The lexicalised distortion model should be turned off, it's only
pertinent to phrase-based

Hieu
Sent while bumping into things

On 30 Dec 2012, at 01:19 AM, Ben Humphreys <[email protected]> wrote:

> Hello all,
>
> I'm new to Moses and I've been trying to set up a baseline 
> hierarchical/syntax Moses system.
> I got a regular system running using the "Baseline System" tutorial and now 
> I'm following the Syntax Tutorial 
> http://www.statmt.org/moses/?n=Moses.SyntaxTutorial
>
>
> The error I get is when I try to tune my system using MERT:
> Here's my tuning command:
>> $ /home/ben/moses/mosesdecoder/scripts/training/mert-moses.pl \
>> /data/ben/hiertest/yomiuri_tuning.ja /data/ben/hiertest/yomiuri_tuning.en \
>> /home/ben/moses/mosesdecoder/bin/moses /data/ben/hiertest/model/moses.ini \
>> --mertdir /home/ben/moses/mosesdecoder/bin \
>> --maximum-iterations=10
>
> The tail of the error log is:
>
>> exec: 
>> /mnt/home/ben/moses/mosesdecoder/scripts/training/filter-model-given-input.pl
>>  ./filtered /data/ben/hiertest/model/moses.ini 
>> /data/ben/hiertest/yomiuri_tuning.ja
>> Executing: 
>> /mnt/home/ben/moses/mosesdecoder/scripts/training/filter-model-given-input.pl
>>  ./filtered /data/ben/hiertest/model/moses.ini 
>> /data/ben/hiertest/yomiuri_tuning.ja > filterphrases.out 2> filterphrases.err
>> Asking moses for feature names and values from filtered/moses.ini
>> Executing: /home/ben/moses/mosesdecoder/bin/moses  -config 
>> filtered/moses.ini  -inputtype 0 -show-weights > ./features.list
>> Defined parameters (per moses.ini or switch):
>>        config: filtered/moses.ini
>>        cube-pruning-pop-limit: 1000
>>        distortion-file: 0-0 wbe-msd-bidirectional-fe-allff 6 
>> /mnt/home/ben/moses/mert-work/filtered/reordering-table.wbe-msd-bidirectional-fe
>>        input-factors: 0
>>        inputtype: 0
>>        lmodel-file: 8 0 5 /yew/ben/trans/nict.all.en.5.blm
>>        mapping: 0 T 0 1 T 1
>>        max-chart-span: 20 1000
>>        non-terminals: X
>>        search-algorithm: 3
>>        show-weights:
>>        ttable-file: 6 0 0 5 
>> /mnt/home/ben/moses/mert-work/filtered/phrase-table.0-0.1.1.gz 6 0 0 1 
>> /data/ben/hiertest/model/glue-grammar
>>        ttable-limit: 20
>>        weight-l: 0.5000
>>        weight-t: 0.20 0.20 0.20 0.20 0.20 1.0
>>        weight-w: -1
>> /home/ben/moses/mosesdecoder/bin
>> ScoreProducer: WordPenalty start: 0 end: 1
>> ScoreProducer: !UnknownWordPenalty start: 1 end: 2
>> Loading lexical distortion models...have 1 models
>> ERROR:Lexicalized distortion model: Not enough weights, add to [weight-d]
>> Exit code: 1
>> Failed to run moses with the config filtered/moses.ini at 
>> /home/ben/moses/mosesdecoder/scripts/training/mert-moses.pl line 1169.
>
>
>
> It says in the Syntax Tutorial that training a hierarchical model is just a 
> case of adding -hierarchical and a few other options to a normal Moses 
> training command.
>
> Here is my training command. Modified from my working non-hierarchical system 
> to add the one -hierarchical line:
>> $ /home/ben/moses/mosesdecoder/scripts/training/train-model.perl \
>> -root-dir /data/ben/hiertest \
>> -corpus /data/ben/hiertest/hiertest.corpus -f ja -e en \
>> -hierarchical -glue-grammar -max-phrase-length 5 \
>> -alignment grow-diag-final-and -reordering msd-bidirectional-fe \
>> -lm 0:5:/yew/ben/trans/nict.all.en.5.blm:8 \
>> -external-bin-dir=/home/ben/moses/mosesdecoder/bin/
>
>
> I can add the -d flag with a bunch of weights to make the error go away, but 
> that seems like a hack, and I don't know what weights to use anyway.
>
>
> Am I missing a step that sets up these weights in my moses.ini or something?
> I didn't notice or get any issues like this with the non-hierarchical system.
>
>
> Ben Humphreys
>
> PhD student
> Kurohashi-Kawahara Lab
> Kyoto University
>
>
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