[SRILM User List] Computing nbest-error rate from HTK MLF files

[E]

Hello all,


I have n-best results from HTK for lots of wav files in a single MLF file. I want to compute nbest-error rate using SRILM toolkit. I would like to know - 

1. Is there any direct way to convert HTK n-best MLF format into SRILM n-best format (http://www.speech.sri.com/projects/srilm/manpages/nbest-format.5.html). Or should I write a script for that?


2. What does the n-best error actually mean in SRILM? Suppose I have 10 hypotheses for each wav file. I am familiar with usual way of reporting errors using WER.


Does nbest correctness mean the number of words in reference that occur ANYWHERE in the nbest-list? Does nbest deletions mean the number of words in reference that occur NOWHERE in the nbest-list? What does nbest substitutions mean?

Thanks,

Ethan


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