Developing a Rhetorical Structure Theory Treebank for Czech

Lucie Polakova, Jiří Mírovský, Šárka Zikánová, Eva Hajicova


Abstract
We introduce the first version of the Czech RST Discourse Treebank, a collection of Czech journalistic texts manually annotated using the Rhetorical Structure Theory (RST), a global coherence model proposed by Mann and Thompson (1988). Each document in the corpus is represented as a single tree-like structure, where discourse units are interconnected through hierarchical rhetorical relations and their relative importance for the main purpose of a text is modeled by the nuclearity principle. The treebank is freely available in the LINDAT/CLARIAH-CZ repository under the Creative Commons license; for some documents, it includes two gold annotations representing divergent yet relevant interpretations. The paper outlines the annotation process, provides corpus statistics and evaluation, and discusses the issue of consistency associated with the global level of textual interpretation. In general, good agreement on the structure and labeling could be achieved on the lowest, local tree level and on the identification of the most central (nuclear) elementary discourse units. Disagreements mostly concerned segmentation and, in the structure, differences in the stepwise process of linking the largest text blocks. The project contributes to the advancement of RST research and its application to real-world text analysis challenges.
Anthology ID:
2024.lrec-main.430
Volume:
Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024)
Month:
May
Year:
2024
Address:
Torino, Italia
Editors:
Nicoletta Calzolari, Min-Yen Kan, Veronique Hoste, Alessandro Lenci, Sakriani Sakti, Nianwen Xue
Venues:
LREC | COLING
SIG:
Publisher:
ELRA and ICCL
Note:
Pages:
4802–4810
Language:
URL:
https://aclanthology.org/2024.lrec-main.430
DOI:
Bibkey:
Cite (ACL):
Lucie Polakova, Jiří Mírovský, Šárka Zikánová, and Eva Hajicova. 2024. Developing a Rhetorical Structure Theory Treebank for Czech. In Proceedings of the 2024 Joint International Conference on Computational Linguistics, Language Resources and Evaluation (LREC-COLING 2024), pages 4802–4810, Torino, Italia. ELRA and ICCL.
Cite (Informal):
Developing a Rhetorical Structure Theory Treebank for Czech (Polakova et al., LREC-COLING 2024)
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PDF:
https://aclanthology.org/2024.lrec-main.430.pdf