Re: [Kaldi-users] Convert kaldi lattices into HTK compatible format, utils/convert_slf.pl

[David M. <da...@ca...>]

Hi Karel,

utils/int2sym.pl seems to expect -f option. This command-line produced 
sensible looking lattices

lattice-align-words exp/tri3b/graph_bd_tgpr/phones/word_boundary.int 
exp/tri3b/final.mdl 'ark:gunzip -c 
exp/tri3b/decode_bd_tgpr_eval92_fg/lat.1.gz |' ark,t:- | 
utils/int2sym.pl -f 3 exp/tri3b/graph_bd_tgpr/words.txt | 
utils/convert_slf.pl --word-to-node - ~/slf/


On the other hand, this one with the new tool produced lattices with 
word indexes:
lattice-align-words-lexicon data/lang_bd/phones/align_lexicon.int 
exp/tri3b/final.mdl 'ark:gunzip -c 
exp/tri3b/decode_bd_tgpr_eval92_fg/lat.1.gz |' ark,t:- | 
utils/convert_slf.pl --word-to-node - ~/slf/

The first pipe worked so I will go with that.

Thanks,
David




On 05/02/2014 13:37, Vesely Karel wrote:
> Hello David,
> I just modified the example to include the int->word mapping,
> the lattices will now contain words, it is commited.
>
> Eventually you can also try newer tool 'lattice-align-words-lexicon',
> which uses lexicon to do the aligning. For this you need to have
> data/lang/phones/align_lexicon.int
>
> K.
>
>
> On 02/05/2014 01:32 PM, Korbinian Riedhammer wrote:
>> Hi David,
>>
>> yes, the numbers associated with the words are indices, you can
>> resolve them using the data/lang/words.txt file. The warnings you see
>> relate to process of alignining the lattices to words (i.e. making
>> sure that the word arcs (transitions) reflect the actual word
>> boundaries in terms of time), and not to the SLF conversion. To get
>> rid of the epsilon transitions you may need to determinize the
>> lattices first (please correct me, if I'm wrong, Dan).
>>
>> Korbinian.
>>
>> On Wed, Feb 5, 2014 at 12:34 PM, David Mrva 
>> <da...@ca...> wrote:
>>> Hi Karel,
>>>
>>> Thanks for you help. Based on you new example in the convert_slf.pl 
>>> script I
>>> made up a command-line that now produces HTK lattices from wsj 
>>> example kaldi
>>> lattices. It gives me a warning. Is it anything to worry about? The
>>> resulting lattices have words labelled with numbers, see below. Are the
>>> numbers some indexes? How can I get words to the HTK lattice?
>>>
>>> David
>>>
>>>