comment about noisy labels

FastMinKernel.cpp

@@ -545,8 +545,11 @@ void FastMinKernel::hik_kernel_multiply(const NICE::VVector & _A,
     }
   }
 
-  //FIXME
-  //do we really want to considere noisy labels?
+  // The following code simply adds noise * alpha to the result
+  // to calculate the multiplication with the regularized kernel matrix.
+  //
+  // Do we really want to considere noisy labels?
+  // Yes, otherwise this would be not consistent with solveLin etc.
   for (uint feat = 0; feat < this->ui_n; feat++)
   {
     _beta[feat] += this->d_noise*_alpha[feat];