[SRILM User List] lattice-tool error while loading mesh

Andreas Stolcke stolcke at icsi.berkeley.edu
Wed Jul 11 17:25:37 PDT 2012

On 7/11/2012 3:15 PM, Long Qin wrote:
> Hi,
> I tried to load a confusion network in the mesh format using the 
> lattice-tool. The mesh contains word level time mark and scores. The 
> command I used is "lattice-tool -read-mesh -in-lattice mesh" And the 
> lattice-tool outputs the following error message:
> mesh: line 5: invalid word info
> error reading mesh
> The mesh file was generated using the "nbest-lattice" tool. So I guess 
> the format should be correct. Then the question is can lattice-tool 
> work with mesh file with word level time mark and scores?
Did you generate the mesh using nbest-lattice -use-mesh  ?   Can you 
send a small sample file?
It should not happen.

> Another question I want to ask is how can I convert nbest hypotheses 
> into a word lattice with time marks, acoustic and LM scores? It seems 
> the nbest-lattice tool can only produce a lattice without those word 
> level information.
Actually, nbest-lattice will do this when (1) the -nbest-backtrace 
option is given and (2) the nbest lists are in the 'NBestList2.0' format.
See the nbest-format(5) man page.  The format is awkward if you don't 
happen to be using the SRI Decipher recognizer, but it should work if 
you carefully convert your data into this format.


> Thanks,
> Long Qin
> _______________________________________________
> SRILM-User site list
> SRILM-User at speech.sri.com
> http://www.speech.sri.com/mailman/listinfo/srilm-user

More information about the SRILM-User mailing list