def construct_fn(): # pylint: disable=invalid-name
"""Function for constructing shared models."""
# If we are evaluating on TPU, initialize the TPU.
# TODO(b/143484017): Add model warmup for TPU.
if tf.saved_model.TPU in tags:
tf.tpu.experimental.initialize_tpu_system()
if (model_type == constants.TF_ESTIMATOR and
eval_constants.EVAL_TAG in tags):
model = load.EvalSavedModel(
eval_saved_model_path,
include_default_metrics,
additional_fetches=additional_fetches,
blacklist_feature_fetches=blacklist_feature_fetches,
tags=tags)
if add_metrics_callbacks:
model.register_add_metric_callbacks(add_metrics_callbacks)
model.graph_finalize()
elif model_type == constants.TF_KERAS:
# TODO(b/141524386, b/141566408): TPU Inference is not supported
# for Keras saved_model yet.
model = tf.keras.models.load_model(eval_saved_model_path)
elif model_type == constants.TF_LITE:
# The tf.lite.Interpreter is not thread-safe so we only load the model
# file's contents and leave construction of the Interpreter up to the
# PTransform using it.
model_filename = os.path.join(eval_saved_model_path, _TFLITE_FILE_NAME)
with tf.io.gfile.GFile(model_filename, 'rb') as model_file:
model = ModelContents(model_file.read())
elif model_type == constants.TF_JS:
# We invoke TFJS models via a subprocess call. So this call is no-op.
return None
else:
model = tf.compat.v1.saved_model.load_v2(eval_saved_model_path, tags=tags)
return model
def testEvaluateExistingMetricsBasic(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = multi_head.simple_multi_head(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeMultiHeadExample('english').SerializeToString()
example2 = self._makeMultiHeadExample('chinese').SerializeToString()
example3 = self._makeMultiHeadExample('other').SerializeToString()
eval_saved_model.metrics_reset_update_get_list(
[example1, example2, example3])
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values, {
'accuracy/english_head': 1.0,
'accuracy/chinese_head': 1.0,
'accuracy/other_head': 1.0,
'auc/english_head': 1.0,
'auc/chinese_head': 1.0,
'auc/other_head': 1.0,
'label/mean/english_head': 1.0 / 3.0,
'label/mean/chinese_head': 1.0 / 3.0,
'label/mean/other_head': 1.0 / 3.0
})
def testEvaluateExistingMetricsWithExportedCustomMetricsDNN(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = dnn_classifier.simple_dnn_classifier(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeExample(age=3.0, language='english', label=1.0)
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example1.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
example2 = self._makeExample(age=2.0, language='chinese', label=0.0)
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example2.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values,
{
# We don't check accuracy and AUC here because it varies from run to
# run due to DNN initialization
'my_mean_age': 2.5,
'my_mean_label': 0.5,
'my_mean_age_times_label': 1.5
})
self.assertIn('my_mean_prediction', metric_values)
self.assertIn('prediction/mean', metric_values)
self.assertAlmostEqual(metric_values['prediction/mean'],
metric_values['my_mean_prediction'],
places=5)
def construct(): # pylint: disable=invalid-name
"""Function for constructing a EvalSavedModel."""
start_time = datetime.datetime.now()
result = load.EvalSavedModel(eval_saved_model_path)
if add_metrics_callbacks:
features_dict, predictions_dict, labels_dict = (
result.get_features_predictions_labels_dicts())
features_dict = util.wrap_tensor_or_dict_of_tensors_in_identity(
features_dict)
predictions_dict = util.wrap_tensor_or_dict_of_tensors_in_identity(
predictions_dict)
labels_dict = util.wrap_tensor_or_dict_of_tensors_in_identity(labels_dict)
with result.graph_as_default():
metric_ops = {}
for add_metrics_callback in add_metrics_callbacks:
new_metric_ops = add_metrics_callback(features_dict, predictions_dict,
labels_dict)
overlap = set(new_metric_ops.keys()) & set(metric_ops.keys())
if overlap:
raise ValueError('metric keys should not conflict, but an '
'earlier callback already added the metrics '
'named %s' % overlap)
metric_ops.update(new_metric_ops)
result.register_additional_metric_ops(metric_ops)
end_time = datetime.datetime.now()
model_load_seconds_distribution.update(
int((end_time - start_time).total_seconds()))
return result
def testServingGraphAlsoExportedIfSpecified(self):
# Most of the example trainers also pass serving_input_receiver_fn to
# export_eval_savedmodel, so the serving graph should be included.
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (
fixed_prediction_estimator.simple_fixed_prediction_estimator(
None, temp_eval_export_dir))
# Check the eval graph.
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeExample(prediction=0.9, label=0.0)
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example1.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(metric_values,
{'average_loss': 0.81})
# Check the serving graph.
estimator = tf.contrib.estimator.SavedModelEstimator(eval_export_dir)
def predict_input_fn():
return {'inputs': tf.constant([example1.SerializeToString()])}
predictions = next(estimator.predict(predict_input_fn))
self.assertAllClose(predictions['outputs'], np.array([0.9]))
def _computeMetricsWithoutBeamNoBatching(
self, eval_saved_model_path: Text,
serialized_examples: List[bytes]) -> Dict[Text, Any]:
"""Computes metrics in-memory using the low-level APIs without Beam.
This is the non-batched version of computeMetricsWithoutBeam. This can be
useful for debugging batching issues with TFMA or with your model
(e.g. your model or metrics only works with a fixed-batch size - TFMA
requires that your model can accept batches of any size)
Args:
eval_saved_model_path: Path to the directory containing the
EvalSavedModel.
serialized_examples: List of serialized example bytes.
Returns:
Metrics computed by TFMA using your model on the given examples.
"""
eval_saved_model = load.EvalSavedModel(eval_saved_model_path)
for example in serialized_examples:
for fpl in eval_saved_model.as_features_predictions_labels(
eval_saved_model.predict(example)):
eval_saved_model.perform_metrics_update(fpl)
return eval_saved_model.get_metric_values()
def testLoadSavedModelDisallowsAdditionalFetchesWithLabels(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = multi_head.simple_multi_head(
None, temp_eval_export_dir)
with self.assertRaisesRegexp(
ValueError, 'additional_fetches should not contain "labels"'):
load.EvalSavedModel(eval_export_dir, additional_fetches=['labels'])
def testEvaluateExistingMetricsWithExportedCustomMetrics(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = linear_classifier.simple_linear_classifier(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeExample(age=3.0, language='english', label=1.0)
example2 = self._makeExample(age=2.0, language='chinese', label=0.0)
eval_saved_model.metrics_reset_update_get_list(
[example1.SerializeToString(),
example2.SerializeToString()])
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values, {
'accuracy': 1.0,
'auc': 1.0,
'my_mean_age': 2.5,
'my_mean_label': 0.5,
'my_mean_age_times_label': 1.5
})
self.assertIn('my_mean_prediction', metric_values)
self.assertIn('prediction/mean', metric_values)
self.assertAlmostEqual(metric_values['prediction/mean'],
metric_values['my_mean_prediction'],
places=5)
def construct(): # pylint: disable=invalid-name
"""Function for constructing shared ModelTypes."""
start_time = datetime.datetime.now()
saved_model = None
keras_model = None
eval_saved_model = None
if model_path:
if tf.version.VERSION.split('.')[0] == '1':
saved_model = tf.compat.v1.saved_model.load_v2(model_path,
tags=[tag])
else:
saved_model = tf.saved_model.load(model_path, tags=[tag])
try:
keras_model = tf.keras.experimental.load_from_saved_model(
model_path)
except tf.errors.NotFoundError:
pass
if eval_saved_model_path:
eval_saved_model = load.EvalSavedModel(
eval_saved_model_path,
include_default_metrics,
additional_fetches=additional_fetches,
blacklist_feature_fetches=blacklist_feature_fetches)
if add_metrics_callbacks:
eval_saved_model.register_add_metric_callbacks(
add_metrics_callbacks)
eval_saved_model.graph_finalize()
end_time = datetime.datetime.now()
model_load_seconds_callback(
int((end_time - start_time).total_seconds()))
return types.ModelTypes(saved_model=saved_model,
keras_model=keras_model,
eval_saved_model=eval_saved_model)
def testServingGraphAlsoExportedIfSpecified(self):
# Most of the example trainers also pass serving_input_receiver_fn to
# export_eval_savedmodel, so the serving graph should be included.
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (
fixed_prediction_estimator.simple_fixed_prediction_estimator(
None, temp_eval_export_dir))
# Check the eval graph.
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeExample(prediction=0.9,
label=0.0).SerializeToString()
eval_saved_model.metrics_reset_update_get(example1)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(metric_values,
{'average_loss': 0.81})
# Check the serving graph.
# TODO(b/124466113): Remove tf.compat.v2 once TF 2.0 is the default.
if hasattr(tf, 'compat.v2'):
imported = tf.compat.v2.saved_model.load(
eval_export_dir, tags=tf.saved_model.SERVING)
predictions = imported.signatures[
tf.saved_model.DEFAULT_SERVING_SIGNATURE_DEF_KEY](
inputs=tf.constant([example1.SerializeToString()]))
self.assertAllClose(predictions['outputs'], np.array([[0.9]]))
def construct(): # pylint: disable=invalid-name
"""Function for constructing shared models."""
start_time = datetime.datetime.now()
# If we are evaluating on TPU, initialize the TPU.
# TODO(b/143484017): Add model warmup for TPU.
if tf.saved_model.TPU in tags:
tf.tpu.experimental.initialize_tpu_system()
if (model_type == constants.TF_ESTIMATOR
and eval_constants.EVAL_TAG in tags):
model = load.EvalSavedModel(
eval_saved_model_path,
include_default_metrics,
additional_fetches=additional_fetches,
blacklist_feature_fetches=blacklist_feature_fetches,
tags=tags)
if add_metrics_callbacks:
model.register_add_metric_callbacks(add_metrics_callbacks)
model.graph_finalize()
elif model_type == constants.TF_KERAS:
# TODO(b/141524386, b/141566408): TPU Inference is not supported
# for Keras saved_model yet.
model = tf.keras.models.load_model(eval_saved_model_path)
else:
model = tf.compat.v1.saved_model.load_v2(eval_saved_model_path,
tags=tags)
end_time = datetime.datetime.now()
model_load_seconds_callback(
int((end_time - start_time).total_seconds()))
return model
def construct(): # pylint: disable=invalid-name
"""Function for constructing shared ModelTypes."""
start_time = datetime.datetime.now()
saved_model = None
keras_model = None
eval_saved_model = None
if tags == [eval_constants.EVAL_TAG]:
eval_saved_model = load.EvalSavedModel(
eval_saved_model_path,
include_default_metrics,
additional_fetches=additional_fetches,
blacklist_feature_fetches=blacklist_feature_fetches)
if add_metrics_callbacks:
eval_saved_model.register_add_metric_callbacks(add_metrics_callbacks)
eval_saved_model.graph_finalize()
else:
try:
keras_model = tf.keras.models.load_model(eval_saved_model_path)
except Exception: # pylint: disable=broad-except
saved_model = tf.compat.v1.saved_model.load_v2(
eval_saved_model_path, tags=tags)
end_time = datetime.datetime.now()
model_load_seconds_callback(int((end_time - start_time).total_seconds()))
return types.ModelTypes(
saved_model=saved_model,
keras_model=keras_model,
eval_saved_model=eval_saved_model)
def testEvaluateExistingMetricsBasicForUnsupervisedModel(self):
# Test that we can export and load unsupervised models (models which
# don't take a labels parameter in their model_fn).
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (
fixed_prediction_estimator_no_labels
.simple_fixed_prediction_estimator_no_labels(None,
temp_eval_export_dir))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeExample(prediction=1.0)
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example1.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
example2 = self._makeExample(prediction=0.0)
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example2.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(metric_values, {
'average_loss': 0.5,
})
def testEvaluateExistingMetricsCustomEstimatorBasic(self):
# Custom estimator aims to predict age * 3 + 1
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = custom_estimator.simple_custom_estimator(
None, temp_eval_export_dir)
example1 = example_pb2.Example()
example1.features.feature['age'].float_list.value[:] = [1.0]
example1.features.feature['label'].float_list.value[:] = [3.0]
eval_saved_model = load.EvalSavedModel(eval_export_dir)
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example1.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
example2 = example_pb2.Example()
example2.features.feature['age'].float_list.value[:] = [2.0]
example2.features.feature['label'].float_list.value[:] = [7.0]
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example2.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
# We don't control the trained model's weights fully, but it should
# predict close to what it aims to. The "target" mean prediction is 5.5.
self.assertIn('mean_prediction', metric_values)
self.assertGreater(metric_values['mean_prediction'], 5.4)
self.assertLess(metric_values['mean_prediction'], 5.6)
# The "target" mean absolute error is 0.5
self.assertIn('mean_absolute_error', metric_values)
self.assertGreater(metric_values['mean_absolute_error'], 0.4)
self.assertLess(metric_values['mean_absolute_error'], 0.6)
self.assertHasKeyWithValueAlmostEqual(metric_values, 'mean_label', 5.0)
def testEvaluateExistingMetricsBasicForControlDependencyEstimator(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (
control_dependency_estimator.simple_control_dependency_estimator(
None, temp_eval_export_dir))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeExample(prediction=0.9,
label=0.0,
fixed_float=1.0,
fixed_string='apple',
fixed_int=2,
var_float=10.0,
var_string='banana',
var_int=20).SerializeToString()
example2 = self._makeExample(prediction=0.1,
label=0.0,
fixed_float=5.0,
fixed_string='avocado',
fixed_int=6,
var_float=50.0,
var_string='berry',
var_int=60).SerializeToString()
eval_saved_model.metrics_reset_update_get_list([example1, example2])
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values, {
'control_dependency_on_fixed_float': 1.0,
'control_dependency_on_var_float': 10.0,
'control_dependency_on_actual_label': 100.0,
'control_dependency_on_var_int_label': 1000.0,
'control_dependency_on_prediction': 10000.0,
})
def benchmarkEvalSavedModelPredict(self):
"""Benchmark using the EvalSavedModel to make predictions.
Runs EvalSavedModel.predict_list and records the wall time taken.
"""
batch_size = 1000
eval_saved_model = load.EvalSavedModel(
path=self._dataset.tfma_saved_model_path(),
include_default_metrics=True)
records = self._dataset.read_raw_dataset(deserialize=False,
limit=MAX_NUM_EXAMPLES)
start = time.time()
for batch in benchmark_utils.batched_iterator(records, batch_size):
eval_saved_model.predict_list(batch)
end = time.time()
delta = end - start
self.report_benchmark(
iters=1,
wall_time=delta,
extras={
"batch_size": batch_size,
"num_examples":
self._dataset.num_examples(limit=MAX_NUM_EXAMPLES)
})
def testEvaluateExistingMetricsBasic(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = multi_head.simple_multi_head(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir)
example1 = self._makeMultiHeadExample('english')
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example1.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
example2 = self._makeMultiHeadExample('chinese')
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example2.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values, {
'accuracy/english_head': 1.0,
'accuracy/chinese_head': 1.0,
'accuracy/other_head': 1.0,
'auc/english_head': 1.0,
'auc/chinese_head': 1.0,
'auc/other_head': 1.0,
'label/mean/english_head': 0.5,
'label/mean/chinese_head': 0.5,
'label/mean/other_head': 0.0
})
def testPredictListMultipleExamplesPerInputModelNoExampleInInput(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (fake_multi_examples_per_input_estimator.
fake_multi_examples_per_input_estimator(
None, temp_eval_export_dir))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
fetched_list = eval_saved_model.predict_list(['0', '0'])
self.assertFalse(fetched_list)
def testEvaluateWithAdditionalMetricsBasic(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = multi_head.simple_multi_head(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir)
_, prediction_dict, label_dict = (
eval_saved_model.get_features_predictions_labels_dicts())
with eval_saved_model.graph_as_default():
metric_ops = {}
value_op, update_op = tf.metrics.mean_absolute_error(
label_dict['english_head'][0][0],
prediction_dict['english_head/probabilities'][0][1])
metric_ops['mean_absolute_error/english_head'] = (value_op,
update_op)
value_op, update_op = tf.contrib.metrics.count(
prediction_dict['english_head/logits'])
metric_ops['example_count/english_head'] = (value_op, update_op)
eval_saved_model.register_additional_metric_ops(metric_ops)
example1 = self._makeMultiHeadExample('english')
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example1.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
example2 = self._makeMultiHeadExample('chinese')
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example2.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
# Check that the original metrics are still there.
self.assertDictElementsAlmostEqual(
metric_values, {
'accuracy/english_head': 1.0,
'accuracy/chinese_head': 1.0,
'accuracy/other_head': 1.0,
'auc/english_head': 1.0,
'auc/chinese_head': 1.0,
'auc/other_head': 1.0,
'label/mean/english_head': 0.5,
'label/mean/chinese_head': 0.5,
'label/mean/other_head': 0.0
})
# Check the added metrics.
# We don't control the trained model's weights fully, but it should
# predict probabilities > 0.7.
self.assertIn('mean_absolute_error/english_head', metric_values)
self.assertLess(metric_values['mean_absolute_error/english_head'], 0.3)
self.assertHasKeyWithValueAlmostEqual(metric_values,
'example_count/english_head',
2.0)
def _sharedTestForPredictListMultipleExamplesPerInputModel(
self, use_legacy, use_iterator):
temp_eval_export_dir = self._getEvalExportDir()
if use_legacy:
_, eval_export_dir = (
fake_multi_examples_per_input_estimator.
legacy_fake_multi_examples_per_input_estimator(
None, temp_eval_export_dir))
else:
_, eval_export_dir = (fake_multi_examples_per_input_estimator.
fake_multi_examples_per_input_estimator(
None, temp_eval_export_dir,
use_iterator))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
fetched_list = eval_saved_model.predict_list(
[b'0', b'1', b'3', b'0', b'2'])
self.assertEqual(6, len(fetched_list))
input_index = []
example_count = []
labels = []
predictions = []
intra_input_index = []
annotation = []
def _check_and_append_feature(feature_name, one_fetch, feature_values):
self.assertEqual((1, ),
one_fetch.values['features'][feature_name].shape)
feature_values.append(
one_fetch.values['features'][feature_name][0])
for fetched in fetched_list:
_check_and_append_feature('input_index', fetched, input_index)
_check_and_append_feature('example_count', fetched, example_count)
_check_and_append_feature('intra_input_index', fetched,
intra_input_index)
_check_and_append_feature('annotation', fetched, annotation)
self.assertAllEqual((1, ), fetched.values['labels'].shape)
labels.append(fetched.values['labels'])
self.assertAllEqual((1, ), fetched.values['predictions'].shape)
predictions.append(fetched.values['predictions'])
self.assertSequenceEqual([1, 3, 3, 3, 2, 2], example_count)
self.assertSequenceEqual([1, 2, 2, 2, 4, 4], input_index)
self.assertSequenceEqual([0, 0, 1, 2, 0, 1], intra_input_index)
self.assertAllEqual([
b'raw_input: 1; index: 0', b'raw_input: 3; index: 0',
b'raw_input: 3; index: 1', b'raw_input: 3; index: 2',
b'raw_input: 2; index: 0', b'raw_input: 2; index: 1'
], annotation)
self.assertSequenceEqual([1, 2, 2, 2, 4, 4], labels)
self.assertSequenceEqual([1, 2, 2, 2, 4, 4], predictions)
def testPredictListOutOfRangeInputRefs(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (
fake_multi_examples_per_input_estimator.
bad_multi_examples_per_input_estimator_out_of_range_input_refs(
None, temp_eval_export_dir))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
with self.assertRaisesRegexp(ValueError,
'An index in input_refs is out of range'):
eval_saved_model.predict_list(['1'])
def testPredictListMisalignedInputRef(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (
fake_multi_examples_per_input_estimator.
bad_multi_examples_per_input_estimator_misaligned_input_refs(
None, temp_eval_export_dir))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
with self.assertRaisesRegexp(ValueError,
'input_refs should be batch-aligned'):
eval_saved_model.predict_list(['1'])
def testPredictListMultipleExamplesPerInputModel(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (fake_multi_examples_per_input_estimator.
fake_multi_examples_per_input_estimator(
None, temp_eval_export_dir))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
fpls = eval_saved_model.predict_list([b'0', b'1', b'3', b'0', b'2'])
self.assertEqual(6, len(fpls))
input_index = []
example_count = []
labels = []
predictions = []
intra_input_index = []
annotation = []
def _check_and_append_feature(feature_name, one_fpl, feature_values):
self.assertEqual(
(1, ),
one_fpl.features[feature_name][encoding.NODE_SUFFIX].shape)
feature_values.append(
one_fpl.features[feature_name][encoding.NODE_SUFFIX][0])
for fpl in fpls:
_check_and_append_feature('input_index', fpl, input_index)
_check_and_append_feature('example_count', fpl, example_count)
_check_and_append_feature('intra_input_index', fpl,
intra_input_index)
_check_and_append_feature('annotation', fpl, annotation)
self.assertAllEqual((1, ), fpl.labels[
encoding.DEFAULT_LABELS_DICT_KEY][encoding.NODE_SUFFIX].shape)
labels.append(fpl.labels[encoding.DEFAULT_LABELS_DICT_KEY][
encoding.NODE_SUFFIX][0])
self.assertAllEqual(
(1, ),
fpl.predictions['predictions'][encoding.NODE_SUFFIX].shape)
predictions.append(
fpl.predictions['predictions'][encoding.NODE_SUFFIX][0])
self.assertSequenceEqual([1, 3, 3, 3, 2, 2], example_count)
self.assertSequenceEqual([1, 2, 2, 2, 4, 4], input_index)
self.assertSequenceEqual([0, 0, 1, 2, 0, 1], intra_input_index)
self.assertAllEqual([
b'raw_input: 1; index: 0', b'raw_input: 3; index: 0',
b'raw_input: 3; index: 1', b'raw_input: 3; index: 2',
b'raw_input: 2; index: 0', b'raw_input: 2; index: 1'
], annotation)
self.assertSequenceEqual([1, 2, 2, 2, 4, 4], labels)
self.assertSequenceEqual([1, 2, 2, 2, 4, 4], predictions)
def construct(): # pylint: disable=invalid-name
"""Function for constructing a EvalSavedModel."""
start_time = datetime.datetime.now()
result = load.EvalSavedModel(eval_saved_model_path,
include_default_metrics)
if add_metrics_callbacks:
result.register_add_metric_callbacks(add_metrics_callbacks)
result.graph_finalize()
end_time = datetime.datetime.now()
model_load_seconds.update(
int((end_time - start_time).total_seconds()))
return result
def testGetAndSetMetricVariables(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = multi_head.simple_multi_head(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir)
_, prediction_dict, _ = (
eval_saved_model.get_features_predictions_labels_dicts())
with eval_saved_model.graph_as_default():
metric_ops = {}
value_op, update_op = tf.contrib.metrics.count(
prediction_dict['english_head/logits'])
metric_ops['example_count/english_head'] = (value_op, update_op)
eval_saved_model.register_additional_metric_ops(metric_ops)
example1 = self._makeMultiHeadExample('english')
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example1.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values, {
'label/mean/english_head': 1.0,
'label/mean/chinese_head': 0.0,
'label/mean/other_head': 0.0,
'example_count/english_head': 1.0
})
metric_variables = eval_saved_model.get_metric_variables()
example2 = self._makeMultiHeadExample('chinese')
features_predictions_labels = self.predict_injective_single_example(
eval_saved_model, example2.SerializeToString())
eval_saved_model.perform_metrics_update(features_predictions_labels)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values, {
'label/mean/english_head': 0.5,
'label/mean/chinese_head': 0.5,
'label/mean/other_head': 0.0,
'example_count/english_head': 2.0
})
# Now set metric variables to what they were after the first example.
eval_saved_model.set_metric_variables(metric_variables)
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(
metric_values, {
'label/mean/english_head': 1.0,
'label/mean/chinese_head': 0.0,
'label/mean/other_head': 0.0,
'example_count/english_head': 1.0
})
def testAggregateOverallSlice(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = linear_classifier.simple_linear_classifier(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir)
eval_shared_model = self.createTestEvalSharedModel(
eval_saved_model_path=eval_export_dir)
with beam.Pipeline() as pipeline:
example1 = self._makeExample(age=3.0,
language='english',
label=1.0)
example2 = self._makeExample(age=3.0,
language='chinese',
label=0.0)
example3 = self._makeExample(age=4.0,
language='english',
label=1.0)
example4 = self._makeExample(age=5.0,
language='chinese',
label=0.0)
predict_result = eval_saved_model.as_features_predictions_labels(
eval_saved_model.predict_list([
example1.SerializeToString(),
example2.SerializeToString(),
example3.SerializeToString(),
example4.SerializeToString()
]))
metrics, _ = (
pipeline
| 'CreateTestInput' >> beam.Create(
create_test_input(predict_result, [()]))
| 'ComputePerSliceMetrics' >> aggregate.ComputePerSliceMetrics(
eval_shared_model=eval_shared_model, desired_batch_size=3))
def check_result(got):
self.assertEqual(1, len(got), 'got: %s' % got)
slice_key, metrics = got[0]
self.assertEqual(slice_key, ())
self.assertDictElementsAlmostEqual(
metrics, {
'accuracy': 1.0,
'label/mean': 0.5,
'my_mean_age': 3.75,
'my_mean_age_times_label': 1.75,
})
util.assert_that(metrics, check_result)
def construct_fn(): # pylint: disable=invalid-name
"""Function for constructing shared models."""
# If we are evaluating on TPU, initialize the TPU.
# TODO(b/143484017): Add model warmup for TPU.
if tf.saved_model.TPU in tags:
tf.tpu.experimental.initialize_tpu_system()
if (model_type == constants.TF_ESTIMATOR
and eval_constants.EVAL_TAG in tags):
model = load.EvalSavedModel(
eval_saved_model_path,
include_default_metrics,
additional_fetches=additional_fetches,
blacklist_feature_fetches=blacklist_feature_fetches,
tags=tags)
if add_metrics_callbacks:
model.register_add_metric_callbacks(add_metrics_callbacks)
model.graph_finalize()
elif model_type == constants.TF_KERAS:
model = tf.keras.models.load_model(eval_saved_model_path)
elif model_type == constants.TF_LITE:
# The tf.lite.Interpreter is not thread-safe so we only load the model
# file's contents and leave construction of the Interpreter up to the
# PTransform using it.
model_filename = os.path.join(eval_saved_model_path,
_TFLITE_FILE_NAME)
with tf.io.gfile.GFile(model_filename, 'rb') as model_file:
model_bytes = model_file.read()
# If a SavedModel is present in the same directory, load it as well.
# This allows the SavedModel to be used for computing the
# Transformed Features and Labels.
if (tf.io.gfile.exists(
os.path.join(eval_saved_model_path,
tf.saved_model.SAVED_MODEL_FILENAME_PB))
or tf.io.gfile.exists(
os.path.join(
eval_saved_model_path,
tf.saved_model.SAVED_MODEL_FILENAME_PBTXT))):
model = tf.compat.v1.saved_model.load_v2(eval_saved_model_path,
tags=tags)
model.contents = model_bytes
else:
model = ModelContents(model_bytes)
elif model_type == constants.TF_JS:
# We invoke TFJS models via a subprocess call. So this call is no-op.
return None
else:
model = tf.compat.v1.saved_model.load_v2(eval_saved_model_path,
tags=tags)
return model
def benchmarkEvalSavedModelMetricsResetUpdateGetList(self):
"""Benchmark using the EvalSavedModel to compute metrics.
Runs EvalSavedModel.metrics_reset_update_get_list and records the wall time
taken.
"""
batch_size = 1000
eval_saved_model = load.EvalSavedModel(
path=self._dataset.tfma_saved_model_path(),
include_default_metrics=True)
records = self._dataset.read_raw_dataset(
deserialize=False, limit=self._max_num_examples())
start = time.time()
accumulators = []
for batch in benchmark_utils.batched_iterator(records, batch_size):
accumulators.append(
eval_saved_model.metrics_reset_update_get_list(batch))
end = time.time()
delta = end - start
# Sanity check
metric_variables_sum = accumulators[0]
for acc in accumulators[1:]:
if len(metric_variables_sum) != len(acc):
raise ValueError(
"all metric variable value lists should have the same length, but "
"got lists with different lengths: %d and %d" %
(len(metric_variables_sum), len(acc)))
metric_variables_sum = [
a + b for a, b in zip(metric_variables_sum, acc)
]
metrics = eval_saved_model.metrics_set_variables_and_get_values(
metric_variables_sum)
if "average_loss" not in metrics:
raise ValueError(
"metrics should contain average_loss metric, but it did not. "
"metrics were: %s" % metrics)
self.report_benchmark(
iters=1,
wall_time=delta,
extras={
"batch_size":
batch_size,
"num_examples":
self._dataset.num_examples(limit=self._max_num_examples())
})
def testEvaluateWithOnlyAdditionalMetricsBasic(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = multi_head.simple_multi_head(
None, temp_eval_export_dir)
eval_saved_model = load.EvalSavedModel(eval_export_dir,
include_default_metrics=False)
_, prediction_dict, label_dict = (
eval_saved_model.get_features_predictions_labels_dicts())
with eval_saved_model.graph_as_default():
metric_ops = {}
value_op, update_op = tf.compat.v1.metrics.mean_absolute_error(
label_dict['english_head'][0][0],
prediction_dict['english_head/probabilities'][0][1])
metric_ops['mean_absolute_error/english_head'] = (value_op,
update_op)
value_op, update_op = metrics.total(
tf.shape(input=prediction_dict['english_head/logits'])[0])
metric_ops['example_count/english_head'] = (value_op, update_op)
eval_saved_model.register_additional_metric_ops(metric_ops)
example1 = self._makeMultiHeadExample('english').SerializeToString()
example2 = self._makeMultiHeadExample('chinese').SerializeToString()
eval_saved_model.metrics_reset_update_get_list([example1, example2])
metric_values = eval_saved_model.get_metric_values()
# Check that the original metrics are not there.
self.assertNotIn('accuracy/english_head', metric_values)
self.assertNotIn('accuracy/chinese_head', metric_values)
self.assertNotIn('accuracy/other_head', metric_values)
self.assertNotIn('auc/english_head', metric_values)
self.assertNotIn('auc/chinese_head', metric_values)
self.assertNotIn('auc/other_head', metric_values)
self.assertNotIn('label/mean/english_head', metric_values)
self.assertNotIn('label/mean/chinese_head', metric_values)
self.assertNotIn('label/mean/other_head', metric_values)
# Check the added metrics.
# We don't control the trained model's weights fully, but it should
# predict probabilities > 0.7.
self.assertIn('mean_absolute_error/english_head', metric_values)
self.assertLess(metric_values['mean_absolute_error/english_head'], 0.3)
self.assertHasKeyWithValueAlmostEqual(metric_values,
'example_count/english_head',
2.0)
def testEvaluateExistingMetricsCSVInputBasic(self):
temp_eval_export_dir = self._getEvalExportDir()
_, eval_export_dir = (
csv_linear_classifier.simple_csv_linear_classifier(
None, temp_eval_export_dir))
eval_saved_model = load.EvalSavedModel(eval_export_dir)
eval_saved_model.metrics_reset_update_get_list(
['3.0,english,1.0', '3.0,chinese,0.0'])
metric_values = eval_saved_model.get_metric_values()
self.assertDictElementsAlmostEqual(metric_values, {
'accuracy': 1.0,
'auc': 1.0
})