Tolosa Treebank

Tolosa Treebank for Occitan

Tolosa Treebank is the first dependency treebank for Occitan, developed as part of the EFA 227/16 LINGUATEC Project, financed by the POCTEFA Interreg European funds.

The current version of the treebank contains 25K tokens annotated for PoS tags, lemmas and syntactic dependencies. Linguistic annotation follows Universal Dependencies guidelines (https://universaldependencies.org/#language-u). The corpus files are stored in the ConLL-U format. Each sentence is preceded by a sentence ID and the original, non-tokenized text of the sentence. The annotation is provided in a column-based format defined as follows:

1. ID: Word index, integer starting at 1 for each new sentence; may be a range for multiword tokens.
2. FORM: Word form or punctuation symbol.
3. LEMMA: Lemma or stem of word form.
4. UPOS: Universal part-of-speech tag.
5. XPOS: Language-specific part-of-speech tag; underscore if not available.
6. FEATS: List of morphological features from the universal feature inventory or from a defined language-specific extension; underscore if not available.
7. HEAD: Head of the current word, which is either a value of ID or zero (0).
8. DEPREL: Universal dependency relation to the HEAD
9. DEPS: Enhanced dependency graph in the form of a list of head-deprel pairs.
10. MISC: Any other annotation.

The corpus is built out of data from four major Occitan dialects: Gascon, Lengadocian, Lemosin and Provençau. The corpus content is stratified by dialect. File naming conventions are indicated in the readme file.

AUTHORS: Aleksandra Miletic, Myriam Bras, Marianne Vergez Couret, Jean Sibille, Louise Esher, Clamença Poujade

LICENSE: The corpus is distributed under the Creative Commons BY-NC-SA 4.0 license (https://creativecommons.org/licenses/by-nc-sa/4.0/deed.en).

REFERENCING: If you use this corpus in your work, please cite the following paper:
Aleksandra Miletic, Myriam Bras, Marianne Vergez-Couret, Louise Esher, Clamença Poujade, and Jean Sibille. 2020. A Four-Dialect Treebank for Occitan: Building Process and Parsing Experiments. In Proceedings of the 7th Workshop on NLP for Similar Languages, Varieties and Dialects, pages 140–149, Barcelona, Spain (Online). International Committee on Computational Linguistics (ICCL).