Translate sparsity regularization to Keras regularizer

Translate sparsity regularization to Keras regularizer

# S3 method for ruta_sparsity
to_keras(x, activation)

Arguments

x	Sparsity object
activation	Name of the activation function used in the encoding layer

Value

Function which can be used as activity regularizer in a Keras layer

References

• Sparse deep belief net model for visual area V2

• Andrew Ng, Sparse Autoencoder. CS294A Lecture Notes (2011)