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 Post subject: How can I define the constrant bound of CG optimizer?
PostPosted: Mon Feb 14, 2011 8:16 am 
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Joined: Mon Feb 14, 2011 8:09 am
Posts: 5
Hi everybody,
I'm using Conjugate Gradient Method to optimize an real 1d array x,
each element of x corresponds to a position of an image,
so...they should be larger than 0 and smaller than width/height of the image.
How can I encode these constraints to my optimizer?
Thx pretty much~


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 Post subject: Re: How can I define the constrant bound of CG optimizer?
PostPosted: Mon Feb 14, 2011 12:31 pm 
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Joined: Fri May 07, 2010 7:06 am
Posts: 927
If you have boundary constraints only, you can use minasa subpackage, which supports optimization with constraints like a<=x<=b. Internally it uses nonlinear CG.


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 Post subject: Re: How can I define the constrant bound of CG optimizer?
PostPosted: Tue Feb 15, 2011 5:24 am 
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Joined: Mon Feb 14, 2011 8:09 am
Posts: 5
Sergey.Bochkanov wrote:
If you have boundary constraints only, you can use minasa subpackage, which supports optimization with constraints like a<=x<=b. Internally it uses nonlinear CG.

Thx. It works :-)


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