what is the score of lattice and confusion network in kaldi

[Zahra Gomar]

hi dears.

what is the score of lattice and confusion networks???

are they likelihood or posterior or prior probabilities??

why the score of lattice and confusion networks are different when i print them??

thanks alot

[Daniel Povey]

There is no such thing as confusion networks in Kaldi, although there
is something with a similar structure that you can get from
lattice-mbr-decode. Perhaps you have another toolkit in mind.
Generally speaking the scores in lattices will be likelihoods, and you
would have to do a forward-backward to get the posteriors. In Kaldi
lattices the negative-log of the graph (LM) and acoustic likelihoods
are stored separately. There is documentation on lattices at
kaldi-asr.org/doc/. (it has its own section). If you have any
*specific* questions and that documentation doesn't answer them, ask
again.
Dan

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