Hi, all.
The documentation is particularly scarce on factored lexicalized
reordering and the source code of train-factored-phrase-model.perl is
not obvious in this respect either.
What are all configuration options with respect to factored lexicalized
reordering? How do --reordering and --reordering-factors interfere? E.g.
--reordering-factors allows several pairs of factors: 0-0+1-1 or
0-0+0,1-0,1 and --reordering seems to allow several reordering types,
e.g. msd-bidirectional-fe,monotonicity-fe.
Should not --reordering be required to specify exactly the same number
of reordering types as there are factor pairs in --reordering-factors?
(A bin confusing might seem the fact that in --reordering, the main
delimiter is s comma, while in --reordering-factors, the main delimiter
is s plus.)
Or put differently, what does moses expect and allow in the
[distorition-file] section?
A simple example is:
[distortion-file]
0-0 msd-bidirectional-fe 6 filename.gz
May I add arbitrary number of lines, e.g.:
1-1 msd-bidirectional-fe 6 filename2.gz
# same reord. type, different factors
0,1-1 msd-bidirectional-fe 6 filename2.gz
# same reord. type, based on
I assume the meaning of each such line is to include one additional
lexicalized reordering model based on the specified factors, of the
given reordering type and providing N (6 in our case) additional scaling
weights.
Can one *disable* plain distance-based reordering? (Not that I would
want to do that, I just want to know the configuration options. Syntax
of moses.ini does not seem to think about this option.)
Thanks, Ondrej.
--
Ondrej Bojar (mailto:[EMAIL PROTECTED] / [EMAIL PROTECTED])
http://www.cuni.cz/~obo
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