def on_max_iou(old_val, new_val):
print ">>> IOU Increased from %s to %s" % (old_val, new_val)
ttu.save_network(trial, "best", network)
trial.store_important("best_valid_iou", new_val)
valid_chunk = valid_gen.next()
import theano
import treeano
import canopy
import canopy.sandbox.monitor_ui
print "Making new model."
model = make_model(params)
print(model)
network = model.network()
# build eagerly to share weights
network.build()
# to make sure network is serializable
ttu.save_network(trial, "initial", network)
# Validation
valid_fn = canopy.handled_fn(
network,
[
canopy.handlers.time_call(key="valid_time"),
canopy.handlers.override_hyperparameters(
deterministic=True,
bn_use_moving_stats=False,
),
canopy.handlers.evaluate_monitoring_variables(fmt="valid_%s"),
canopy.handlers.chunk_variables(batch_size=params.batch_size,
variables=["x", "y"])
],
inputs={"x": "x", "y": "y"},