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General Viterbi Algorithm

by Jacob Shin

 

10 May 2006 (Updated 11 May 2006)

This function runs Viterbi algorithm given valid parameters and returns optimal path into a file (ou

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Description

General implementation of matlab version of Viterbi algorithm specifically written for gene structure finding problem in mind. However, it can be modified to suit the goal of a user.

Input:
Transition Probability Matrix
Emission Probability Matrix
Initial Probability Matrix
States Matrix (ie. Exon,Intron, Intergenic, etc.)
Sequence File Name <-- Optional
Output:
Most probable state sequence ('Path') into output.txt

Further Detail: http://en.wikipedia.org/wiki/Viterbi_algorithm

MATLAB release MATLAB 7 (R14)
Other requirements No other requirement. Just make sure to pass valid input parameters mentioned above. Then, it will generate output.txt file in your directory.
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Comments and Ratings (10)
12 May 2006 i scardanzan

one simple picture to visualize the optimal path ... i.e. one example please

25 Jul 2006 manickam l  
14 Jan 2007 mohammed amer

good

16 Apr 2007 Jerry Walsh

This file is an example of what should never be submitted here. Not only does is it very badly written, but it just plain doesn't work. Don't submit your throwaway code on here.

17 Apr 2007 Scott Lewis

good explanation

12 May 2007 b w

Doesn't work

25 Sep 2007 Toon Claes

Really poor code!

17 Mar 2008 Assem Abuhajar  
24 Sep 2008 Muhammad Naveed Ahmed

Thanks for your pretty good effort.

04 Feb 2009 rachida sghiri

thanks!

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Tag Activity for this File
Tag Applied By Date/Time
biotech Jacob Shin 22 Oct 2008 08:25:04
pharmaceutical Jacob Shin 22 Oct 2008 08:25:04
viterbi algorithm Jacob Shin 22 Oct 2008 08:25:04
computational biology Jacob Shin 22 Oct 2008 08:25:04
viterbi Jacob Shin 22 Oct 2008 08:25:04
bioinformatics Jacob Shin 22 Oct 2008 08:25:04
bioinformatics panos pap 07 Jul 2009 06:24:07
viterbi mido 10 Mar 2012 12:46:29

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