Drem: The AFRL Submission to the WMT15 Tuning Task
Grant Erdmann, Jeremy Gwinnup · 2015
We define a new algorithm, named "Drem", for tuning the weighted linear model in a statistical machine translation system.Drem has two major innovations.First, it uses scaled derivative-free trust-region optimization rather than other methods' line search or (sub)gradient approximations.Second, it interpolates the decoder output, using information about which decodes produced which translations.