Re: [Moses-support] When to truecase

2015-05-22 Thread Ondrej Bojar
Cc: moses-support@mit.edu Sent: Wednesday, 20 May, 2015 20:50:41 Subject: Re: [Moses-support] When to truecase Got it. So then, how was casing handled in the mbr/mp column? Was all of the data lowercased, then models trained, then recasing applied after decoding? Or something else? On Wed

Re: [Moses-support] When to truecase

2015-05-22 Thread Matthias Huck
: moses-support@mit.edu Sent: Wednesday, 20 May, 2015 20:50:41 Subject: Re: [Moses-support] When to truecase Got it. So then, how was casing handled in the mbr/mp column? Was all of the data lowercased, then models trained, then recasing applied after decoding? Or something else

Re: [Moses-support] When to truecase

2015-05-21 Thread Ergun Bicici
recaser: builds a Moses model for word translation from lowercased to cased and also uses a language model. Input to recaser is lowercased. truecaser: builds a casing model based on the number of times each version appears in text (e.g. rivet (4/8) Rivet (3) RIVET (1)). Input to truecaser is as

[Moses-support] When to truecase

2015-05-20 Thread Lane Schwartz
Philipp (and others), I'm wondering what people's experience is regarding when truecasing is applied. One option is to truecase the training data, then train your TM and LM using that truecased data. Another option would be to lowercase the data, train TM and LM on the lowercased data, and then

Re: [Moses-support] When to truecase

2015-05-20 Thread Philipp Koehn
Hi, no, the changes are made incrementally. So the recesed baseline is the previous mbr/mp column. -phi On Wed, May 20, 2015 at 2:01 PM, Lane Schwartz dowob...@gmail.com wrote: Philipp, In Table 2 of the WMT 2009 paper, are the baseline and truecased columns directly comparable? In other

Re: [Moses-support] When to truecase

2015-05-20 Thread Lane Schwartz
Got it. So then, how was casing handled in the mbr/mp column? Was all of the data lowercased, then models trained, then recasing applied after decoding? Or something else? On Wed, May 20, 2015 at 1:30 PM, Philipp Koehn p...@jhu.edu wrote: Hi, no, the changes are made incrementally. So the

Re: [Moses-support] When to truecase

2015-05-20 Thread Philipp Koehn
Hi, yes, this is what the RECASER section in EMS enables. -phi On Wed, May 20, 2015 at 2:50 PM, Lane Schwartz dowob...@gmail.com wrote: Got it. So then, how was casing handled in the mbr/mp column? Was all of the data lowercased, then models trained, then recasing applied after decoding?

Re: [Moses-support] When to truecase

2015-05-20 Thread Philipp Koehn
Hi, see Section 2.2 in our WMT 2009 submission: http://www.statmt.org/wmt09/pdf/WMT-0929.pdf One practical reason to avoid recasing is the need for a second large cased language model. But there is of course also the practical issue with have a unique truecasing scheme for each data condition,

Re: [Moses-support] When to truecase

2015-05-20 Thread Lane Schwartz
Philipp, In Table 2 of the WMT 2009 paper, are the baseline and truecased columns directly comparable? In other words, do the two columns indicate identical conditions other than a single variable (how and/or when casing was handled)? In the baseline condition, how and when was casing handled?