From: pippo@pluto.it   
      
   "denny"  ha scritto nel messaggio   
      
   > I guess the behavior of the system is non-stationary.   
      
   right   
      
   > Also, any regression technique, be it mlr, neural networks etc., can   
   > be expected to reliably perform only interpolation, and not   
   > extrapolation as you are demanding.   
   > Hope this helped.   
      
   sure!   
   In fact, my idea about SVM was wrong. SVM regression works well only inside   
   the traning range.   
   I'm thinking to use an Extended Kalman Filter to study the behaviour of my   
   data outside the training range   
   Thank you very much for your answer.   
   Roberto   
      
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