Re: [otb-users] Re: ANN produce not stable results

[Guillaume Pasero]

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 -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html   You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to otb-users@googlegroups.com To unsubscribe from this group, send email to otb-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to otb-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- Guillaume PASERO Responsable technique Business Unit E-SPACE & Geo Information - Département Image & Applications CS Systèmes d'Information Parc de la Grande Plaine - 5, Rue Brindejonc des Moulinais - BP 15872 31506 Toulouse Cedex 05 - FRANCE +33 561 17 64 21 - guillaume.pas...@c-s.fr -- -- Check the OTB FAQ at http://www.orfeo-toolbox.org/FAQ.html   You received this message because you are subscribed to the Google Groups "otb-users" group. To post to this group, send email to otb-users@googlegroups.com To unsubscribe from this group, send email to otb-users+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/otb-users?hl=en --- You received this message because you are subscribed to the Google Groups "otb-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to otb-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.