Joshua 3.0: Syntax-based Machine Translation with the Thrax Grammar Extractor
Jonathan R. Weese, Juri Ganitkevitch, Chris Callison-Burch, Matt Post, Adam Lopez · Edinburgh Research Explorer (University of Edinburgh) · 2011
We present progress on Joshua, an open-source decoder for hierarchical and syntax-based machine translation. The main focus is describing Thrax, a flexible, open source synchronous context-free grammar extractor. Thrax extracts both hierarchical (Chiang, 2007) and syntax-augmented machine translation (Zollmann and Venugopal, 2006) grammars. It is built on Apache Hadoop for efficient distributed performance, and can easily be extended with support for new grammars, feature functions, and output formats.