Hi Jeremy It's been a long time since I looked at this, but I think these are the component scores in the linearised corpus bleu used in Lattice MBR (see Tromble et al (2008), section 5). They are used to rescore the nbest list, and must be implemented by replacing the original feature vectors.
So it looks like lattice MBR doesn't work with nbest lists, or at least doesn't give you what you need for tuning. Do you really want to tune with lattice MBR? It's going to be very slow, cheers - Barry On 06/05/15 20:49, Jeremy Gwinnup wrote: > Hi, > > I’ve been attempting to experiment with lattice MBR with various settings and > I see something weird happen to my nbest lists: > > 0 ||| the prime ministers of india and japan meet in tokyo ||| Distortion0= … > etc etc becomes > > 0 ||| the prime ministers of india and japan meet in tokyo ||| map: 0 w: 12 > 11.19 8.06 6.63 5.39 > > My feature weights get replaced by map and w feature with 5 weights > > I’m setting the following as moses.ini parameters: > lminimum-bayes-risk > lmbr-p > lmbr-r > mbr-scale > lmbr-pruning-factor > > Anything extra that I need to know as far as what map and w are, or how to > get my normal features back in the nbest list? > > Thanks! > -Jeremy > _______________________________________________ > 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
