DRS at MRP 2020: Dressing up Discourse Representation Structures as Graphs

Lasha Abzianidze, Johan Bos, Stephan Oepen


Abstract
Discourse Representation Theory (DRT) is a formal account for representing the meaning of natural language discourse. Meaning in DRT is modeled via a Discourse Representation Structure (DRS), a meaning representation with a model-theoretic interpretation, which is usually depicted as nested boxes. In contrast, a directed labeled graph is a common data structure used to encode semantics of natural language texts. The paper describes the procedure of dressing up DRSs as directed labeled graphs to include DRT as a new framework in the 2020 shared task on Cross-Framework and Cross-Lingual Meaning Representation Parsing. Since one of the goals of the shared task is to encourage unified models for several semantic graph frameworks, the conversion procedure was biased towards making the DRT graph framework somewhat similar to other graph-based meaning representation frameworks.
Anthology ID:
2020.conll-shared.2
Volume:
Proceedings of the CoNLL 2020 Shared Task: Cross-Framework Meaning Representation Parsing
Month:
November
Year:
2020
Address:
Online
Venue:
CoNLL
SIG:
SIGNLL
Publisher:
Association for Computational Linguistics
Note:
Pages:
23–32
Language:
URL:
https://aclanthology.org/2020.conll-shared.2
DOI:
10.18653/v1/2020.conll-shared.2
Bibkey:
Cite (ACL):
Lasha Abzianidze, Johan Bos, and Stephan Oepen. 2020. DRS at MRP 2020: Dressing up Discourse Representation Structures as Graphs. In Proceedings of the CoNLL 2020 Shared Task: Cross-Framework Meaning Representation Parsing, pages 23–32, Online. Association for Computational Linguistics.
Cite (Informal):
DRS at MRP 2020: Dressing up Discourse Representation Structures as Graphs (Abzianidze et al., CoNLL 2020)
Copy Citation:
PDF:
https://aclanthology.org/2020.conll-shared.2.pdf
Code
 kovvalsky/DRS2Graph