Constrains the weights incident to each hidden unit to have unit norm.
constraint_unitnorm(axis = 1L)A Constraint instance, a callable that can be passed to layer
constructors or used directly by calling it with tensors.
integer, axis along which to calculate weight norms.
For instance, in a Dense layer the weight matrix
has shape (input_dim, output_dim),
set axis to 0 to constrain each weight vector
of length (input_dim,).
In a Conv2D layer with data_format = "channels_last",
the weight tensor has shape
(rows, cols, input_depth, output_depth),
set axis to [0, 1, 2]
to constrain the weights of each filter tensor of size
(rows, cols, input_depth).
Other constraints:
Constraint()
constraint_maxnorm()
constraint_minmaxnorm()
constraint_nonneg()