文章基本信息

标题：Expressive Power of Abstract Meaning Representations
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作者：Johan Bos
期刊名称：Computational Linguistics
印刷版ISSN：0891-2017
电子版ISSN：1530-9312
出版年度：2016
卷号：42
期号：3
页码：527-535
DOI：10.1162/COLI_a_00257
语种：English
出版社：MIT Press
摘要：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.