Not sure about the entries in weights file

[chen]

Hello,

 

I looked into the weights file of cdec-demo. I don't understand of the following entries:

   LanguageModel_OOV
   Number

 

I am also not sure about the 'PhraseModel_0', 'PhraseModel_1', 'PhraseModel_2 '. Are they related to the first three column of the prabability part of the rule file ? 

 

 

Is there a document which describes about it?