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        <title>Syntactic Nuclei in Dependency Parsing – A Multilingual Exploration</title>
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    <abstract>Standard models for syntactic dependency parsing take words to be the elementary units that enter into dependency relations. In this paper, we investigate whether there are any benefits from enriching these models with the more abstract notion of nucleus proposed by Tesnière. We do this by showing how the concept of nucleus can be defined in the framework of Universal Dependencies and how we can use composition functions to make a transition-based dependency parser aware of this concept. Experiments on 12 languages show that nucleus composition gives small but significant improvements in parsing accuracy. Further analysis reveals that the improvement mainly concerns a small number of dependency relations, including nominal modifiers, relations of coordination, main predicates, and direct objects.</abstract>
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%0 Conference Proceedings
%T Syntactic Nuclei in Dependency Parsing – A Multilingual Exploration
%A Basirat, Ali
%A Nivre, Joakim
%Y Merlo, Paola
%Y Tiedemann, Jorg
%Y Tsarfaty, Reut
%S Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume
%D 2021
%8 April
%I Association for Computational Linguistics
%C Online
%F basirat-nivre-2021-syntactic
%X Standard models for syntactic dependency parsing take words to be the elementary units that enter into dependency relations. In this paper, we investigate whether there are any benefits from enriching these models with the more abstract notion of nucleus proposed by Tesnière. We do this by showing how the concept of nucleus can be defined in the framework of Universal Dependencies and how we can use composition functions to make a transition-based dependency parser aware of this concept. Experiments on 12 languages show that nucleus composition gives small but significant improvements in parsing accuracy. Further analysis reveals that the improvement mainly concerns a small number of dependency relations, including nominal modifiers, relations of coordination, main predicates, and direct objects.
%R 10.18653/v1/2021.eacl-main.117
%U https://aclanthology.org/2021.eacl-main.117
%U https://doi.org/10.18653/v1/2021.eacl-main.117
%P 1376-1387

Markdown (Informal)

[Syntactic Nuclei in Dependency Parsing – A Multilingual Exploration](https://aclanthology.org/2021.eacl-main.117) (Basirat & Nivre, EACL 2021)

• Syntactic Nuclei in Dependency Parsing – A Multilingual Exploration (Basirat & Nivre, EACL 2021)

ACL

• Ali Basirat and Joakim Nivre. 2021. Syntactic Nuclei in Dependency Parsing – A Multilingual Exploration. In Proceedings of the 16th Conference of the European Chapter of the Association for Computational Linguistics: Main Volume, pages 1376–1387, Online. Association for Computational Linguistics.