Saturday, November 19, 2011

Free/open-source machine translation software

Here’s a non-exhaustive list of links to existing free/open-source machine translation systems, which I will try to complete as I find about them. To the best of my knowledge, software listed here has:
Rule-based systems
  • Apertium, a free/open-source rule-based machine translation platform.
  • Matxin, a free/open-source rule-based machine translation system for Basque.
  • OpenLogos, a free/open-source version of the historical Logos machine translation system.
  • Anusaaraka, English-Hindi machine translation system.
Statistical machine translation systems


  • Moses, a statistical machine translation system.
  • Marie, an n-gram-based statistical machine translation decoder.
  • Joshua, an open source decoder for statistical translation models based on synchronous context free grammars
  • Phramer, an open-source statistical phrase-based machine translation decoder
  • GREAT, a decoder based on stochastic finite-state transducers, which includes a training toolkit.

Training translation models

  • Giza++ is a tool to train translation models for statistical machine translation (see also the related mkcls tool to train word classes)
  • Thot is a toolkit to train phrase-based models for statistical machine translation. Read more. Source: DCU School of Computing