Smith, 2020) …”, should be avoided. Instead, use citations such as “Smith (2020) previously showed …. Papers must be submitted digitally, in PDF, and uploaded through the on-line conference system (link forthcoming).

Submissions that violate these requirements will be rejected without review.

• First call for papers: December 2024
• Paper submission deadline: 15 April 2025
• Notification of acceptance: 2 June 2025
• Early bird registration: June 2025
• Conference dates: 26 to 29 August 2025

Workshop chairs

• Heike Zinsmeister (University of Hamburg)
• Sarah Jablotschkin (University of Hamburg)
• Sandra Kübler (Indiana University)