Learning Outside the Box: Discourse-level Features Improve Metaphor Identification.


Type
Conference Object
Change log
Authors
Mu, Jesse 
Giannakoudaki, Eleni 
Shutova, Ekaterina 
Abstract

Most current approaches to metaphor identi-fication use restricted linguistic contexts, e.g.by considering only a verb’s arguments or the sentence containing a phrase.Inspired by pragmatic accounts of metaphor, we argue that broader discourse features are crucial for bet-ter metaphor identification. We train simple gradient boosting classifiers on representations of an utterance and its surrounding discourse learned with a variety of document embedding methods, obtaining near state-of-the-art results on the 2018 VU Amsterdam metaphor iden-tification task without the complex metaphor-specific features or deep neural architectures employed by other systems.A qualitative analysis further confirms the need for broader context in metaphor processing.

Description
Keywords
Journal Title
In Proceedings of the 17th Annual Conference of the North American Chapter of the Association for Computational Linguistics.
Conference Name
17th Annual Conference of the North American Chapter of the Association for Computational Linguistics.
Journal ISSN
Volume Title
Publisher
Sponsorship
Cambridge Assessment (unknown)