OCaml implementation for A* CCG parser in:
A* CCG Parsing with a Supertag and Dependency Factored Model.
- Python 3
- OCaml (>= 4.05.0)
- opam (opam-installer)
$ pip install chainer protobuf spacy
$ opam pin add depccg -k git https://github.com/masashi-y/depccg.ml.git
Usage: depccg_en [-help] [-input INPUT] [-model MODEL]
[-annotator ANNOTATOR] [-nbest NBEST] [-beta BETA]
[-format FORMAT] [-socket SOCKET] [-ncores NCORES]
[-verbose]
Arguments:
Options:
-i, -input INPUT : input file (txt file or seed file (.seeds) {none}
-m, -model MODEL : path to model directory {none}
-a, -annotator ANNOTATOR : assign POS, NER-tags and lemma using annotator [candc, spacy] {none}
-n, -nbest NBEST : output nbest parses {1}
-b, -beta BETA : beta value for pruning {1e-08}
-f, -format FORMAT : output format: [auto, deriv, html, ptb, prolog, htmls, conll, xml] {"auto"}
-S, -socket SOCKET : use socket to contact with tagger {none}
-c, -ncores NCORES : the number of cores to parallelize A* decoders {4}
-v, -verbose : show all messages {false}
-h, -help : show this help message and exit
$ echo "this is a test example ." | depccg_en -format deriv -annotator spacy
this is a test example .
NP (S[dcl]\NP)/NP NP[nb]/N N/N N .
--------------->
N
------------------------->
NP
----------------------------------------->
S[dcl]\NP
-----------------------------------------------<
S[dcl]
--------------------------------------------------<rp>
S[dcl]
| Parser | labeled F1 | unlabeled F1 |
|---|---|---|
| depccg (paper) | 88.8% | 94.0% |
| depccg.ml | 88.9% | 94.1% |
If you make use of this software, please cite the following:
@inproceedings{yoshikawa:2017acl,
author={Yoshikawa, Masashi and Noji, Hiroshi and Matsumoto, Yuji},
title={A* CCG Parsing with a Supertag and Dependency Factored Model},
booktitle={Proc. ACL},
year=2017,
}
MIT Licence
For questions and usage issues, please contact yoshikawa.masashi.yh8@is.naist.jp .