The LIGA (LIG/LIA) Machine Translation System for WMT 2011

We describe our system for the news commentary translation task of WMT 2011. The submitted run for the French-English direction is a combination of two MOSES-based systems developed at LIG and LIA laboratories. We report experiments to improve over the standard phrase-based model using statistical post-edition, information retrieval methods to subsample out-of-domain parallel corpora and Rover to combine n-best list of hypotheses output by different systems.