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<DIV>Hi,</DIV>
<DIV> </DIV>
<DIV>i faced a problem in perplexity calculation..</DIV>
<DIV>when i used the commands: 1) ngram -lm l1.lm -ppl t.txt </DIV>
<DIV> 2) ngram -lm l2.lm -lambda 0 -mix-lm l1.lm -ppl t.txt</DIV>
<DIV> </DIV>
<DIV>the first gives lowest perplexity that the second one. </DIV>
<DIV>Should the above commands give the different perplexity?</DIV>
<DIV> </DIV>
<DIV>thanks</DIV>
<DIV> </DIV>
<DIV>Akmal</DIV>
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