Python and Hidden Markov Model

Subhabrata subhabangalore at gmail.com
Fri Mar 8 18:53:02 CET 2013


On Mar 8, 7:29 pm, Oscar Benjamin <oscar.j.benja... at gmail.com> wrote:
> On 8 March 2013 05:26,  <subhabangal... at gmail.com> wrote:
>
> > On Friday, March 8, 2013 2:18:06 AM UTC+5:30, subhaba... at gmail.com wrote:
>
> >> I was trying to learn Hidden Markov Model. In Python there are various packages, but I was willing to do some basic calculation starting from the scratch so that I can learn the model very aptly. Do you know of any thing such?
>
> > My problem is over model validation on continuous time Markov system.
> > Generally, I understand the theory and can run the kits like HMM.py or Scikit-learn.
> > The problem is if I can not fit the data in run time I would be at the mercy of the kit.
> > So I wanted to know the coding of the computation.
>
> If those projects can do what you want then why not just look at their code?
>
> > I am specifically looking at the small python example of Forward, Backward and Viterbi
> > calculation. I tried to surf the web but did not help much.
>
> How about these two (both in Python):http://en.wikipedia.org/wiki/Viterbi_algorithm#Examplehttp://en.wikipedia.org/wiki/Forward%E2%80%93backward_algorithm#Pytho...
>
> > I do not know much of Scientific forum.
>
> Try scipy-user as a start (someone there may know of a better mailing list):http://mail.scipy.org/mailman/listinfo/scipy-user
>
> > I thought as HMM.py, NLTK, Scikit-learn are Python implementations so there would be lot
> > of people in the room who would know it.
> > And I got people like you, so I can not say I am wrong!
>
> Python as a programming language is used for many different things. I
> doubt that many people on this list will know what a Hidden Markov
> Model is. While I do know what they are, I have never done anything
> with them in Python or otherwise. However, if you ask in the right
> place, I'm sure that you will find people who have done similar things
> in Python.
>
> Oscar

Thank you Sir for your kind time. I would surely check them. Regards,
Subhabrata.



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