Abstract
Verbal multiword expressions (VMWEs) such as to make ends meet require special attention in NLP and linguistic research, and annotated corpora are valuable resources for studying them. Corpora annotated with VMWEs in several languages, including Brazilian Portuguese, were made freely available in the PARSEME shared task. The goal of this paper is to describe and analyze this corpus in terms of the characteristics of annotated VMWEs in Brazilian Portuguese. First, we summarize and exemplify the criteria used to annotate VMWEs. Then, we analyze their frequency, average length, discontinuities and variability. We further discuss challenging constructions and borderline cases. We believe that this analysis can improve the annotated corpus and its results can be used to develop systems for automatic VMWE identification.
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Notes
- 1.
Editions 1.0 (2017) and 1.1 (2018): http://multiword.sourceforge.net/sharedtask2018.
- 2.
- 3.
Boldface indicates lexicalized components for all examples throughout this paper.
- 4.
A flexibility test verifies to what extent a change usually allowed by a language’s grammar also applies to the candidate to annotate.
- 5.
A word that does not co-occur with any other word outside the VMWE.
- 6.
- 7.
In number of intervening tokens.
- 8.
The normalized form of a VMWE is its sequence of lemmatized lexicalized components in lexicographic order, whereas its surface form is the textual sequence [8].
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Acknowledgement
We would like to thank Helena Caseli for her participation as an annotator. We would also like to thank the PARSEME shared task organizers, especially Agata Savary and Veronika Vincze. This work was supported by the IC1207 PARSEME COST action (http://www.parseme.eu) and by the PARSEME-FR project (ANR-14-CERA-0001). (http://parsemefr.lif.univ-mrs.fr/)
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Ramisch, C., Ramisch, R., Zilio, L., Villavicencio, A., Cordeiro, S. (2018). A Corpus Study of Verbal Multiword Expressions in Brazilian Portuguese. In: Villavicencio, A., et al. Computational Processing of the Portuguese Language. PROPOR 2018. Lecture Notes in Computer Science(), vol 11122. Springer, Cham. https://doi.org/10.1007/978-3-319-99722-3_3
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