Amaresh V Malipatil wrote:
>
> Hi,
> I am using matlab command "quadprog" to solve a QP problem for SVM regression.
> But quite often, I get a warning that the problem is badly conditioned and so
> the solution may be unreliable. Infact in such cases the solution to QP problem
> yields a result, that is way off from the expected result. Could anyone tell me
> what exactly bad conditioned problem means, and also if possible suggest ways
> to avoid it.
>
> Thanks in advance.
> --
> Amaresh V Malipatil
> Graduate Student
> Department of Electrical Engineering
> University of Notre Dame
> Indiana 46556
Hi Amaresh
Please cheeck all the parameter setting for the function 'quadprog'.
When Hessian matrix construct unproperly that time you will receive this
type of messages. I think better to look Steve Gunn code. Please find it
from the below URL
http://www.kernel-machines.org/software.html
Sincerely yours.
S.Ali
--------------------------------
Shawkat Ali
School of BusSys
Faculty of IT
Monash University
VIC 3800,Australia
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