Abstract Meaning Representation (AMR) is a semantic formalism for which a grow- ing set of annotated examples is avail- able. We introduce the first approach to parse sentences into this representa- tion, providing a strong baseline for fu- ture improvement. The method is based on a novel algorithm for finding a maxi- mum spanning, connected subgraph, em- bedded within a Lagrangian relaxation of an optimization problem that imposes lin- guistically inspired constraints. Our ap- proach is described in the general frame- work of structured prediction, allowing fu- ture incorporation of additional features and constraints, and may extend to other formalisms as well. Our open-source sys- tem, JAMR, is available at: http://github.com/jflanigan/jamr
A Discriminative Graph-Based Parser for the Abstract Meaning Representation
Jeffrey Flanigan,Sam Thomson,J. Carbonell,Chris Dyer,Noah A. Smith
Published 2014 in Annual Meeting of the Association for Computational Linguistics
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- Publication year
2014
- Venue
Annual Meeting of the Association for Computational Linguistics
- Publication date
2014-06-01
- Fields of study
Computer Science
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