Moses-support Digest, Vol 114, Issue 3

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Today's Topics:

1. Re: Maximum Phrase Table length (Vincent Nguyen)


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Message: 1
Date: Fri, 1 Apr 2016 17:09:18 +0200
From: Vincent Nguyen <vnguyen@neuf.fr>
Subject: Re: [Moses-support] Maximum Phrase Table length
To: Alexandru Ceausu <alceausu@gmail.com>
Cc: moses-support <moses-support@mit.edu>
Message-ID: <56FE8F1E.5000300@neuf.fr>
Content-Type: text/plain; charset="utf-8"

Hi Alex,
I was not talking about the max phrase length of decoding but the max
phrase of training.
it's ok, I got my answer in Phil's paper.
As a matter of fact, in EMS the default is 5 and not 7.
Cheers.

Le 01/04/2016 10:32, Alexandru Ceausu a ?crit :
> Hi Vincent,
>
> It is a runtime parameter. It does not necessary match the max phrase
> of training.
> It also affects how xml-input is handled. If you are using translation
> constrains, this parameter has to be set to the maximum number of
> covered source words.
> I think that the default is set at 20.
>
> Best regards,
> Al. Ceausu
>
> On Thu, Mar 31, 2016 at 2:58 PM, Vincent Nguyen <vnguyen@neuf.fr
> <mailto:vnguyen@neuf.fr>> wrote:
>
> Hello,
>
> Does someone have some support to this (found in the doc) :
>
> Maximum Phrase Length
>
> The maximum length of phrases is limited to 7 words. The maximum
> phrase
> length impacts the size of the phrase translation table, so shorter
> limits may be desirable, if phrase table size is an issue. Previous
> experiments have shown that performance increases only slightly when
> including phrases of more that 3 words.
>
> Summary
>
> --max-phrase-length -- maximum length of phrases entered into
> phrase table (default 7)
>
>
> If there is no major improvement above 3, why is the default 7, and is
> there a benchmark somewhere ?
>
>
> Thanks
> Vincent.
> _______________________________________________
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> Moses-support@mit.edu <mailto:Moses-support@mit.edu>
> http://mailman.mit.edu/mailman/listinfo/moses-support
>
>

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