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- Title
Expressive Power of Abstract Meaning Representations.
- Authors
Bos, Johan
- Abstract
The syntax of abstract meaning representations (AMRs) can be defined recursively, and a systematic translation to first-order logic (FOL) can be specified, including a proper treatment of negation. AMRs without recurrent variables are in the decidable two-variable fragment of FOL. The current definition of AMRs has limited expressive power for universal quantification (up to one universal quantifier per sentence). A simple extension of the AMR syntax and translation to FOL provides the means to represent projection and scope phenomena.
- Subjects
SYNTAX (Grammar); SEMANTICS; FIRST-order logic; POLARITY (Linguistics); NEGATION (Logic); SCOPE (Linguistics)
- Publication
Computational Linguistics, 2016, Vol 42, Issue 3, p527
- ISSN
0891-2017
- Publication type
Article
- DOI
10.1162/COLI_a_00257