From: nszabolcs@gmail.com   
      
   Hello   
      
   I'm working on regression as well and i don't know about a standard   
   benchmarks in this area.   
      
   In low dimension (1 or 2) i use sinc + white noise which seems to be   
   the most used in articles (however the exact parameters may vary), but   
   it's not the best choice.   
      
   I also  would like to see some datasets in this area with different   
   dimensionality / noise level / smoothness / input size.   
      
   IMHO currently the best solution is to make your own data and test the   
   method on that.   
   I'd choose sg like: F(x1,x2,x3,x4) = f1(x1) f2(x2) f3(x3) f4(x4) with   
   simple (sin?) functions.   
      
   nsz   
      
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