Conjunct Lengths in English, Dependency Length Minimization, and Dependency Structure of Coordination

Adam Przepiórkowski, Michał Woźniak


Abstract
This paper confirms that, in English binary coordinations, left conjuncts tend to be shorter than right conjuncts, regardless of the position of the governor of the coordination. We demonstrate that this tendency becomes stronger when length differences are greater, but only when the governor is on the left or absent, not when it is on the right. We explain this effect via Dependency Length Minimization and we show that this explanation provides support for symmetrical dependency structures of coordination (where coordination is multi-headed by all conjuncts, as in Word Grammar or in enhanced Universal Dependencies, or where it single-headed by the conjunction, as in the Prague Dependency Treebank), as opposed to asymmetrical structures (where coordination is headed by the first conjunct, as in the Meaning–Text Theory or in basic Universal Dependencies).
Anthology ID:
2023.acl-long.864
Volume:
Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
July
Year:
2023
Address:
Toronto, Canada
Editors:
Anna Rogers, Jordan Boyd-Graber, Naoaki Okazaki
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
15494–15512
Language:
URL:
https://aclanthology.org/2023.acl-long.864
DOI:
10.18653/v1/2023.acl-long.864
Bibkey:
Cite (ACL):
Adam Przepiórkowski and Michał Woźniak. 2023. Conjunct Lengths in English, Dependency Length Minimization, and Dependency Structure of Coordination. In Proceedings of the 61st Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 15494–15512, Toronto, Canada. Association for Computational Linguistics.
Cite (Informal):
Conjunct Lengths in English, Dependency Length Minimization, and Dependency Structure of Coordination (Przepiórkowski & Woźniak, ACL 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.acl-long.864.pdf
Video:
 https://aclanthology.org/2023.acl-long.864.mp4