Remove sparse regularization.
@@ -8,7 +8,6 @@ lookup_embedder:
with_grad: False #
regularize: 'l2' # '', 'l1', 'l2'
regularize_args:
- sparse: True
weight: 0.0
initialize: normal_ # xavier_uniform_, xavier_normal_, uniform_, normal_, auto_initialization
initialize_args: # this is default if specific option below are not specified
