Hermite polynomials
Families of orthogonal polynomials. See Thisted (1988, 5.3.2).
 
 
     
 
  Hessian
The second derivative matrix of a function .
 
 
     
 
  hints
The idea of 'hints' is to incorporate qualitative information into the classifier.
 
 
     
 
  HME
Hierarchical mixtures of experts. A tree-structured way to select a combination of classifiers.