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Toolbox Sparse Optmization

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Toolbox Sparse Optmization

by Gabriel Peyre

 

01 Sep 2007 (Updated 03 Jan 2011)

Optimization codes for sparsity related signal processing

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Description

This toolbox contains the implementation of what I consider to be fundamental algorithms
for non-smooth convex optimization of structured functions. These algorithms might not be the fasted
(although they certainly are quite efficient), but they all have a simple implementation in term
of black boxes (gradient and proximal mappings, given as callbacks). However, you should have
some knowledge about what is a gradient operator and a proximal mapping in order to be able
to use this toolbox on your own problems. I suggest you have a look at the
"suggested readings" for some more information about all this.

MATLAB release MATLAB 7.4 (R2007a)
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Comments and Ratings (11)
05 Sep 2007 li hengjian

Gabriel Peyré ,you very good !
just one year!,you havedone a lot of work on
signal processing

29 Nov 2007 Jianwei Ma

Hello Gabriel, Thanks very much for your code. But it will be better to provide a readme file with more detailed description.

02 Apr 2008 Prasad Gurlahosur  
02 Aug 2008 dafav ffaffb

There are some file lost in you code.Please give a whole code.

09 May 2009 Andrea Santos

Hi, Gabriel your work is really interesting.

Actually, I am working with unmixing techniques for images and I want to apply sparse positive matrix factorization. I find your code could be very useful to me but, I do not have clear how to use the code. Can you help me sending me maybe a readme file with more details. I am really excited to use these functions.
Thanks.

18 Feb 2010 Farshid Zoghalchi  
18 Apr 2010 Ganesh AS

Is there any GUI associated with this?

29 Dec 2010 wu

it will be better if your zip contains a file of description

29 Dec 2010 wu

 some files are lost such as Homotopie2.m
you'd better update your file.

23 Aug 2011 Bo

Thanks very much

14 Jan 2012 hunan

very good

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Updates
12 Sep 2007

Improvement of the dictionary learning method.

24 Sep 2007

Enhanced dictionary and signature learning.

02 Oct 2007

Dictionary learning with missing data, learning of orthogonal dictionaries.

21 Nov 2007

Fixed a few bugs.

25 Jun 2009

BSD Licence

27 Jun 2009

Update of Licence

19 Jul 2009

Modified license.
Remove GPL files. Gabriel said he will redo this in January.

03 Jan 2011

Totally changed the toolbox to contain only optimization codes.

Tag Activity for this File
Tag Applied By Date/Time
time frequency Gabriel Peyre 22 Oct 2008 09:25:17
wavelets Gabriel Peyre 22 Oct 2008 09:25:17
sparsity Gabriel Peyre 22 Oct 2008 09:25:17
l1 minimization Gabriel Peyre 22 Oct 2008 09:25:17
deconvolution Gabriel Peyre 22 Oct 2008 09:25:17
compressed sensing Gabriel Peyre 22 Oct 2008 09:25:17
deconvolution daniel lamont 29 Mar 2010 13:05:26
total variation Gabriel Peyre 03 Jan 2011 11:14:03
compressed sensing tstmwind 31 Mar 2011 17:38:25
compressed sensing Daniele 02 May 2011 14:51:34
compressed sensing yu 25 Jul 2011 03:09:01
total variation Jerome 11 Aug 2011 09:02:00
compressed sensing sterlesser 20 Sep 2011 09:26:34
test Tian 20 Oct 2011 11:30:53
compressed sensing Ben Xu 24 Nov 2011 08:04:16
deconvolution Ben Xu 24 Nov 2011 08:04:23
l1 minimization Ben Xu 24 Nov 2011 08:04:26

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