Hi Vito, tuneable=false should work.
However, in case you use the EMS to run experiments, there's a pitfall: If a filtered phrase table for tuning exists from a previous experimental run, then the EMS will typically apply the filter and replace the line for the phrase table feature function in your moses.ini by the respective line from the filtered directory. In case the previous run didn't have tuneable=false, this will be dropped. You can easily check this and manually edit the filtered moses.ini in the tuning directory. A filtered moses.ini can be specified in the EMS config: [TUNING] filtered-config = $working-dir/tuning/moses.filtered.ini.10 tuneable=false will keep all the score components of a feature function at their initial values. If you need something similar for individual components only, please have a look at this: https://www.mail-archive.com/[email protected]/msg11653.html Cheers, Matthias On Wed, 2015-05-20 at 10:12 +0200, Vito Mandorino wrote: > Dear all, > > is it possible when tuning to tell Moses to constrain the value of a subset > of the features to some fixed, given-in-advance values ? > I would like to do that because I'm dealing with a very small tuning set, > and I think that reducing the number of tuneable features will prevent > overfitting. > I have tried two approaches so far but results were not as expected (or > desired): > - add tuneable=false to the concerned features in the moses.ini > - add > --decoder-flags "-weight-overwrite 'LM0= 0.086 WordPenalty0= -0.021 > PhrasePenalty0= 0.022 Distortion0= 0.3 TranslationModel1= 0.04 -0.01 0.25 > 0.19'" > to the mert-moses.pl command. > > > Best regards, > > Vito Mandorino > > _______________________________________________ > Moses-support mailing list > [email protected] > http://mailman.mit.edu/mailman/listinfo/moses-support -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336. _______________________________________________ Moses-support mailing list [email protected] http://mailman.mit.edu/mailman/listinfo/moses-support
