Thank you for the past answers to my questions.
I've got another question. Sometimes, when I use a Good-Turing
discounting, some of the backoff weight of the unigram (I compute a
bigram model) are positive log-probability. How is it possible ? Is it
because Good-Turing discounting is disabled on unigram since there are
no unigram which frequency is 1 ? And, more, generally, how are computed
backoff weights for unigrams, in the case of a bigram model ?
Thanks a lot for your answers.
Solen.
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