Hi,
I think it is possible to get outputs from libSVM during processing.
When I use this library, I get messages like :
optimization finished, #iter = 113
nu = 0.038199
obj = -22.175591, rho = 0.331874
nSV = 38, nBSV = 28
Do you get these messages when running the command line application
?
Guillaume
On 02/03/2016 11:20 AM, Hristo Nikolov
wrote:
Dear Guillaume,
Thank you for your suggestion. As I pointed above I use the
GUI version of OTB.
What I shall do is to follow your advice and move to CLI.
Just a small addition - the libSVM runs for more than 7
days and still not finished.
Is it possible to integrate some parameter that shows the
convergence when
running the learning phase of the modules in this library?
By now the only way for me is to check the amount of memory
used by this
process which is not a good estimate for this purpose.
Hristo
On Friday, 29 January 2016 10:59:44 UTC+2, Guillaume Pasero
wrote:
Hi,
In order to have stable results you should use the seed
parameter, so that the Random Number Generator used during
sample selection always gives the same samples : in the
otbcli , it is the parameter key '-rand'.
For the ANN, with the parameter "-classifier.ann.sizes",
you can give multiple sizes to have several layers.
HTH,
Guillaume
On 01/18/2016 05:41 PM, Hristo Nikolov wrote:
One more observation - when using
polynomial as kernel function I can not set the degree
of the polynomial.
On Wednesday, 13 January 2016 15:40:40 UTC+2, Hristo
Nikolov wrote:
Dear all,
I have been experimenting with ANN provided
from OTB for some months now.
What I experienced is that as module in QGIS
the ANN from OTB has limitation
of creating only single layer networks, but
the results produced remain the same
under same initial parameters. Lastly I tried
to the otbgui version provided by
OSGeo4W, but it results that even the
parameters in the dialog box are the
same the output produced and more
specifically the error matrix is different
every time the training takes place.
Could you advise?
Thank you.
Hristo
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PASERO
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Département Image & Applications
CS Systèmes d'Information
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Moulinais - BP 15872
31506 Toulouse Cedex 05 - FRANCE
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