Hello, I am trying to tune an engine using mert. I run the mert-moses.pl script without filtering (i.e., --no-filter-phrase-table). At the end I use substitute-weights.perl to have a new ini file.
I noticed that in the new ini file I don't have the UnknownWordPenalty paramter. The original file looks like this (some lines omitted): ... # feature functions [feature] UnknownWordPenalty WordPenalty PhrasePenalty ... # dense weights for feature functions [weight] UnknownWordPenalty0= 1 WordPenalty0= -1 PhrasePenalty0= 0.2 TranslationModel0= 0.2 0.2 0.2 0.2 LexicalReordering0= 0.3 0.3 0.3 0.3 0.3 0.3 Distortion0= 0.3 LM0= 0.5 .... And the new ini file looks like this: ... # feature functions [feature] UnknownWordPenalty WordPenalty PhrasePenalty ... ... [weight] LexicalReordering0= 0.0762169 0.00608827 0.0268392 0.123948 0.0511544 0.127807 Distortion0= 0.0304069 LM0= 0.0635183 WordPenalty0= -0.268702 PhrasePenalty0= 0.0536959 TranslationModel0= 0.0525019 0.0459397 0.000797115 0.0723839 Does anyone have any idea why is the UnknownWordPenalty missing? Thank you for your support. Kind regards, Dimitar.
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