module Specs: sig
.. end
Specifications of covariance functions (= kernels) and their derivatives
module type Kernel = sig
.. end
Signature of kernels and their parameters
module type Eval = sig
.. end
Evaluation of covariance functions
module type Deriv = sig
.. end
Derivatives of covariance functions
module type Optimizer = sig
.. end
Derivatives of inputs for global optimization.