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[hts-users:02458] Re: Implementing coupled HMM by HMM stream tying


HI,

Anyway, please debug LoadWtAcc function in HTrain.c.
You should clarify that the problem is occurred by whether file
(*.acc) or source (HTrain.c).

Regards,
Keiichiro Oura

2010/4/27 Po-Sen Huang <huang.person@xxxxxxxxx>:
> Hi Keiichiro
> Yes I did. However, there is an weird thing. Only stream weights 1:1 can run
> to higher mixtures such as 13, 15. If I use stream weights 10:1, 5:1, it
> will have the problem I described in the questions:ERROR [+7191]  Infinite
> WtAcc!
> Have you done CHMM by stream tying HMM before? Thanks a lot.
> Sincerely,
> Po-Sen
>
> On Mon, Apr 26, 2010 at 11:28 AM, Keiichiro Oura <uratec@xxxxxxxxxxxxxxx>
> wrote:
>>
>> Hi,
>>
>> Did you check mixture weights in mmf file?
>>
>> Regards,
>> Keiichiro Oura
>>
>> 2010/4/23 Po-Sen Huang <huang.person@xxxxxxxxx>:
>> > Hi everyone
>> > I am implementing coupled HMM by HMM stream tying by Stephen Chu, Thomas
>> > Huang paper "Multi-modal sensory fusion with application to audio-visual
>> > speech recognition"
>> > In my setting, there are two streams in each state. I use HTS for stream
>> > tying. However, in reestimation in mixture>=3 case, there will be some
>> > errors:
>> > 1.Standard outputs: Merging results:   ERROR [+7031]  CheckStream: ph:
>> > Mix
>> > weights sum 0.000000e+00 for s=1, j=2
>> > 2.ERROR [+7191]  Infinite WtAcc!
>> > 3. WARNING [-2330]  UpdateWeights: Model 5[ap]: no use of mixtures
>> > in 6.1 in /HTKTools/HERest
>> >
>> > These errors will be obtained in different cases such longer scp file,
>> > shorter scp file.
>> > I think I correctly followed the paper. I am not sure whether it is
>> > HTS's
>> > problem or not. Have anyone implemented coupled using HMM stream tying
>> > before? Thank you very much
>> > Sincerely,
>> > Po-Sen
>>
>
>
>
> --
> Po-Sen Huang
>
> Graduate student
> Department of Electrical & Computer Engineering
> Beckman Institute for Advanced Science and Technology
> University of Illinois at Urbana-Champaign
> 405 N MATHEWS AVE, URBANA, IL 61801
> huang146@xxxxxxxxxxxx
>

References
[hts-users:02454] Implementing coupled HMM by HMM stream tying, Po-Sen Huang
[hts-users:02455] Re: Implementing coupled HMM by HMM stream tying, Keiichiro Oura