On 10/12/14 08:11, amir haghighi wrote:
Hi everyone
I'm implementing a feature function in moses-chart. I need the source
words string and also their indexes in the source sentence. I've
written a function that gets the source words but I don't know how
extract word string from a word.
could anyone guide me how to do that? as I know, each word is
implemented as an array of factors, which of them is its string?
I have also some questions about the states in the stateful features,
what kind of variables should be stored in each state? only those ones
that should be used in the compare function? or any variable from the
previous hypothesis that we use in our feature?
You can store anything in the state information that will help you to
calculate function
FFState::Compare(other)
This is the only function you need to implement. The example
SkeletonStatefulFF
class compares the length of the target side of the translation rule
from 2 hypotheses, therefore, it the state only need to store the length
of the target string, not the entire string.
It 2 states are the same Compare() should return 0. If 2 states are
different, then it should return -1 or +1. you MUST make sure if, ie.
if a > b and b > c
then a > c
and
if a > b
then b < a
Thanks in advance!
Cheers
Amir
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