Hi, the relationship between the Xs is encoded as word alignments. In your example that is "1-0 3-2".
The reorderdering model used in phrase-based models cannot be used for hierarchical models. -phi On Wed, Feb 24, 2010 at 2:45 PM, Jie Jiang <[email protected]> wrote: > Hi Philipp: > > Thanks a lot! > > So what I'm wondering is that: in Chiang's paper, his rules contains X1 X2 > on both source and target side to represent potential reordering, however, > in moses-chart, by looking at the phrase-table extracted: > > [X] [X] ||| " [X] " [X] " ||| [X] “ [X] ” 使 ||| 1-0 3-2 ||| 0.298507 > 0.00219001 0.026435 0.000359774 2.718 ||| 0.124074 1.40106 > > there is no X1 X2 stuffs here, does that mean any combination of reorder of > the non-terminals are supposed to be accepted in this rules? > And additional reordering scores could be calculated from another > reordering-table that is generated in the training phase? > > Best regards! > > Jie Jiang > CNGL, School of Computing, > Dublin City University, > Glasnevin, Dublin 9. > Tel: +353 (0)1 700 6724 > > > > > 2010/2/24 Philipp Koehn <[email protected]> >> >> Hi, >> >> the best reference would be David Chiang's Computational Linguistics >> article on hierarchical phrase-based models. >> >> -phi >> >> On Wed, Feb 24, 2010 at 11:21 AM, Jie Jiang <[email protected]> >> wrote: >> > Dear all: >> > >> > Could you tell me where can I find the details of moses-chart >> > reordering? >> > It seems that the reordering table is quite different from that of >> > moses. >> > Is there any papers or documents for it? >> > Thank you very much! >> > >> > Best regards! >> > >> > Jie Jiang >> > CNGL, School of Computing, >> > Dublin City University, >> > Glasnevin, Dublin 9. >> > Tel: +353 (0)1 700 6724 >> > >> > >> > >> > _______________________________________________ >> > 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
