[SRILM User List] Reobtaining time information

[Andreas Stolcke]

On 7/30/2013 6:19 AM, Joris Pelemans wrote:
> Hello all,
>
> I am currently extracting n-best lists from lattices using the SRILM 
> lattice-tool for LM rescoring purposes. Unfortunately the extraction 
> removes the detailed time information that is present in the lattice. 
> I was wondering whether it is possible to reobtain this after finding 
> the best hypothesis from the n-best list i.e. search the lattice for 
> this hypothesis and reobtain the time information?
>
> By the way, I am using the -ignore-vocab option during n-best list 
> extraction. Does this complicate matters or can you also use this 
> option to find the time information?

There was a discussion about this recently.  It turns out there is 
currently no way to dump the alignment information associated with 
N-best lists, though that information is available internally.  Part of 
the issue is that there is no standard format (that I'm aware of) to 
represent N-best lists with alignment, pronunciation, and other acoustic 
information.

If you are interested and willing to put in some work I could advise on 
how to extend SRILM with this capability.

FYI, there is a way to include alignments info in confusion network 
output, in case that helps.

Andreas