[SRILM User List] (no subject)

[hic et nunc]

hello again. i have a new question about lm ngram probs. 
as you know well, in lm file, the log probs are calculated like this: log [(count[n-gram]*d/count[(n-1)-gram] - count[(n-1)-gram_<unk>]] 
sometimes 1 is added to denominator, but sometimes not. what is the reason of this? 
 		 	   		  thanks. 		 	   		  
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