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Quaternion-valued positive definite functions on locally compact Abelian groups and nuclear spaces.

Daniel AlpayFabrizio ColomboDavid P. KimseyIrene Sabadini
Published in: Appl. Math. Comput. (2016)
Keyphrases
  • positive definite
  • covariance matrix
  • kernel function
  • geometric structure
  • kernel matrix
  • kernel machines
  • diffusion tensor
  • semi parametric
  • feature extraction
  • linear combination
  • constrained optimization