Abstract
We explore whether it is possible to build lighter parsers, that are statistically equivalent to their corresponding standard version, for a wide set of languages showing different structures and morphologies. As testbed, we use the Universal Dependencies and transition-based dependency parsers trained on feed-forward networks. For these, most existing research assumes de facto standard embedded features and relies on pre-computation tricks to obtain speed-ups. We explore how these features and their size can be reduced and whether this translates into speed-ups with a negligible impact on accuracy. The experiments show that grand-daughter features can be removed for the majority of treebanks without a significant (negative or positive) LAS difference. They also show how the size of the embeddings can be notably reduced.- Anthology ID:
 - W18-6019
 - Volume:
 - Proceedings of the Second Workshop on Universal Dependencies (UDW 2018)
 - Month:
 - November
 - Year:
 - 2018
 - Address:
 - Brussels, Belgium
 - Venue:
 - UDW
 - SIG:
 - Publisher:
 - Association for Computational Linguistics
 - Note:
 - Pages:
 - 162–172
 - Language:
 - URL:
 - https://aclanthology.org/W18-6019
 - DOI:
 - 10.18653/v1/W18-6019
 - Cite (ACL):
 - David Vilares and Carlos Gómez-Rodríguez. 2018. Transition-based Parsing with Lighter Feed-Forward Networks. In Proceedings of the Second Workshop on Universal Dependencies (UDW 2018), pages 162–172, Brussels, Belgium. Association for Computational Linguistics.
 - Cite (Informal):
 - Transition-based Parsing with Lighter Feed-Forward Networks (Vilares & Gómez-Rodríguez, UDW 2018)
 - PDF:
 - https://preview.aclanthology.org/remove-xml-comments/W18-6019.pdf