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Should Have, Would Have, Could Have: Investigating Verb Group Representations for Parsing with Universal Dependencies.
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Languages, Department of Linguistics and Philology. (Computational Linguistics)ORCID iD: 0000-0001-8844-2126
Uppsala University, Disciplinary Domain of Humanities and Social Sciences, Faculty of Languages, Department of Linguistics and Philology. (Computational Linguistics)
2016 (English)In: Proceedings of the Workshop on Multilingual and Crosslingual Methods in NLP, Stroudsburg: Association for Computational Linguistics (ACL) , 2016, p. 10-19Conference paper, Published paper (Refereed)
Abstract [en]

Treebanks have recently been released for a number of languages with the harmonized annotation created by the Universal Dependencies project. The representation of certain constructions in UD are known to be suboptimal for parsing and may be worth transforming for the purpose of parsing. In this paper, we focus on the representation of verb groups. Several studies have shown that parsing works better when auxiliaries are the head of auxiliary dependency relations which is not the case in UD. We therefore transformed verb groups in UD treebanks, parsed the test set and transformed it back, and contrary to expectations, observed significant decreases in accuracy. We provide suggestive evidence that improvements in previous studies were obtained because the transformation helps disambiguating POS tags of main verbs and auxiliaries. The question of why parsing accuracy decreases with this approach in the case of UD is left open.

Place, publisher, year, edition, pages
Stroudsburg: Association for Computational Linguistics (ACL) , 2016. p. 10-19
National Category
General Language Studies and Linguistics
Research subject
Computational Linguistics
Identifiers
URN: urn:nbn:se:uu:diva-310454ISBN: 978-1-941643-87-7 (print)OAI: oai:DiVA.org:uu-310454DiVA, id: diva2:1057080
Conference
NAACL HLT. San Diego, California, June 12 to June 17, 2016
Available from: 2016-12-16 Created: 2016-12-16 Last updated: 2018-01-13Bibliographically approved

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de Lhoneux, MiryamNivre, Joakim
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CiteExportLink to record
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Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
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  • asciidoc
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