Hi All, I am trying to implement forced decoding procedure of (Weubker et al 2010) using Moses constrained decoding functionality for a Arabic-English bitext of ~1 million sentence. For start, I am using Moses to decode a sample of 20000 sentences from this bitext. Though I have tried to relax all the parameters to as maximum as possible, I haven’t been able to obtain a coverage of more than 50%. I am describing below models and the parameters I have used and their maximum/minimum value :
1. Phrase table built from the same bitext using moses training (grow-diag-final-and algorithm) (~60 million phrase pairs) 2. Distortion penalty, phrase penalty 3. No LM or reordering models. Infinite distortion limit 4. ttable limit : 1000000 5. Stack size (maximum : 3000) 6. Beam size (10^(-10) to 10^(-30) (min)) 7. Stack diversity : 0-1 Some of them I have used as discussed in this report ( http://www-labs.iro.umontreal.ca/~foster/papers/forcedecode-techrep12.pdf) Can anyone explain if I am missing any other parameters set to default in moses that I should relax to increase my coverage ? Or what are the default values of all possible parameters in moses ? Thanks and Regards Praveen
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