Hi Marcin I had some fun with --activate-features in the past - I think the syntax was rather strange. If it is not working now, it may have got dropped by the recent refactoring
My advice would be to use kbmira (or pro), since they are regularised they don't go crazy when there is an uninformative feature. That way, you don't have to fiddle with feature activation, cheers - Barry On 10/02/14 18:01, Marcin Junczys-Dowmunt wrote: > Hi, > it seems --activate-features=STRING is not working in mert-moses.perl. > The script prints a message that the ignored features are not being > used, but then optimizes them anyway. I can see that the "enabled" > information in the feature data structure is not being used anywhere in > the script once it has been set (apart from printing the message). > > This can cause an interesting catastrophe when, for instance, distortion > is disabled by setting the limit to 1: > MERT assigns a weight of 1 to distortion (but the feature itself is > always 0) and 0 weights to all other features, the final score is then > equal to 0 for all sentences and poor moses goes crazy generating lots > of garbage which in turn takes ages to score only to finish with bad > weights. Really ugly, took me a while to find the cause :) > > BTW. In my opinon a --deactive-features might be more useful. I would > add/correct it myself, but currently I am getting lost in the code that > is printing the config files. Someone more acquainted with that code? > Best, > Marcin > _______________________________________________ > Moses-support mailing list > [email protected] > http://mailman.mit.edu/mailman/listinfo/moses-support > _______________________________________________ Moses-support mailing list [email protected] http://mailman.mit.edu/mailman/listinfo/moses-support
