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ObjectiveFunction

class ObjectiveFunction(X, y, neural_network, loss)[source]

Bases : object

An abstract objective function. Provides methods for computing objective value and gradients for forward and backward passes.

Paramètres
  • X (ndarray) – The input data.

  • y (ndarray) – The target values.

  • neural_network (NeuralNetwork) – An instance of an quantum neural network to be used by this objective function.

  • loss (Loss) – A target loss function to be used in training.

Methods

gradient(weights)

Computes gradients of this objective function given weights.

objective(weights)

Computes the value of this objective function given weights.