Expressive Power of Abstract Meaning Representations | Zendy

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Expressive Power of Abstract Meaning Representations

Author(s) -

Johan Bos

Publication year - 2016

Publication title -

computational linguistics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.314

H-Index - 98

eISSN - 1530-9312

pISSN - 0891-2017

DOI - 10.1162/coli_a_00257

Subject(s) - syntax , negation , quantifier (linguistics) , computer science , decidability , meaning (existential) , translation (biology) , sentence , fragment (logic) , simple (philosophy) , scope (computer science) , expressive power , natural language processing , artificial intelligence , programming language , theoretical computer science , psychology , philosophy , biochemistry , chemistry , epistemology , messenger rna , gene , psychotherapist

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.

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