Abstract Meaning Representation parser

Description

Abstract Meaning Representation (AMR; link) is a semantic representation language. An AMR is a single-rooted, directed graph representing the meaning of a sentence.

This is a demo for AMREager, an AMR parser that works by processing a given sentence left-to-right, similarly to transition-based dependency parsers.

AMREager was developed by Marco Damonte at the Cohort NLP/ML research group (in collaboration with Giorgio Satta).

We thank our funders: Bloomberg and EU H2020 (grant agreement: 688139, SUMMA).

Graph visualization for this demo is done using AMRICA.

AMREager’s source code can be found on github.

Papers

The parser is described in detail in the paper that can be downloaded here.

@inproceedings{damonte-17,
   title={An Incremental Parser for Abstract Meaning Representation},
   author={Marco Damonte and Shay B. Cohen and Giorgio Satta},
   booktitle={Proceedings of {EACL}},
   year={2017}
}

The multilingual parser is described in detail in the following paper that can be found here.

@techreport{damonte-17b,
    author = "Marco Damonte and Shay B. Cohen",
    title = "Cross-lingual Abstract Meaning Representation Parsing",
    year = "2017",
    eprint = "arXiv:1704.04539",
    url = "https://arxiv.org/abs/1704.04539"
}

Demo

Language: (non-English parsers are still experimental)

Sentence:








Some notes

Our parser also gives alignments in a comment below the sentence. Alignments should be interpreted as follows. For example,

1-2|0.0+0.1

means that the second token (x-y refers to the tokens that come between words x and y exclusive of y) aligned with the first child of the root node (0.0) and the second child of the root node (0.1). The address 0.x.y… refers to the path from the root to its xth child, then yth child, until the end of the path.

A full alignment would be an output such as

# ::alignments 1-2|0.0+0.1.1 3-4|0 5-6|0.1 6-7|0.1.0 8-9|0.1.0.0

appearing after the sentence line.