[SRILM User List] Count-lm reference request

[E]

Hello,


I'm trying to understand the meaning of "google.count.lm0" file as given in FAQ section on creating LM from Web1T corpus. From what I read in Sec 11.4.1 Deleted Interpolation Smoothing in Spoken Language Processing, by Huang et al. 
(equation 11.22) bigram case


P(w_i | w_{i-1}) = \lambda * P_{MLE}(w_i | w_{i-1}) + (1 - \lambda) * P(w_i)


They call \lambda's as the mixture weights. I wonder if they are conceptually the same as the ones used in google.countlm. If so why are they arranged in a 15x5 matrix? Where can I read more about the same? 


Thanks.
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