def test_merge_zero_subregions(self):
aux = TEST_AUX_DATA.copy()
data_source = DataSource()
record = {"country_code": "AA"}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, "AA")
def test_merge_by_key(self):
aux = TEST_AUX_DATA.copy()
data_source = DataSource()
record = {"key": "AE_1_2"}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, record["key"])
def test_merge_no_match(self):
aux = TEST_AUX_DATA.copy()
data_source = DataSource()
record = {"country_code": "__"}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertTrue(key is None)
def test_merge_one_subregion(self):
aux = TEST_AUX_DATA.copy()
pipeline = DataSource()
record = {"country_code": "AB"}
key = pipeline.merge(record, {"metadata": aux})
self.assertTrue(key is None)
record = {"country_code": "AB", "subregion1_code": None}
key = pipeline.merge(record, {"metadata": aux})
self.assertEqual(key, "AB")
record = {"country_code": "AB", "subregion1_code": "1"}
key = pipeline.merge(record, {"metadata": aux})
self.assertEqual(key, "AB_1")
def test_merge_one_subregion(self):
aux = TEST_AUX_DATA.copy()
data_source = DataSource()
record = {"country_code": "AB"}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertTrue(key is None)
record = {"country_code": "AB", "subregion1_code": None}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, "AB")
record = {"country_code": "AB", "subregion1_code": "1"}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, "AB_1")
def test_merge_null_vs_empty(self):
aux = TEST_AUX_DATA.copy()
data_source = DataSource()
# Only one record has null region1_code
record = {"country_code": "AD", "subregion1_code": None}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, "AD")
# Empty means "do not compare" rather than "filter non-null"
record = {"country_code": "AD", "subregion1_code": ""}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, None)
# There are multiple records that fit this merge, so it's ambiguous
record = {"country_code": "AD", "subregion1_code": "1"}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, None)
# Match fails because subregion1_code is not null
record = {
"country_code": "AD",
"subregion1_code": None,
"subregion2_code": "1"
}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, None)
# Match is exact so the merge is unambiguous
record = {
"country_code": "AD",
"subregion1_code": "1",
"subregion2_code": "1"
}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, "AD_1_1")
# Even though we don't have subregion1_code, there's only one record that matches
record = {
"country_code": "AD",
"subregion1_code": "",
"subregion2_code": "1"
}
key = data_source.merge(record, {"metadata": aux},
keys=TEST_METADATA_KEYS)
self.assertEqual(key, "AD_1_1")
model_dir = parsed_args.job_dir
FileLogger("TEST_PREDICT", model_dir)
data_utils = DataUtils()
conf_parser = TrainDevConfigParser(
data_utils.get_file_contents(
os.path.join(os.path.dirname(task_mnist.__file__), "config.json")
)
)
tf_feature_cols = TfFeatureColumns(conf_parser)
ds_test = DataSource(
_tf_feature_cols=tf_feature_cols,
_ds_class=pred_data,
_dsutil=data_utils,
force_test=True,
)
if ds_test.is_empty:
ds_test = DataSource(
_tf_feature_cols=tf_feature_cols,
_ds_class="train",
_dsutil=data_utils,
force_test=True,
)
tf.logging.warn(
"prediction dataset is empty; will use training dataset for prediction instead!"
)
_handle = Tester(
model_fn=resolve_model_type(conf_parser.model_type),
def test_merge_zero_subregions(self):
aux = TEST_AUX_DATA.copy()
pipeline = DataSource()
record = {"country_code": "AA"}
key = pipeline.merge(record, {"metadata": aux})
self.assertEqual(key, "AA")
def test_merge_by_key(self):
aux = TEST_AUX_DATA.copy()
pipeline = DataSource()
record = {"key": "AE_1_2"}
key = pipeline.merge(record, {"metadata": aux})
self.assertEqual(key, record["key"])
def test_merge_no_match(self):
aux = TEST_AUX_DATA.copy()
pipeline = DataSource()
record = {"country_code": "__"}
key = pipeline.merge(record, {"metadata": aux})
self.assertTrue(key is None)
if parsed_args.job_dir:
model_dir = parsed_args.job_dir
FileLogger("TRAIN_EVAL", model_dir)
data_utils = DataUtils()
conf_parser = TrainDevConfigParser(
data_utils.get_file_contents(
os.path.join(os.path.dirname(task_inertial_har.__file__), "config.json")
)
)
tf_feature_cols = TfFeatureColumns(conf_parser)
ds_train = DataSource(
_tf_feature_cols=tf_feature_cols, _ds_class="train", _dsutil=data_utils
)
# train data_sources can not be empty
if ds_train.is_empty:
raise RuntimeError("training dataset can not be empty!")
# evaluation dataset can be empty, yet a warning will be given
ds_eval = DataSource(
_tf_feature_cols=tf_feature_cols, _ds_class="eval", _dsutil=data_utils
)
if ds_eval.is_empty:
ds_eval = DataSource(
_tf_feature_cols=tf_feature_cols,
_ds_class="train",
_dsutil=data_utils,
force_test=True,
def __init__(
self,
model_fn: Callable[[
dict,
dict,
tf.contrib.training.HParams,
str,
list,
list,
list,
tf.estimator.RunConfig,
], Tuple[dict, tf.Tensor, tf.Operation, dict, list, list], ],
train_data_source: DataSource,
eval_data_source: DataSource,
hyper_params: Union[tf.contrib.training.HParams, dict] = None,
hooks: list = None,
model_dir: str = "model",
date_time_str: str = None,
export_models_as_text: bool = False,
) -> None:
"""Initialize a Trainer
Arguments:
model_fn {Callable[[dict,dict,tf.contrib.training.HParams,str,list,list,list,tf.estimator.RunConfig,],Tuple[dict, tf.Tensor, tf.Operation, dict, list, list],]} -- A model function.
train_data_source {DataSource} -- The DataSource object of training dataset.
eval_data_source {DataSource} -- The DataSource object of evaluation dataset.
Keyword Arguments:
hyper_params {Union[tf.contrib.training.HParams, dict]} -- Hyper parameters. (default: {None})
hooks {list} -- A list of custom hooks. (default: {None})
model_dir {str} -- The model directory. (default: {"model"})
date_time_str {str} -- A date and time string in the format of "yyyymmdd_hhmmss" (default: {None})
export_models_as_text {bool} -- Export readable model if True. (default: {False})
"""
# hyper_params
if hyper_params is None:
hyper_params = {}
hyper_params = tf.contrib.training.HParams(**hyper_params)
self.hyper_params = join_hparams(
default_general_hparams(),
hyper_params) # type: tf.contrib.training.HParams
# run_config
# TODO: make run_config configurable
self.model_dir = model_dir
self.run_config = default_run_config(
model_dir=model_dir,
save_summary_steps=self.hyper_params.get(
"summaryFrequency", default=100), # unit: steps
save_checkpoints_mins=self.hyper_params.get(
"checkpointFrequency", default=5), # unit: minutes
keep_checkpoint_max=self.hyper_params.get("keepMaxCheckpoint",
default=5),
)
# date and time string
self.date_time_str = date_time_str
# default eval metrics output path
self.eval_metric_output_path = ""
if date_time_str is None:
tf.logging.warning(
"missing date and time info as input params for training job")
self.eval_metric_output_path = os.path.join(
model_dir,
"eval_metric_{}.json".format(
datetime.datetime.now().strftime("%Y%m%d_%H%M%S")),
)
else:
self.eval_metric_output_path = os.path.join(
model_dir, "eval_metric_{}.json".format(date_time_str))
# TODO: extend the functions via different hooks
self.hooks = hooks
# set train and eval data sources
self.train_data_source = train_data_source
self.eval_data_source = eval_data_source
# model_fn
self.model_fn = model_fn
# feature columns
self.only_feature_columns = (
train_data_source.tf_feature_cols.only_feature_columns)
# self.id_feature_columns = train_data_source.tf_feature_cols.id_feature_columns
# self.label_feature_columns = train_data_source.tf_feature_cols.label_feature_columns
# trainspec
self.train_spec = tf.estimator.TrainSpec(
input_fn=lambda: train_data_source.input_fn(
batch_size=self.hyper_params.batchSize),
max_steps=self.hyper_params.maxSteps,
)
# Serving input function
feature_spec = tf.feature_column.make_parse_example_spec(
# self.train_data_source.tf_feature_cols.id_feature_columns
# + self.train_data_source.tf_feature_cols.only_feature_columns
self.train_data_source.tf_feature_cols.export_feature_columns)
serving_input_fn = tf.estimator.export.build_parsing_serving_input_receiver_fn(
feature_spec)
self.export_models_as_text = export_models_as_text
best_exporter = tf.estimator.BestExporter(
name="best_exporter",
serving_input_receiver_fn=serving_input_fn,
as_text=self.export_models_as_text,
)
final_exporter = tf.estimator.FinalExporter(
name="final_exporter",
serving_input_receiver_fn=serving_input_fn,
as_text=self.export_models_as_text,
)
# estimator
self.estimator = self.model_fn(
self.only_feature_columns,
self.run_config,
self.hyper_params,
train_data_source.tf_feature_cols,
)
# evalspec
throttle_secs = self.hyper_params.get("minEvalFrequency",
default=10) # unit: minutes
self.eval_spec = tf.estimator.EvalSpec(
input_fn=eval_data_source.input_fn,
steps=None,
exporters=[final_exporter, best_exporter],
start_delay_secs=0,
throttle_secs=throttle_secs * 60
# hooks=[tf_debug.DumpingDebugHook("/tmp/tfdb_dump1")]
)
def model_fn(
features: dict,
labels: dict,
mode: str,
params: tf.contrib.training.HParams,
config: tf.estimator.RunConfig,
) -> tf.estimator.EstimatorSpec:
"""Model Function
Arguments:
features {dict} -- A dict of features with feature names (str) as keys.
labels {dict} -- A dict of labels with feature names (str) as keys.
mode {str} -- one of tf.estimator.ModeKeys.(TRAIN|EVAL|PREDICT).
params {tf.contrib.training.HParams} -- hyper parameters.
config {tf.estimator.RunConfig} -- run config
Returns:
tf.estimator.EstimatorSpec -- Estimator specification
"""
tf.logging.info("model_fn is called with mode={}".format(
str(mode)))
# hold Ids
id_holder = {}
id_feature_columns = tf_feature_col_obj.id_feature_columns
if id_feature_columns is not None:
with tf.variable_scope("ID_holder"):
for id_fc in id_feature_columns:
_id_fc_key = TfFeatureColumns.feature_column_key(id_fc)
id_holder[
_id_fc_key] = DataSource.try_sparse2dense_tensor(
features[_id_fc_key])
del features[_id_fc_key]
# Call the actual model function!
(
predictions,
loss,
train_op,
eval_metric_ops,
training_hooks,
evaluation_hooks,
) = user_model_fn(
only_features=features,
labels=labels,
hparams=params,
mode=mode,
only_feature_columns=only_feature_columns,
label_feature_columns=tf_feature_col_obj.label_feature_columns,
no_export_columns=tf_feature_col_obj.no_export_feature_columns,
config=config,
)
# wrap exports
exports = {
"predictions": tf.estimator.export.PredictOutput(predictions)
}
# append Ids to prediction result
for key in id_holder.keys():
predictions[key] = id_holder[key]
return tf.estimator.EstimatorSpec(
mode=mode,
predictions=predictions,
loss=loss,
train_op=train_op,
eval_metric_ops=eval_metric_ops,
export_outputs=exports,
training_hooks=training_hooks,
evaluation_hooks=evaluation_hooks,
)