Maldonado, Alfredo ORCID: 0000-0001-8426-5249, Han, Lifeng ORCID: 0000-0002-3221-2185, Moreau, Erwan ORCID: 0000-0001-7692-526X, Alsulaimani, Ashjan, Chowdhury, Koel, Vogel, Carl ORCID: 0000-0001-8928-8546 and Liu, Qun ORCID: 0000-0002-7000-1792 (2017) Detection of verbal multi-word expressions via conditional random fields with syntactic dependency features and semantic re-ranking. In: 13th Workshop on Multiword Expressions (MWE 2017), Apr 2017, Valencia, Spain.
Abstract
A description of a system for identifying Verbal Multi-Word Expressions (VMWEs) in running text is presented. The system mainly exploits universal syntactic dependency features through a Conditional Random Fields (CRF) sequence model. The system competed in the Closed Track at the PARSEME VMWE Shared Task 2017, ranking 2nd place in most languages on full VMWE-based evaluation and 1st in three languages on token-based evaluation. In addition, this paper presents an option to re-rank the 10 best CRF-predicted sequences via semantic vectors, boosting its scores above other systems in the competition. We also show that all systems in the competition would struggle to beat a simple lookup base-line system and argue for a more purpose-specific evaluation scheme.
Metadata
Item Type: | Conference or Workshop Item (Paper) |
---|---|
Event Type: | Workshop |
Refereed: | Yes |
Uncontrolled Keywords: | Multiword Expression; MWE Identification; Conditional Random Fields; Semantic Reranking |
Subjects: | Computer Science > Artificial intelligence Computer Science > Computational linguistics Computer Science > Machine learning |
DCU Faculties and Centres: | DCU Faculties and Schools > Faculty of Engineering and Computing > School of Computing Research Institutes and Centres > ADAPT |
Published in: | Markantonatou, Stella, Ramisch, Carlos, Savary, Agata and Vincze, Veronika, (eds.) Proceedings of the 13th Workshop on Multiword Expressions (MWE 2017). . Association for Computational Linguistics (ACL). |
Publisher: | Association for Computational Linguistics (ACL) |
Official URL: | http://dx.doi.org/10.18653/v1/W17-1715 |
Copyright Information: | © 2017 The Authors |
Use License: | This item is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 3.0 License. View License |
Funders: | Science Foundation Ireland (SFI) Research Centres Programme (Grant 13/RC/2106), European Regional Development Fund |
ID Code: | 24491 |
Deposited On: | 26 May 2020 12:04 by Lifeng Han . Last Modified 20 Sep 2021 13:09 |
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