Well, at least 'max_unknowns' seems to not work properly. I've tried
setting it to quite large values (and also -1) and I always obtain the same
result as using zero. E.g. using max_unknowns=-1:
Translating: what will they do ? CSSD lacks knowledge of both Voldemort and
candy bars in Prague
Line 0: Initialize search took 0.001 seconds total
Total translation options: 346
Total translation options pruned: 0
Line 0: Collecting options took 0.001 seconds at moses/Manager.cpp:117
Stack sizes: 1, 12, 5, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 6, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 1, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 0, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Stack sizes: 1, 12, 24, 22, 12, 5, 3, 4, 3, 2, 0, 0, 0, 0, 0, 0, 0
Line 0: Search took 0.074 seconds
total hypotheses considered = 8606
number popped from cube = 0
number not built = 0
number discarded early = 0
number discarded = 8516
number recombined = 2
number pruned = 0
time to collect opts 0.001 (0%)
create hyps 0.009 (11%)
estimate score 0.007 (9%)
calc lm 0.000 (0%)
other hyp score 0.018 (24%)
set up cubes 0.000 (0%)
manage cubes 0.000 (0%)
manage stacks 0.008 (11%)
other 0.032 (41%)
total source words = 16
words deleted = 0 ()
words inserted = 0 ()
NO BEST TRANSLATION
2015-01-20 14:27 GMT+00:00 Hieu Hoang <[email protected]>:
> max-unknowns = like the edit distance. The maximum number of non-matching
> words
>
> negate = instead of allowing only translations that match the reference,
> allow only translations that do NOT match
>
> soft = don't throw away non-matching translations, just penalise it.
>
> I was basically messing around, I didn't check the results very carefully.
> there may be bugs.
>
>
> On 20 January 2015 at 14:10, Jesús González Rubio <[email protected]
> > wrote:
>
>> Hi all,
>>
>> I have some questions about the constrained decoding feature implemented
>> in moses, (ConstrainedDecoding).
>>
>> Which is the meaning of the 'max-unknowns' parameter?
>>
>> I understand 'max-unknowns' as something like the maximum edit distance
>> allowed between the final translation and the reference, i.e the maximum
>> number of words in the final translation that are allowed to be different
>> to the reference. Is this interpretation correct?
>>
>> Also, what is the interpretation of the 'negate' and 'soft' parameters?
>>
>> Thanks in advance.
>>
>> Cheers.
>> --
>> Jesús
>>
>> _______________________________________________
>> Moses-support mailing list
>> [email protected]
>> http://mailman.mit.edu/mailman/listinfo/moses-support
>>
>>
>
>
> --
> Hieu Hoang
> Research Associate
> University of Edinburgh
> http://www.hoang.co.uk/hieu
>
>
--
Jesús
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