---------- Forwarded message ---------- From: K.Taraka Rama <[email protected]> Date: Tue, Jan 13, 2009 at 2:47 AM Subject: Re: [Moses-support] Problems with new MERT implementation To: Barry Haddow <[email protected]>
Dear Barry, Yes, I changed the LENGTH variable. I am attaching the mert.log file. On Tue, Jan 13, 2009 at 2:34 AM, Barry Haddow <[email protected]> wrote: > Dear Taraka > > Answers inline > > On Monday 12 January 2009 20:29:46 K.Taraka Rama wrote: > > Dear Experts, > > > > I have the following doubts regarding the new mert implementation: > > > > 1. I know that the mert implementation is based on the Och's paper of > > Minimum Error Rate Training and Discriminative models for SMT, which > > tries to optimise the feature function's weights. In Moses website it is > > written that there are 5 translation weights. What do the 5 translation > > feature functions stand for? > > Forward and backward phrase translation (log) probabilities, forward and > backward lexical translation weights, and a phrase penalty. > http://www.statmt.org/moses/?n=FactoredTraining.ScorePhrases > > > 2. What are the default weights for the feature functions? > These are usually set to 0.2 by train-factored-phrase-model.perl > > > 3. I have the following problem when I run the new mert script. > > > > "Failed to parse mert.log, missed Best point there. at > > > /home/taraka/moses/bin/moses-scripts/scripts-20081123-1240/training/mert-mo > >ses-new.pl line 638." > > > > I have tried to change the value of "n" in Bleu score function and > > recompile it. It worked for the first time. It didnt give any error. The > > next time I did the same thing and it started giving the above error. I > > tried with "--continue" switch, still it didnt change any thing. > > I take it you mean that you changed the LENGTH variable? > Possibly mert crashed. Could you post the mert.log file? It should be in > the > working directory. I don't think the --continue option works (yet) with the > new mert. Make sure you use a clean working directory for a new run, > > regards > Barry > > > > > I believe there is no problem with the data, because I was able to run > the > > old implementation of MERT on it and also test the models. > > > > -- With Regards, Taraka Rama. -- With Regards, Taraka Rama.
mert.log
Description: Binary data
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