Language packs are pre-built translation models with an included instance of the Joshua runtime environment. There are no dependencies, so installing a black-box machine translation system on your computer is as easy as downloading the link, opening up the tarball, and running the included shell script.

English–English (paraphrase)

The following models are English to English translation engines trained on the Paraphrase Database. The models are described in the following paper (please cite it if you use them):

  @InProceedings{napoles-callisonburch-post:2016:N16-3,
    author = {Napoles, Courtney and Callison-Burch, Chris and Post, Matt},
    title = {Sentential Paraphrasing as Black-Box Machine Translation},
    booktitle = {Proceedings of the 2016 Conference of the North American Chapter of the Association for Computational Linguistics: Demonstrations},
    month = {June},
    year = {2016},
    address = {San Diego, California},
    publisher = {Association for Computational Linguistics},
    pages = {62--66},
    url = {http://www.aclweb.org/anthology/N16-3013}
  }

PPDB contains many different types of rules: lexical, phrasal, and syntactic. In addition, confidence measures computed over the entries have been used to filter the dataset at different thresholds, so that you can use only the highest-confidence rules (S) or get all of them (XXXL).

Download

You can download PPDB Language Packs from the following links (which will be active by Tuesday, June 14, 2016).

• All rules: S – M – L – XL – XXL – XXXL
• Lexical rules: S – M – L – XL – XXL – XXXL
• Phrasal rules: S – M – L – XL – XXL – XXXL
• Syntactic rules: S – M – L – XL – XXL – XXXL