in example_zoo/tensorflow/models/keras_cifar_main/official/resnet/keras/keras_common.py [0:0]
def build_stats(history, eval_output, time_callback):
"""Normalizes and returns dictionary of stats.
Args:
history: Results of the training step. Supports both categorical_accuracy
and sparse_categorical_accuracy.
eval_output: Output of the eval step. Assumes first value is eval_loss and
second value is accuracy_top_1.
time_callback: Time tracking callback likely used during keras.fit.
Returns:
Dictionary of normalized results.
"""
stats = {}
if eval_output:
stats['accuracy_top_1'] = eval_output[1].item()
stats['eval_loss'] = eval_output[0].item()
if history and history.history:
train_hist = history.history
# Gets final loss from training.
stats['loss'] = train_hist['loss'][-1].item()
# Gets top_1 training accuracy.
if 'categorical_accuracy' in train_hist:
stats[TRAIN_TOP_1] = train_hist['categorical_accuracy'][-1].item()
elif 'sparse_categorical_accuracy' in train_hist:
stats[TRAIN_TOP_1] = train_hist['sparse_categorical_accuracy'][-1].item()
if time_callback:
timestamp_log = time_callback.timestamp_log
stats['step_timestamp_log'] = timestamp_log
stats['train_finish_time'] = time_callback.train_finish_time
if len(timestamp_log) > 1:
stats['avg_exp_per_second'] = (
time_callback.batch_size * time_callback.log_steps *
(len(time_callback.timestamp_log)-1) /
(timestamp_log[-1].timestamp - timestamp_log[0].timestamp))
return stats