Universal Discourse Representation Structure Parsing

AbstractWe consider the task of crosslingual semantic parsing in the style of Discourse Representation Theory (DRT) where knowledge from annotated corpora in a resource-rich language is transferred via bitext to guide learning in other languages. We introduce 𝕌niversal Discourse Repr...

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Main Authors: Jiangming Liu, Shay B. Cohen, Mirella Lapata, Johan Bos
Format: Article
Language:English
Published: The MIT Press 2021-07-01
Series:Computational Linguistics
Online Access:https://direct.mit.edu/coli/article/47/2/445/98515/Universal-Discourse-Representation-Structure
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author Jiangming Liu
Shay B. Cohen
Mirella Lapata
Johan Bos
author_facet Jiangming Liu
Shay B. Cohen
Mirella Lapata
Johan Bos
author_sort Jiangming Liu
collection DOAJ
description AbstractWe consider the task of crosslingual semantic parsing in the style of Discourse Representation Theory (DRT) where knowledge from annotated corpora in a resource-rich language is transferred via bitext to guide learning in other languages. We introduce 𝕌niversal Discourse Representation Theory (𝕌DRT), a variant of DRT that explicitly anchors semantic representations to tokens in the linguistic input. We develop a semantic parsing framework based on the Transformer architecture and utilize it to obtain semantic resources in multiple languages following two learning schemes. The many-to-one approach translates non-English text to English, and then runs a relatively accurate English parser on the translated text, while the one-to-many approach translates gold standard English to non-English text and trains multiple parsers (one per language) on the translations. Experimental results on the Parallel Meaning Bank show that our proposal outperforms strong baselines by a wide margin and can be used to construct (silver-standard) meaning banks for 99 languages.
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spelling doaj.art-55812fe849884f5ea2eab9311a7afca42022-12-22T03:23:24ZengThe MIT PressComputational Linguistics0891-20171530-93122021-07-0147244547610.1162/coli_a_00406Universal Discourse Representation Structure ParsingJiangming Liu0Shay B. Cohen1Mirella Lapata2Johan Bos3School of Informatics, University of Edinburgh. jiangming.liu@ed.ac.ukSchool of Informatics, University of Edinburgh. scohen@inf.ed.ac.ukSchool of Informatics, University of Edinburgh. mlap@inf.ed.ac.ukCenter for Language and Cognition, University of Groningen. johan.bos@rug.nl AbstractWe consider the task of crosslingual semantic parsing in the style of Discourse Representation Theory (DRT) where knowledge from annotated corpora in a resource-rich language is transferred via bitext to guide learning in other languages. We introduce 𝕌niversal Discourse Representation Theory (𝕌DRT), a variant of DRT that explicitly anchors semantic representations to tokens in the linguistic input. We develop a semantic parsing framework based on the Transformer architecture and utilize it to obtain semantic resources in multiple languages following two learning schemes. The many-to-one approach translates non-English text to English, and then runs a relatively accurate English parser on the translated text, while the one-to-many approach translates gold standard English to non-English text and trains multiple parsers (one per language) on the translations. Experimental results on the Parallel Meaning Bank show that our proposal outperforms strong baselines by a wide margin and can be used to construct (silver-standard) meaning banks for 99 languages.https://direct.mit.edu/coli/article/47/2/445/98515/Universal-Discourse-Representation-Structure
spellingShingle Jiangming Liu
Shay B. Cohen
Mirella Lapata
Johan Bos
Universal Discourse Representation Structure Parsing
Computational Linguistics
title Universal Discourse Representation Structure Parsing
title_full Universal Discourse Representation Structure Parsing
title_fullStr Universal Discourse Representation Structure Parsing
title_full_unstemmed Universal Discourse Representation Structure Parsing
title_short Universal Discourse Representation Structure Parsing
title_sort universal discourse representation structure parsing
url https://direct.mit.edu/coli/article/47/2/445/98515/Universal-Discourse-Representation-Structure
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