Default smoothing in ngram-count

[Robert Wagner]

Hi to all!
 I haven't found anywhere in SRILM's documentation what is a default 
smoothing option to ngram-count. Is it Katz backoff?

I have also got a following warning: discount coeff 1 is out of 
range. What does it mean? Is it a bad thing?

I would also like to know whether is there some kind of compatibility 
between SRILM and CMU language modeling toolkit, i.e. if it is 
possible to use n-gram counts gained by CMU in SRILM and reversaly.

And last question (probably stupid;-)): What are reverse n-grams good 
for?

 Thanks
Robert

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