def test_evaluate_calculates_average_loss_with_weights(self):
losses = [7.0, 9.0, 8.0]
weights = [10, 2, 1.5]
inputs = zip(losses, weights)
outputs = [{"loss": torch.Tensor([loss]), "batch_weight": torch.Tensor([weight])}
for loss, weight in inputs]
iterator = DummyIterator(outputs)
metrics = evaluate(DummyModel(), None, iterator, -1, "batch_weight")
self.assertAlmostEqual(metrics["loss"], (70 + 18 + 12)/13.5)
def test_evaluate_calculates_average_loss_with_weights(self):
losses = [7.0, 9.0, 8.0]
weights = [10, 2, 1.5]
inputs = zip(losses, weights)
outputs = [
{"loss": torch.Tensor([loss]), "batch_weight": torch.Tensor([weight])}
for loss, weight in inputs
]
data_loader = DummyDataLoader(outputs)
metrics = evaluate(DummyModel(), data_loader, -1, "batch_weight")
assert metrics["loss"] == pytest.approx((70 + 18 + 12) / 13.5)
def evaluate_from_args(args: argparse.Namespace) -> Dict[str, Any]:
# Disable some of the more verbose logging statements
logging.getLogger('allennlp.common.params').disabled = True
logging.getLogger('allennlp.nn.initializers').disabled = True
logging.getLogger('allennlp.modules.token_embedders.embedding').setLevel(
logging.INFO)
# Load from archive
archive = load_archive(args.archive_file, args.cuda_device, args.overrides,
args.weights_file)
config = archive.config
prepare_environment(config)
model = archive.model
model.eval()
# Set the model to error analysis mode
model.error_analysis = True
# Load the evaluation data
# Try to use the validation dataset reader if there is one - otherwise fall back
# to the default dataset_reader used for both training and validation.
validation_dataset_reader_params = config.pop('validation_dataset_reader',
None)
if validation_dataset_reader_params is not None:
dataset_reader = DatasetReader.from_params(
validation_dataset_reader_params)
else:
dataset_reader = DatasetReader.from_params(
config.pop('dataset_reader'))
evaluation_data_path = args.evaluation_data_file
logger.info("Reading evaluation data from %s", evaluation_data_path)
instances = dataset_reader.read(evaluation_data_path)
iterator = DataIterator.from_params(config.pop("iterator"))
iterator.index_with(model.vocab)
metrics = evaluate(model, instances, iterator, args.cuda_device)
logger.info("Finished evaluating.")
print("All Metrics")
print("=" * 79)
for key, metric in metrics.items():
print("{}\t{}".format(key, metric))
# Turn off error analysis mode
model.error_analysis = False
return metrics
def evaluating(**params):
param_is_exist(["model_file", "input_file", "include_package"], params)
for package_name in params["include_package"]:
import_submodules(package_name)
cuda_device = params["cuda_device"] if "cuda_device" in params else -1
overrides = params["overrides"] if "overrides" in params else ""
weights_file = params["weights_file"] if "weights_file" in params else ""
archive = load_archive(params["model_file"], cuda_device, overrides,
weights_file)
config = archive.config
prepare_environment(config)
model = archive.model
model.eval()
# Load the evaluation data
# Try to use the validation dataset reader if there is one - otherwise fall back
# to the default dataset_reader used for both training and validation.
validation_dataset_reader_params = config.pop('validation_dataset_reader',
None)
if validation_dataset_reader_params is not None:
dataset_reader = DatasetReader.from_params(
validation_dataset_reader_params)
else:
dataset_reader = DatasetReader.from_params(
config.pop('dataset_reader'))
evaluation_data_path = params["input_file"]
logger.info("Reading evaluation data from %s", evaluation_data_path)
instances = dataset_reader.read(evaluation_data_path)
iterator_params = config.pop("validation_iterator", None)
if iterator_params is None:
iterator_params = config.pop("iterator")
iterator = DataIterator.from_params(iterator_params)
iterator.index_with(model.vocab)
metrics = evaluate(model, instances, iterator, cuda_device)
logger.info("Finished evaluating.")
logger.info("Metrics:")
for key, metric in metrics.items():
logger.info("%s: %s", key, metric)
return metrics
def train_model(params,
serialization_dir,
file_friendly_logging=False,
recover=False,
model="bidaf"):
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool`, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
"""
print("Starting training models...")
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover)
prepare_global_logging(serialization_dir, file_friendly_logging)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
all_datasets = datasets_from_params(params)
print("get all of the dataset.")
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
print("creatig vocaburary...")
logger.info("Creating a vocabulary using %s data.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
if model == "self":
model = BiDAFSelfAttention.from_params(vocab, params.pop("model"))
else:
model = BidirectionalAttentionFlow.from_params(vocab,
params.pop("model"))
print("Initialized a BiDAF model.")
# This is for debugging.
print(model)
print(serialization_dir)
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
print("create iterator")
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
print("initalizing a trainer")
trainer_params = params.pop("trainer")
trainer = Trainer.from_params(model, serialization_dir, iterator,
train_data, validation_data, trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model,
test_data,
iterator,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"),
"w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
def train_model(params: Params,
serialization_dir: str,
results_fn: str,
file_friendly_logging: bool = False,
recover: bool = False,
force: bool = False) -> Tuple[Model, Dict[str, Any]]:
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover, force)
prepare_global_logging(serialization_dir, file_friendly_logging)
cuda_device = params.params.get('trainer').get('cuda_device', -1)
if isinstance(cuda_device, list):
for device in cuda_device:
check_for_gpu(device)
else:
check_for_gpu(cuda_device)
params.to_file(os.path.join(serialization_dir, CONFIG_NAME))
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info(
"From dataset instances, %s will be considered for vocabulary creation.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
model = Model.from_params(vocab=vocab, params=params.pop('model'))
# Initializing the model can have side effect of expanding the vocabulary
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(
validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
held_out_iterator_params = params.pop("held_out_iterator", None)
if held_out_iterator_params:
held_out_iterator = DataIterator.from_params(held_out_iterator_params)
held_out_iterator.index_with(vocab)
else:
held_out_iterator = None
train_data = all_datasets['train']
held_out_train_data = all_datasets.get('held_out_train')
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
frozen_parameter_names, tunable_parameter_names = \
get_frozen_and_tunable_parameter_names(model)
logger.info("Following parameters are Frozen (without gradient):")
for name in frozen_parameter_names:
logger.info(name)
logger.info("Following parameters are Tunable (with gradient):")
for name in tunable_parameter_names:
logger.info(name)
trainer_choice = trainer_params.pop_choice("type",
Trainer.list_available(),
default_to_first_choice=True)
trainer = Trainer.by_name(trainer_choice).from_params(
model=model,
serialization_dir=serialization_dir,
iterator=iterator,
train_data=train_data,
held_out_train_data=held_out_train_data,
validation_data=validation_data,
params=trainer_params,
validation_iterator=validation_iterator,
held_out_iterator=held_out_iterator)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info(
"The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model,
test_data,
validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0] # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
dump_metrics(os.path.join(results_dir, results_fn), metrics, log=True)
return best_model, metrics
def train_model(params: Params,
serialization_dir: str,
file_friendly_logging: bool = False,
recover: bool = False) -> Model:
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool`, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover)
prepare_global_logging(serialization_dir, file_friendly_logging)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("Creating a vocabulary using %s data.", ", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset
if key in datasets_for_vocab_creation))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
model = Model.from_params(vocab, params.pop('model'))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
trainer = Trainer.from_params(model,
serialization_dir,
iterator,
train_data,
validation_data,
trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info("Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model, test_data, iterator, cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info("To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"), "w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
def fine_tune_model(model: Model,
params: Params,
serialization_dir: str,
extend_vocab: bool = False,
file_friendly_logging: bool = False) -> Model:
"""
Fine tunes the given model, using a set of parameters that is largely identical to those used
for :func:`~allennlp.commands.train.train_model`, except that the ``model`` section is ignored,
if it is present (as we are already given a ``Model`` here).
The main difference between the logic done here and the logic done in ``train_model`` is that
here we do not worry about vocabulary construction or creating the model object. Everything
else is the same.
Parameters
----------
archive : ``Archive``
A saved model archive that is the result of running the ``train`` command.
train_data_path : ``str``
Path to the training data to use for fine-tuning.
serialization_dir : ``str``
The directory in which to save results and logs.
validation_data_path : ``str``, optional
Path to the validation data to use while fine-tuning.
extend_vocab: ``bool``, optional (default=False)
If ``True``, we use the new instances to extend your vocabulary.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
"""
prepare_environment(params)
if os.path.exists(serialization_dir) and os.listdir(serialization_dir):
raise ConfigurationError(
f"Serialization directory ({serialization_dir}) "
f"already exists and is not empty.")
os.makedirs(serialization_dir, exist_ok=True)
prepare_global_logging(serialization_dir, file_friendly_logging)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
if params.pop('model', None):
logger.warning(
"You passed parameters for the model in your configuration file, but we "
"are ignoring them, using instead the model parameters in the archive."
)
vocabulary_params = params.pop('vocabulary', {})
if vocabulary_params.get('directory_path', None):
logger.warning(
"You passed `directory_path` in parameters for the vocabulary in "
"your configuration file, but it will be ignored. ")
all_datasets = datasets_from_params(params)
vocab = model.vocab
if extend_vocab:
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("Extending model vocabulary using %s data.",
", ".join(datasets_for_vocab_creation))
vocab.extend_from_instances(
vocabulary_params,
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(model.vocab)
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
frozen_parameter_names, tunable_parameter_names = \
get_frozen_and_tunable_parameter_names(model)
logger.info("Following parameters are Frozen (without gradient):")
for name in frozen_parameter_names:
logger.info(name)
logger.info("Following parameters are Tunable (with gradient):")
for name in tunable_parameter_names:
logger.info(name)
trainer = Trainer.from_params(model, serialization_dir, iterator,
train_data, validation_data, trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Fine-tuning interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model,
test_data,
iterator,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"),
"w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
def train_model(params: Params, serialization_dir: str) -> Model:
"""
This function can be used as an entry point to running models in AllenNLP
directly from a JSON specification using a :class:`Driver`. Note that if
you care about reproducibility, you should avoid running code using Pytorch
or numpy which affect the reproducibility of your experiment before you
import and use this function, these libraries rely on random seeds which
can be set in this function via a JSON specification file. Note that this
function performs training and will also evaluate the trained model on
development and test sets if provided in the parameter json.
Parameters
----------
params: Params, required.
A parameter object specifying an AllenNLP Experiment.
serialization_dir: str, required
The directory in which to save results and logs.
"""
prepare_environment(params)
os.makedirs(serialization_dir, exist_ok=True)
sys.stdout = TeeLogger(os.path.join(serialization_dir, "stdout.log"),
sys.stdout) # type: ignore
sys.stderr = TeeLogger(os.path.join(serialization_dir, "stderr.log"),
sys.stderr) # type: ignore
handler = logging.FileHandler(
os.path.join(serialization_dir, "python_logging.log"))
handler.setLevel(logging.INFO)
handler.setFormatter(
logging.Formatter(
'%(asctime)s - %(levelname)s - %(name)s - %(message)s'))
logging.getLogger().addHandler(handler)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, "model_params.json"),
"w") as param_file:
json.dump(serialization_params, param_file, indent=4)
# Now we begin assembling the required parts for the Trainer.
# 1. Primary training data.
dataset_reader = DatasetReader.from_params(params.pop('dataset_reader'))
train_data_path = params.pop('train_data_path')
logger.info("Reading training data from %s", train_data_path)
train_data = dataset_reader.read(train_data_path)
# 2. Auxillary training data.
dataset_reader_aux = DatasetReader.from_params(
params.pop('dataset_reader_aux'))
train_data_path_aux = params.pop('train_data_path_aux')
logger.info("Reading auxilliary training data from %s",
train_data_path_aux)
train_data_aux = dataset_reader_aux.read(train_data_path_aux)
# If only using a fraction of the auxiliary data.
aux_sample_fraction = params.pop("aux_sample_fraction", 1.0)
if aux_sample_fraction < 1.0:
sample_size = int(aux_sample_fraction * len(train_data_aux.instances))
train_data_aux = Dataset(
random.sample(train_data_aux.instances, sample_size))
# Balance the two datasets by inflating the size of the smaller dataset to the size of the larger dataset.
train_size = len(train_data.instances)
aux_train_size = len(train_data_aux.instances)
mixing_ratio = params.pop("mixing_ratio")
# mixing_ratio = float(train_size)/aux_train_size
if train_size > aux_train_size: # case for PB scaffold.
difference = train_size - aux_train_size
aux_sample = [
random.choice(train_data_aux.instances) for _ in range(difference)
]
train_data_aux = Dataset(train_data_aux.instances + aux_sample)
logger.info(
"Inflating auxiliary train data from {} to {} samples".format(
aux_train_size, len(train_data_aux.instances)))
# else: # case for FN scaffold.
# difference = aux_train_size - train_size
# train_sample = [random.choice(train_data.instances) for _ in range(difference)]
# train_data = Dataset(train_data.instances + train_sample)
# logger.info("Inflating train data from {} to {} samples".format(
# train_size, len(train_data.instances)))
all_datasets: Dict[str, Dataset] = {"train": train_data}
all_datasets_aux: Dict[str, Dataset] = {"train_aux": train_data_aux}
# 3. Primary validation data.
validation_data_path = params.pop('validation_data_path', None)
if validation_data_path is not None:
logger.info("Reading validation data from %s", validation_data_path)
validation_data = dataset_reader.read(validation_data_path)
all_datasets["validation"] = validation_data
else:
validation_data = None
# 4. Auxillary validation data.
validation_data_path_aux = params.pop('validation_data_path_aux', None)
if validation_data_path_aux is not None:
logger.info("Reading auxilliary validation data from %s",
validation_data_path_aux)
validation_data_aux = dataset_reader_aux.read(validation_data_path_aux)
all_datasets_aux["validation_aux"] = validation_data_aux
else:
validation_data_aux = None
# 5. Primary test data
test_data_path = params.pop("test_data_path", None)
if test_data_path is not None:
logger.info("Reading test data from %s", test_data_path)
test_data = dataset_reader.read(test_data_path)
all_datasets["test"] = test_data
else:
test_data = None
# 6. Auxillary test data
test_data_path_aux = params.pop("test_data_path_aux", None)
if test_data_path_aux is not None:
logger.info("Reading auxillary test data from %s", test_data_path_aux)
test_data_aux = dataset_reader_aux.read(test_data_path_aux)
all_datasets_aux["test_aux"] = test_data_aux
else:
test_data_aux = None
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
datasets_for_vocab_creation_aux = set(
params.pop("auxillary_datasets_for_vocab_creation", all_datasets_aux))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info(
"Creating a vocabulary using %s data. Auxillary also included.",
", ".join(datasets_for_vocab_creation))
dataset_primary = Dataset([
instance for key, dataset in all_datasets.items()
for instance in dataset.instances if key in datasets_for_vocab_creation
])
dataset_aux = Dataset([
instance for key, dataset in all_datasets_aux.items()
for instance in dataset.instances
if key in datasets_for_vocab_creation_aux
])
vocab = Vocabulary.from_params(params.pop("vocabulary", {}),
dataset_primary,
dataset_aux=dataset_aux)
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
model = Model.from_params(vocab, params.pop('model'))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator_aux = DataIterator.from_params(params.pop("iterator_aux"))
train_data.index_instances(vocab)
train_data_aux.index_instances(vocab)
if validation_data:
validation_data.index_instances(vocab)
if validation_data_aux:
validation_data_aux.index_instances(vocab)
cutoff_epoch = params.pop("cutoff_epoch", -1)
trainer_params = params.pop("trainer")
trainer = MultiTaskTrainer.from_params(
model=model,
serialization_dir=serialization_dir,
iterator=iterator,
iterator_aux=iterator_aux,
train_dataset=train_data,
train_dataset_aux=train_data_aux,
mixing_ratio=mixing_ratio,
cutoff_epoch=cutoff_epoch,
validation_dataset=validation_data,
validation_dataset_aux=validation_data_aux,
params=trainer_params,
files_to_archive=params.files_to_archive)
evaluate_on_test = params.pop("evaluate_on_test", False)
params.assert_empty('base train command')
trainer.train()
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_data.index_instances(vocab)
evaluate(model, test_data, iterator, cuda_device=trainer._cuda_device) # pylint: disable=protected-access
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
if test_data_aux and evaluate_on_test:
test_data_aux.index_instances(vocab)
evaluate(model,
test_data_aux,
iterator_aux,
cuda_device=trainer._cuda_device) # pylint: disable=protected-access
elif test_data_aux:
logger.info(
"To evaluate on the auxillary test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
return model
def fine_tune_model(model: Model,
params: Params,
serialization_dir: str,
file_friendly_logging: bool = False) -> Model:
"""
Fine tunes the given model, using a set of parameters that is largely identical to those used
for :func:`~allennlp.commands.train.train_model`, except that the ``model`` section is ignored,
if it is present (as we are already given a ``Model`` here).
The main difference between the logic done here and the logic done in ``train_model`` is that
here we do not worry about vocabulary construction or creating the model object. Everything
else is the same.
Parameters
----------
archive : ``Archive``
A saved model archive that is the result of running the ``train`` command.
train_data_path : ``str``
Path to the training data to use for fine-tuning.
serialization_dir : ``str``
The directory in which to save results and logs.
validation_data_path : ``str``, optional
Path to the validation data to use while fine-tuning.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
"""
prepare_environment(params)
os.makedirs(serialization_dir)
prepare_global_logging(serialization_dir, file_friendly_logging)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
if params.pop('model', None):
logger.warning("You passed parameters for the model in your configuration file, but we "
"are ignoring them, using instead the model parameters in the archive.")
vocabulary_params = params.pop('vocabulary', {})
if vocabulary_params.get('directory_path', None):
logger.warning("You passed `directory_path` in parameters for the vocabulary in "
"your configuration file, but it will be ignored. "
"Vocabulary from the saved model will be extended with current data.")
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("Extending model vocabulary using %s data.", ", ".join(datasets_for_vocab_creation))
vocab = model.vocab
vocab.extend_from_instances(vocabulary_params,
(instance for key, dataset in all_datasets.items()
for instance in dataset
if key in datasets_for_vocab_creation))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
frozen_parameter_names, tunable_parameter_names = \
get_frozen_and_tunable_parameter_names(model)
logger.info("Following parameters are Frozen (without gradient):")
for name in frozen_parameter_names:
logger.info(name)
logger.info("Following parameters are Tunable (with gradient):")
for name in tunable_parameter_names:
logger.info(name)
trainer = Trainer.from_params(model,
serialization_dir,
iterator,
train_data,
validation_data,
trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info("Fine-tuning interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model, test_data, iterator, cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info("To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"), "w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
def train_model(config_file,
sub_output_dir,
data_iter=None,
all_datasets=None):
params = Params.from_file(config_file, '')
serialization_dir = sub_output_dir
prepare_environment(params)
create_serialization_dir(params, serialization_dir, False)
prepare_global_logging(serialization_dir, False)
cuda_device = params.params.get('trainer').get('cuda_device', -1)
if isinstance(cuda_device, list):
for device in cuda_device:
check_for_gpu(device)
else:
check_for_gpu(cuda_device)
params.to_file(os.path.join(serialization_dir, CONFIG_NAME))
if all_datasets is None:
all_datasets = datasets_from_params(params)
else:
params.pop("train_data_path")
params.pop("validation_data_path")
params.pop("dataset_reader")
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info(
"From dataset instances, %s will be considered for vocabulary creation.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
model = Model.from_params(vocab=vocab, params=params.pop('model'))
# Initializing the model can have side effect of expanding the vocabulary
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
intercepted_iter_params = params.pop("iterator")
if data_iter is None:
iter_type = intercepted_iter_params.pop("type")
assert iter_type == "extended_bucket", iter_type
intercepted_iter_params.params["type"] = "extended_bucket_for_reuse"
iterator = DataIterator.from_params(intercepted_iter_params)
iterator.index_with(vocab)
else:
iterator = data_iter
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(
validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
trainer = Trainer.from_params(model=model,
serialization_dir=serialization_dir,
iterator=iterator,
train_data=train_data,
validation_data=validation_data,
params=trainer_params,
validation_iterator=validation_iterator)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info(
"The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model,
test_data,
validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0] # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
dump_metrics(os.path.join(serialization_dir, "metrics.json"),
metrics,
log=True)
return iterator, all_datasets
def train_model_given_params_and_iterators(params,
serialization_dir,
iterator,
validation_iterator,
vocab,
all_datasets,
copied_but_unused_params,
file_friendly_logging: bool = False,
recover: bool = False,
force: bool = False):
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool``, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
force : ``bool``, optional (default=False)
If ``True``, we will overwrite the serialization directory if it already exists.
Returns
-------
best_model: ``Model``
The model with the best epoch weights.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover, force)
stdout_handler = prepare_global_logging(serialization_dir,
file_friendly_logging)
cuda_device = params.params.get('trainer').get('cuda_device', -1)
check_for_gpu(cuda_device)
params.to_file(os.path.join(serialization_dir, CONFIG_NAME))
for param_name in copied_but_unused_params:
params.pop(param_name, None)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
trainer_type = params.get("trainer", {}).get("type", "default")
assert trainer_type == "default", "Trainer type is given as " + str(
trainer_type)
# Special logic to instantiate backward-compatible trainer.
pieces = TrainerPieces.from_params(params, iterator, validation_iterator,
vocab, all_datasets, serialization_dir,
recover) # pylint: disable=no-member
trainer = Trainer.from_params(
model=pieces.model,
serialization_dir=serialization_dir,
iterator=pieces.iterator,
train_data=pieces.train_dataset,
validation_data=pieces.validation_dataset,
params=pieces.params,
validation_iterator=pieces.validation_iterator)
evaluation_iterator = pieces.validation_iterator or pieces.iterator
evaluation_dataset = pieces.test_dataset
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Evaluate
if evaluation_dataset and evaluate_on_test:
logger.info(
"The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
trainer.model,
evaluation_dataset,
evaluation_iterator,
cuda_device=trainer._cuda_devices[0], # pylint: disable=protected-access,
# TODO(brendanr): Pass in an arg following Joel's trainer refactor.
batch_weight_key="")
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif evaluation_dataset:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
if stdout_handler is not None:
cleanup_global_logging(stdout_handler)
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
dump_metrics(os.path.join(serialization_dir, "metrics.json"),
metrics,
log=True)
# We count on the trainer to have the model with best weights
return trainer.model
def train_model(params: Params,
serialization_dir: str,
file_friendly_logging: bool = False,
recover: bool = False) -> Model:
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool`, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover)
# TODO(mattg): pull this block out into a separate function (maybe just add this to
# `prepare_environment`?)
Tqdm.set_slower_interval(file_friendly_logging)
sys.stdout = TeeLogger(
os.path.join(serialization_dir, "stdout.log"), # type: ignore
sys.stdout,
file_friendly_logging)
sys.stderr = TeeLogger(
os.path.join(serialization_dir, "stderr.log"), # type: ignore
sys.stderr,
file_friendly_logging)
handler = logging.FileHandler(
os.path.join(serialization_dir, "python_logging.log"))
handler.setLevel(logging.INFO)
handler.setFormatter(
logging.Formatter(
'%(asctime)s - %(levelname)s - %(name)s - %(message)s'))
logging.getLogger().addHandler(handler)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("Creating a vocabulary using %s data.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
model = Model.from_params(vocab, params.pop('model'))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
trainer = Trainer.from_params(model, serialization_dir, iterator,
train_data, validation_data, trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
metrics = trainer.train()
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model,
test_data,
iterator,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"),
"w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
def predict(cuda_device: int,
char_encoder: str,
data_dir: Path,
glove_path: Path,
temp_dir: Path,
random_seed: int = 13370,
numpy_seed: int = 1337,
torch_seed: int = 133) -> List[Tuple[float, float, str]]:
'''
This allows you to train an NER model that has either a CNN character
encoder or LSTM based on the `char_encoder` argument. The encoded
characters are then combined with 100D Glove vectors and put through
a Bi-Directional LSTM.
This is based on the following two papers:
1. CNN character encoder version `Ma and Hovy \
<https://arxiv.org/abs/1603.01354>`_
2. LSTM character encoder version `Lample et al. \
<https://arxiv.org/abs/1603.01360>`_
:param cuda_device: Whether to use GPU or CPU, CPU = -1, GPU = 0
:param char_encoder: Whether to use an LSTM or CNN. Acceptable values are:
1. lstm, 2. cnn
:param data_dir: A file path to a directory that contains three files:
1. train.txt, 2. dev.txt, 3. test.txt that are the
train, dev, and test files respectively in CONLL 2003
format where the NER labels are in BIO format.
:param glove_path: A file path to the `Glove 6 billion word vectors 100D \
<https://nlp.stanford.edu/projects/glove/>`_
:returns: The results as a list of tuples which are
(dev f1 score, test f1 score, char encoder) where the list
represents a different trained model using the same train, dev,
and test split but different random seed.
'''
#
# The dataset we are using has already been formatted from IOB1 to BIO
# When reading the dataset state the coding is the orignal as this will not
# affect the labels i.e. the labels and schema is not checked.
label_encoding = 'BIO'
constrain_crf_decoding = True
dropout = 0.5
char_embedding_dim = 30
cnn_window_size = (3, )
cnn_filters = 50
cnn_output_dim = len(cnn_window_size) * cnn_filters
lstm_char_dim = 25
lstm_char_output_dim = lstm_char_dim * 2
word_embedding_dim = 100
# LSTM size is that of Ma and Hovy
lstm_dim = 100
# Dropout applies dropout after the encoded text and after the word embedding.
#tensorboard_dir = Path('..', 'tensorboard ner')
#tensorboard_dir.mkdir(parents=True, exist_ok=True)
#train_log = SummaryWriter(Path(tensorboard_dir, "log", "train"))
#validation_log = SummaryWriter(Path(tensorboard_dir, "log", "validation"))
train_fp = Path(data_dir, 'train.txt')
dev_fp = Path(data_dir, 'dev.txt')
test_fp = Path(data_dir, 'test.txt')
result_fp = Path(data_dir, 'results.json')
result_data = []
if result_fp.exists():
with result_fp.open('r') as json_file:
result_data = json.load(json_file)
indexers = {
'tokens': SingleIdTokenIndexer(namespace='tokens',
lowercase_tokens=True),
'chars': TokenCharactersIndexer(namespace='token_characters')
}
conll_reader = Conll2003DatasetReader(token_indexers=indexers)
train_dataset = conll_reader.read(cached_path(train_fp))
dev_dataset = conll_reader.read(cached_path(dev_fp))
test_dataset = conll_reader.read(cached_path(test_fp))
vocab = Vocabulary.from_instances(train_dataset + dev_dataset +
test_dataset)
char_embedding = Embedding(
num_embeddings=vocab.get_vocab_size("token_characters"),
embedding_dim=char_embedding_dim)
if char_encoder.strip().lower() == 'lstm':
character_lstm = torch.nn.LSTM(char_embedding_dim,
lstm_char_dim,
batch_first=True,
bidirectional=True)
character_lstm_wrapper = PytorchSeq2VecWrapper(character_lstm)
token_character_encoder = TokenCharactersEncoder(
embedding=char_embedding, encoder=character_lstm_wrapper)
total_char_embedding_dim = lstm_char_output_dim
elif char_encoder.strip().lower() == 'cnn':
character_cnn = CnnEncoder(embedding_dim=char_embedding_dim,
num_filters=cnn_filters,
ngram_filter_sizes=cnn_window_size,
output_dim=cnn_output_dim)
token_character_encoder = TokenCharactersEncoder(
embedding=char_embedding, encoder=character_cnn)
total_char_embedding_dim = cnn_output_dim
else:
raise ValueError('The Character encoder can only be `lstm` or `cnn` '
f'and not {char_encoder}')
glove_path = cached_path(glove_path)
glove_100_weights = _read_pretrained_embeddings_file(
glove_path, word_embedding_dim, vocab, 'tokens')
token_embedding = Embedding(num_embeddings=vocab.get_vocab_size('tokens'),
embedding_dim=word_embedding_dim,
weight=glove_100_weights)
word_embeddings = BasicTextFieldEmbedder({
"tokens": token_embedding,
"chars": token_character_encoder
})
total_embedding_dim = word_embedding_dim + total_char_embedding_dim
lstm = torch.nn.LSTM(total_embedding_dim,
lstm_dim,
batch_first=True,
bidirectional=True)
lstm_wrapper = PytorchSeq2SeqWrapper(lstm)
model = CrfTagger(vocab,
word_embeddings,
lstm_wrapper,
label_encoding=label_encoding,
dropout=dropout,
constrain_crf_decoding=constrain_crf_decoding)
optimizer = optim.SGD(model.parameters(), lr=0.015, weight_decay=1e-8)
schedule = LearningRateWithoutMetricsWrapper(
torch.optim.lr_scheduler.StepLR(optimizer, step_size=1, gamma=0.9524))
iterator = BucketIterator(batch_size=64,
sorting_keys=[("tokens", "num_tokens")])
iterator.index_with(vocab)
temp_dir_fp = str(temp_dir.resolve())
temp_folder_path = tempfile.mkdtemp(dir=temp_dir_fp)
set_random_env(cuda_device, random_seed, numpy_seed, torch_seed)
trainer = Trainer(model=model,
grad_clipping=5.0,
learning_rate_scheduler=schedule,
serialization_dir=temp_folder_path,
optimizer=optimizer,
iterator=iterator,
train_dataset=train_dataset,
validation_dataset=dev_dataset,
shuffle=True,
cuda_device=cuda_device,
patience=5,
num_epochs=1000)
#trainer._tensorboard = TensorboardWriter(train_log=train_log,
# validation_log=validation_log)
interesting_metrics = trainer.train()
best_model_weights = Path(temp_folder_path, 'best.th')
best_model_state = torch.load(best_model_weights)
model.load_state_dict(best_model_state)
test_result = evaluate(model, test_dataset, iterator, cuda_device)
dev_result = evaluate(model, dev_dataset, iterator, cuda_device)
test_f1 = test_result['f1-measure-overall']
dev_f1 = dev_result['f1-measure-overall']
result_data.append((dev_f1, test_f1, char_encoder))
with result_fp.open('w+') as json_file:
json.dump(result_data, json_file)
print(f'{interesting_metrics}')
return result_data
def fine_tune_model(model: Model,
params: Params,
serialization_dir: str,
file_friendly_logging: bool = False) -> Model:
"""
Fine tunes the given model, using a set of parameters that is largely identical to those used
for :func:`~allennlp.commands.train.train_model`, except that the ``model`` section is ignored,
if it is present (as we are already given a ``Model`` here).
The main difference between the logic done here and the logic done in ``train_model`` is that
here we do not worry about vocabulary construction or creating the model object. Everything
else is the same.
Parameters
----------
archive : ``Archive``
A saved model archive that is the result of running the ``train`` command.
train_data_path : ``str``
Path to the training data to use for fine-tuning.
serialization_dir : ``str``
The directory in which to save results and logs.
validation_data_path : ``str``, optional
Path to the validation data to use while fine-tuning.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
"""
prepare_environment(params)
os.makedirs(serialization_dir)
prepare_global_logging(serialization_dir, file_friendly_logging)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
if params.pop('model', None):
logger.warning(
"You passed parameters for the model in your configuration file, but we "
"are ignoring them, using instead the model parameters in the archive."
)
if params.pop('vocabulary', None):
logger.warning(
"You passed parameters for the vocabulary in your configuration file, but "
"we are ignoring them, using instead the vocabulary from the saved model."
)
vocab = model.vocab
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
all_datasets = datasets_from_params(params)
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
trainer = Trainer.from_params(model, serialization_dir, iterator,
train_data, validation_data, trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Fine-tuning interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model,
test_data,
iterator,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"),
"w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
def fine_tune_model(model: Model,
params: Params,
serialization_dir: str,
file_friendly_logging: bool = False) -> Model:
"""
Fine tunes the given model, using a set of parameters that is largely identical to those used
for :func:`~allennlp.commands.train.train_model`, except that the ``model`` section is ignored,
if it is present (as we are already given a ``Model`` here).
The main difference between the logic done here and the logic done in ``train_model`` is that
here we do not worry about vocabulary construction or creating the model object. Everything
else is the same.
Parameters
----------
archive : ``Archive``
A saved model archive that is the result of running the ``train`` command.
train_data_path : ``str``
Path to the training data to use for fine-tuning.
serialization_dir : ``str``
The directory in which to save results and logs.
validation_data_path : ``str``, optional
Path to the validation data to use while fine-tuning.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
"""
prepare_environment(params)
os.makedirs(serialization_dir)
# TODO(mattg): pull this block out into a separate function (maybe just add this to
# `prepare_environment`?)
Tqdm.set_slower_interval(file_friendly_logging)
sys.stdout = TeeLogger(
os.path.join(serialization_dir, "stdout.log"), # type: ignore
sys.stdout,
file_friendly_logging)
sys.stderr = TeeLogger(
os.path.join(serialization_dir, "stderr.log"), # type: ignore
sys.stderr,
file_friendly_logging)
handler = logging.FileHandler(
os.path.join(serialization_dir, "python_logging.log"))
handler.setLevel(logging.INFO)
handler.setFormatter(
logging.Formatter(
'%(asctime)s - %(levelname)s - %(name)s - %(message)s'))
logging.getLogger().addHandler(handler)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
if params.pop('model', None):
logger.warning(
"You passed parameters for the model in your configuration file, but we "
"are ignoring them, using instead the model parameters in the archive."
)
if params.pop('vocabulary', None):
logger.warning(
"You passed parameters for the vocabulary in your configuration file, but "
"we are ignoring them, using instead the vocabulary from the saved model."
)
vocab = model.vocab
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
all_datasets = datasets_from_params(params)
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
trainer = Trainer.from_params(model, serialization_dir, iterator,
train_data, validation_data, trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
metrics = trainer.train()
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model,
test_data,
iterator,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"),
"w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info("The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model, test_data, validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0], # pylint: disable=protected-access,
# TODO(brendanr): Pass in an arg following Joel's trainer refactor.
batch_weight_key=""
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info("To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
dump_metrics(os.path.join(serialization_dir, "metrics.json"), metrics, log=True)
return best_model
def train_model(params: Params,
serialization_dir: str,
file_friendly_logging: bool = False,
recover: bool = False) -> Model:
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool``, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
Returns
-------
best_model: ``Model``
The model with the best epoch weights.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover)
prepare_global_logging(serialization_dir, file_friendly_logging)
check_for_gpu(params.get('trainer').get('cuda_device', -1))
params.to_file(os.path.join(serialization_dir, CONFIG_NAME))
all_datasets, all_datasets_aux, all_datasets_aux2 = datasets_from_params(params)
datasets_for_vocab_creation = set(params.pop("datasets_for_vocab_creation", all_datasets))
datasets_for_vocab_creation_aux = set(params.pop("auxiliary_datasets_for_vocab_creation", all_datasets_aux))
datasets_for_vocab_creation_aux2 = set(params.pop("auxiliary_datasets_for_vocab_creation_2", all_datasets_aux2))
mixing_ratio = params.pop_float("mixing_ratio")
mixing_ratio2 = params.pop_float("mixing_ratio2")
cutoff_epoch = params.pop("cutoff_epoch", -1)
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("From dataset instances, %s will be considered for vocabulary creation.",
", ".join(datasets_for_vocab_creation))
vocab_instances_aux = [
instance for key, dataset in all_datasets_aux.items()
for instance in dataset
if key in datasets_for_vocab_creation_aux
]
vocab_instances_aux.extend([
instance for key, dataset in all_datasets_aux2.items()
for instance in dataset
if key in datasets_for_vocab_creation_aux2
])
vocab = VocabularyMultitask.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset
if key in datasets_for_vocab_creation),
instances_aux=vocab_instances_aux
)
model = Model.from_params(vocab=vocab, params=params.pop('model'))
# Initializing the model can have side effect of expanding the vocabulary
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
iterator_aux = DataIterator.from_params(params.pop("iterator_aux"))
iterator_aux.index_with(vocab)
iterator_aux2 = DataIterator.from_params(params.pop("iterator_aux2"))
iterator_aux2.index_with(vocab)
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
# TODO: if validation in multi-task need to add validation iterator as above
train_data = all_datasets.get('train')
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
train_data_aux = all_datasets_aux.get('train_aux')
validation_data_aux = all_datasets_aux.get('validation_aux')
test_data_aux = all_datasets_aux.get('test_aux')
train_data_aux2 = all_datasets_aux2.get('train_aux')
validation_data_aux2 = all_datasets_aux2.get('validation_aux')
test_data_aux2 = all_datasets_aux2.get('test_aux')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
frozen_parameter_names, tunable_parameter_names = \
get_frozen_and_tunable_parameter_names(model)
logger.info("Following parameters are Frozen (without gradient):")
for name in frozen_parameter_names:
logger.info(name)
logger.info("Following parameters are Tunable (with gradient):")
for name in tunable_parameter_names:
logger.info(name)
trainer = MultiTaskTrainer2.from_params(model=model,
serialization_dir=serialization_dir,
iterator=iterator,
iterator_aux=iterator_aux,
iterator_aux2=iterator_aux2,
train_data=train_data,
train_data_aux=train_data_aux,
train_data_aux2=train_data_aux2,
mixing_ratio=mixing_ratio,
mixing_ratio2=mixing_ratio2,
cutoff_epoch=cutoff_epoch,
validation_data_aux=validation_data_aux,
validation_data_aux2=validation_data_aux2,
validation_data=validation_data,
params=trainer_params,
validation_iterator=validation_iterator)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
evaluate_aux_on_test = params.pop_bool("evaluate_aux_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info("Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info("The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model, test_data, validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0] # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info("To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
if test_data_aux and evaluate_aux_on_test:
# for instance in test_data_aux:
# instance.index_fields(vocab)
# for instance in test_data_aux2:
# instance.index_fields(vocab)
test_metrics_aux = evaluate(best_model, test_data_aux, iterator_aux,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
test_metrics_aux2 = evaluate(best_model, test_data_aux2, iterator_aux2,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics_aux.items():
metrics["test_aux_" + key] = value
for key, value in test_metrics_aux2.items():
metrics["test_aux2_" + key] = value
elif test_data_aux:
logger.info("To evaluate on the auxiliary test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
dump_metrics(os.path.join(serialization_dir, "metrics.json"), metrics, log=True)
return best_model
def train_model(params: Params, serialization_dir: str) -> Model:
"""
This function can be used as an entry point to running models in AllenNLP
directly from a JSON specification using a :class:`Driver`. Note that if
you care about reproducibility, you should avoid running code using Pytorch
or numpy which affect the reproducibility of your experiment before you
import and use this function, these libraries rely on random seeds which
can be set in this function via a JSON specification file. Note that this
function performs training and will also evaluate the trained model on
development and test sets if provided in the parameter json.
Parameters
----------
params: Params, required.
A parameter object specifying an AllenNLP Experiment.
serialization_dir: str, required
The directory in which to save results and logs.
"""
prepare_environment(params)
os.makedirs(serialization_dir, exist_ok=True)
sys.stdout = TeeLogger(os.path.join(serialization_dir, "stdout.log"), sys.stdout) # type: ignore
sys.stderr = TeeLogger(os.path.join(serialization_dir, "stderr.log"), sys.stderr) # type: ignore
handler = logging.FileHandler(os.path.join(serialization_dir, "python_logging.log"))
handler.setLevel(logging.INFO)
handler.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(name)s - %(message)s'))
logging.getLogger().addHandler(handler)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, "model_params.json"), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
# Now we begin assembling the required parts for the Trainer.
dataset_reader = DatasetReader.from_params(params.pop('dataset_reader'))
train_data_path = params.pop('train_data_path')
logger.info("Reading training data from %s", train_data_path)
train_data = dataset_reader.read(train_data_path)
all_datasets: List[Dataset] = [train_data]
datasets_in_vocab = ["train"]
validation_data_path = params.pop('validation_data_path', None)
if validation_data_path is not None:
logger.info("Reading validation data from %s", validation_data_path)
validation_data = dataset_reader.read(validation_data_path)
all_datasets.append(validation_data)
datasets_in_vocab.append("validation")
else:
validation_data = None
test_data_path = params.pop("test_data_path", None)
if test_data_path is not None:
logger.info("Reading test data from %s", test_data_path)
test_data = dataset_reader.read(test_data_path)
all_datasets.append(test_data)
datasets_in_vocab.append("test")
else:
test_data = None
logger.info("Creating a vocabulary using %s data.", ", ".join(datasets_in_vocab))
vocab = Vocabulary.from_params(params.pop("vocabulary", {}),
Dataset([instance for dataset in all_datasets
for instance in dataset.instances]))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
model = Model.from_params(vocab, params.pop('model'))
iterator = DataIterator.from_params(params.pop("iterator"))
train_data.index_instances(vocab)
if validation_data:
validation_data.index_instances(vocab)
trainer_params = params.pop("trainer")
trainer = Trainer.from_params(model,
serialization_dir,
iterator,
train_data,
validation_data,
trainer_params)
evaluate_on_test = params.pop("evaluate_on_test", False)
params.assert_empty('base train command')
trainer.train()
# Now tar up results
archive_model(serialization_dir)
if test_data and evaluate_on_test:
test_data.index_instances(vocab)
evaluate(model, test_data, iterator, cuda_device=trainer._cuda_device) # pylint: disable=protected-access
elif test_data:
logger.info("To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
return model
def test_evaluate_calculates_average_loss(self):
losses = [7.0, 9.0, 8.0]
outputs = [{"loss": torch.Tensor([loss])} for loss in losses]
data_loader = DummyDataLoader(outputs)
metrics = evaluate(DummyModel(), data_loader, -1, "")
assert metrics["loss"] == pytest.approx(8.0)
def modified_train_model(serialization_dir,
training_config_filename,
cuda_device=-1,
file_friendly_logging: bool = False) -> Model:
"""
Function not currently in use. This is from back when I was trying to keep each successive
addition to the model's training in the same serialization directory.
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool``, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
Returns
-------
best_model: ``Model``
The model with the best epoch weights.
"""
model, params, prev_optimizer_params, cur_optimizer_params = \
load_model_from_serialization_dir(serialization_dir, training_config_filename, cuda_device=cuda_device)
prepare_environment(params)
prepare_global_logging(serialization_dir, file_friendly_logging)
cuda_device = params.params.get('trainer').get('cuda_device', -1)
if isinstance(cuda_device, list):
for device in cuda_device:
check_for_gpu(device)
else:
check_for_gpu(cuda_device)
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info(
"From dataset instances, %s will be considered for vocabulary creation.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
params.pop('model')
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(
validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
list_of_cur_optimizer_param_keys = [
key for key in cur_optimizer_params.as_flat_dict().keys()
]
list_of_prev_optimizer_param_keys = [
key for key in prev_optimizer_params.as_flat_dict().keys()
]
optimizer_params_match = True
for key in list_of_cur_optimizer_param_keys:
if key not in list_of_prev_optimizer_param_keys:
optimizer_params_match = False
break
for key in list_of_prev_optimizer_param_keys:
if key not in list_of_cur_optimizer_param_keys:
optimizer_params_match = False
break
if not optimizer_params_match:
# a list of each p is what will be passed to the optimizer constructor while constructing Trainer--
# adjust if necessary (i.e., if we changed optimizers)
model_params = [[n, p] for n, p in model.named_parameters()
if p.requires_grad]
assert "parameter_groups" not in list_of_cur_optimizer_param_keys, \
"Current way of dealing with optimizer change doesn't take parameter groups into account"
assert "parameter_groups" not in list_of_prev_optimizer_param_keys, \
"Current way of dealing with optimizer change doesn't take parameter groups into account"
for param_tup in model_params:
# modify the second element of param_tup in-place (it's a dict) to match the keys specified in
# cur_optimizer_params
param_dict = param_tup[1]
keys_to_del = []
keys_already_in_dict = []
try:
for key in param_dict.keys():
if not key in list_of_cur_optimizer_param_keys:
keys_to_del.append(key)
else:
keys_already_in_dict.append(key)
for key in keys_to_del:
del param_dict[key]
for key_to_have in list_of_cur_optimizer_param_keys:
if key_to_have != "type" and key_to_have not in keys_already_in_dict:
param_dict[key_to_have] = cur_optimizer_params.get(
key_to_have)
except:
pass
trainer = Trainer.from_params(model=model,
serialization_dir=serialization_dir,
iterator=iterator,
train_data=train_data,
validation_data=validation_data,
params=trainer_params,
validation_iterator=validation_iterator)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info(
"The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model,
test_data,
validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0] # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
dump_metrics(os.path.join(serialization_dir, "metrics.json"),
metrics,
log=True)
return best_model
def train_model(params: Params,
serialization_dir: str,
file_friendly_logging: bool = False,
recover: bool = False,
force: bool = False) -> Model:
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool``, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
Returns
-------
best_model: ``Model``
The model with the best epoch weights.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover, force)
prepare_global_logging(serialization_dir, file_friendly_logging)
cuda_device = params.params.get('trainer').get('cuda_device', -1)
if isinstance(cuda_device, list):
for device in cuda_device:
check_for_gpu(device)
else:
check_for_gpu(cuda_device)
params.to_file(os.path.join(serialization_dir, CONFIG_NAME))
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("From dataset instances, %s will be considered for vocabulary creation.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset
if key in datasets_for_vocab_creation)
)
model = Model.from_params(vocab=vocab, params=params.pop('model'))
############################################################################################################################################
prev_state_dict = torch.load("/home/ubuntu/Hurricanes/model/bestS.th", map_location='cpu')
for n, p in model.named_parameters():
if (
n in prev_state_dict
and n != 'linear.weight'
and n != 'linear.bias'
and n != 'classifier_feedforward._linear_layers.1.weight'
and n != 'classifier_feedforward._linear_layers.1.bias'
and n != 'classifier_feedforward._linear_layers.0.weight'
and n != 'classifier_feedforward._linear_layers.0.bias'
):
w = prev_state_dict[n]
p.data.copy_(w.data)
# Initializing the model can have side effect of expanding the vocabulary
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
frozen_parameter_names, tunable_parameter_names = \
get_frozen_and_tunable_parameter_names(model)
logger.info("Following parameters are Frozen (without gradient):")
for name in frozen_parameter_names:
logger.info(name)
logger.info("Following parameters are Tunable (with gradient):")
for name in tunable_parameter_names:
logger.info(name)
trainer_choice = trainer_params.pop_choice("type",
Trainer.list_available(),
default_to_first_choice=True)
trainer = Trainer.by_name(trainer_choice).from_params(model=model,
serialization_dir=serialization_dir,
iterator=iterator,
train_data=train_data,
validation_data=validation_data,
params=trainer_params,
validation_iterator=validation_iterator)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info("Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info("The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model, test_data, validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0] # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info("To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
dump_metrics(os.path.join(serialization_dir, "metrics.json"), metrics, log=True)
return best_model
def train_model(params: Params,
serialization_dir: str,
cuda_device: int,
train_data_path: str,
validation_data_path: str,
test_data_path: str,
file_friendly_logging: bool = False) -> Model:
"""
This function can be used as an entry point to running models in AllenNLP
directly from a JSON specification using a :class:`Driver`. Note that if
you care about reproducibility, you should avoid running code using Pytorch
or numpy which affect the reproducibility of your experiment before you
import and use this function, these libraries rely on random seeds which
can be set in this function via a JSON specification file. Note that this
function performs training and will also evaluate the trained model on
development and test sets if provided in the parameter json.
Parameters
----------
params: Params, required.
A parameter object specifying an AllenNLP Experiment.
serialization_dir: str, required
The directory in which to save results and logs.
"""
prepare_environment(params)
os.makedirs(serialization_dir, exist_ok=True)
sys.stdout = TeeLogger(
os.path.join(serialization_dir, "stdout.log"), # type: ignore
sys.stdout,
file_friendly_logging)
sys.stderr = TeeLogger(
os.path.join(serialization_dir, "stderr.log"), # type: ignore
sys.stderr,
file_friendly_logging)
handler = logging.FileHandler(
os.path.join(serialization_dir, "python_logging.log"))
handler.setLevel(logging.INFO)
handler.setFormatter(
logging.Formatter(
'%(asctime)s - %(levelname)s - %(name)s - %(message)s'))
logging.getLogger().addHandler(handler)
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, "model_params.json"),
"w") as param_file:
json.dump(serialization_params, param_file, indent=4)
# all_datasets = datasets_from_params(params)
all_datasets = datasets_from_args(params, train_data_path,
validation_data_path, test_data_path)
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("Creating a vocabulary using %s data.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
model = Model.from_params(vocab, params.pop('model'))
if cuda_device >= 0:
model = model.cuda(cuda_device)
# iterator = DataIterator.from_params(params.pop("iterator"))
# iterator.index_with(vocab)
train_iterator = DataIterator.from_params(params.pop("train_iterator"))
val_iterator = DataIterator.from_params(params.pop("val_iterator"))
train_iterator.index_with(vocab)
val_iterator.index_with(vocab)
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
trainer = Trainer.from_params(model, serialization_dir, train_iterator,
val_iterator, cuda_device, train_data,
validation_data, trainer_params)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
# params.assert_empty('base train command')
metrics = trainer.train()
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
if test_data and evaluate_on_test:
test_metrics = evaluate(model,
test_data,
val_iterator,
cuda_device=trainer._cuda_devices[0]) # pylint: disable=protected-access
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"),
"w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return model
def test_evaluate_calculates_average_loss(self):
losses = [7.0, 9.0, 8.0]
outputs = [{"loss": torch.Tensor([loss])} for loss in losses]
iterator = DummyIterator(outputs)
metrics = evaluate(DummyModel(), None, iterator, -1, "")
self.assertAlmostEqual(metrics["loss"], 8.0)
def train_model(params: Params,
serialization_dir: str,
file_friendly_logging: bool = False,
recover: bool = False) -> Model:
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool``, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
Returns
-------
best_model: ``Model``
The model with the best epoch weights.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover)
prepare_global_logging(serialization_dir, file_friendly_logging)
check_for_gpu(params.params.get('trainer').get('cuda_device', -1))
serialization_params = deepcopy(params).as_dict(quiet=True)
with open(os.path.join(serialization_dir, CONFIG_NAME), "w") as param_file:
json.dump(serialization_params, param_file, indent=4)
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("Creating a vocabulary using %s data.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset if key in datasets_for_vocab_creation))
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
model = Model.from_params(vocab=vocab, params=params.pop('model'))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(
validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
frozen_parameter_names, tunable_parameter_names = \
get_frozen_and_tunable_parameter_names(model)
logger.info("Following parameters are Frozen (without gradient):")
for name in frozen_parameter_names:
logger.info(name)
logger.info("Following parameters are Tunable (with gradient):")
for name in tunable_parameter_names:
logger.info(name)
trainer = Trainer.from_params(model,
serialization_dir,
iterator,
train_data,
validation_data,
trainer_params,
validation_iterator=validation_iterator)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info(
"Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir,
files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info(
"The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model,
test_data,
validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0] # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info(
"To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
metrics_json = json.dumps(metrics, indent=2)
with open(os.path.join(serialization_dir, "metrics.json"),
"w") as metrics_file:
metrics_file.write(metrics_json)
logger.info("Metrics: %s", metrics_json)
return best_model
def train(self) -> Dict[str, Any]:
'''
:returns: A dictionary containing validation and test results on all of
the tasks.
'''
main_task_name = self.task_order[-1]
main_task_trainer = self.task_trainers[main_task_name]
main_trainer_name = (main_task_trainer, main_task_name)
auxiliary_task_names = self.task_order[:-1]
auxiliary_task_trainers = [
self.task_trainers[task_name] for task_name in auxiliary_task_names
]
auxiliary_trainers_names = (auxiliary_task_trainers,
auxiliary_task_names)
training_start_time = time.time()
# Training
training_metrics = multi_task_training(main_trainer_name,
auxiliary_trainers_names)
training_elapsed_time = time.time() - training_start_time
training_metrics["training_duration"] = str(
datetime.timedelta(seconds=training_elapsed_time))
all_metrics = {**training_metrics}
logger.info(
'Evaluating the Auxiliary tasks on their validation and test data')
self.aux_models: List[SharedCrfTagger] = []
self.all_models = {}
for aux_trainer, aux_name in zip(*auxiliary_trainers_names):
logger.info(f'Evaluating {aux_name} on their validation data')
validation_instances = self.auxiliary_task_validation_data[
aux_name]
cuda_device = self.task_cuda_evaluation[aux_name]
results = evaluate(aux_trainer.model,
validation_instances,
self.iterator,
cuda_device=cuda_device,
batch_weight_key=None)
for key, value in results.items():
all_metrics[f"aux_{aux_name}_best_validation_{key}"] = value
logger.info(f'Evaluating {aux_name} on their test data')
test_instances = self.all_task_test_data[aux_name]
results = evaluate(aux_trainer.model,
test_instances,
self.iterator,
cuda_device=cuda_device,
batch_weight_key=None)
for key, value in results.items():
all_metrics[f"aux_{aux_name}_best_test_{key}"] = value
self.aux_models.append(aux_trainer.model)
self.all_models[aux_name] = aux_trainer.model
self.all_models[self.task_order[-1]] = main_task_trainer.model
logger.info(
f'Evaluating the main task {main_task_name} on their test data')
test_instances = self.all_task_test_data[main_task_name]
cuda_device = self.task_cuda_evaluation[main_task_name]
results = evaluate(main_task_trainer.model,
test_instances,
self.iterator,
cuda_device=cuda_device,
batch_weight_key=None)
for key, value in results.items():
all_metrics[f"test_{key}"] = value
# Saving the models in serialization format
for task in self.task_order:
serialization_dir = self.task_serialization_dir[task]
best_weights_fp = str(Path(serialization_dir, 'best.th').resolve())
task_params = self.task_params[task]
del task_params['evaluate']
task_params['model']['text_field_embedder'] = self.original_params[
'shared_values']['text_field_embedder'].duplicate(
).as_ordered_dict()
task_params['model']['shared_encoder'] = self.original_params[
'shared_values']['shared_encoder'].duplicate().as_ordered_dict(
)
task_params['iterator'] = self.original_params['shared_values'][
'iterator'].duplicate().as_ordered_dict()
with tempfile.TemporaryDirectory() as temp_dir:
task_params.to_file(str(Path(temp_dir, CONFIG_NAME).resolve()))
self.all_models[task].vocab.save_to_files(
str(Path(temp_dir, "vocabulary").resolve()))
archive_model(temp_dir, weights=best_weights_fp)
saved_model_fp = str(Path(temp_dir, 'model.tar.gz').resolve())
new_saved_model_fp = Path(self.main_serialization_dir,
f'{task}_model.tar.gz')
# main task does not require name of the task
if task == self.task_order[-1]:
new_saved_model_fp = Path(self.main_serialization_dir,
'model.tar.gz')
new_saved_model_fp = str(new_saved_model_fp.resolve())
shutil.move(saved_model_fp, new_saved_model_fp)
self.model = main_task_trainer.model
return all_metrics
def train_model(params: Params,
serialization_dir: str,
file_friendly_logging: bool = False,
recover: bool = False,
force: bool = False) -> Model:
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool``, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
Returns
-------
best_model: ``Model``
The model with the best epoch weights.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover, force)
prepare_global_logging(serialization_dir, file_friendly_logging)
cuda_device = params.params.get('trainer').get('cuda_device', -1)
if isinstance(cuda_device, list):
for device in cuda_device:
check_for_gpu(device)
else:
check_for_gpu(cuda_device)
params.to_file(os.path.join(serialization_dir, CONFIG_NAME))
all_datasets = datasets_from_params(params)
datasets_for_vocab_creation = set(params.pop("datasets_for_vocab_creation", all_datasets))
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info("From dataset instances, %s will be considered for vocabulary creation.",
", ".join(datasets_for_vocab_creation))
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
(instance for key, dataset in all_datasets.items()
for instance in dataset
if key in datasets_for_vocab_creation)
)
model = Model.from_params(vocab=vocab, params=params.pop('model'))
# Initializing the model can have side effect of expanding the vocabulary
vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
trainer_params = params.pop("trainer")
no_grad_regexes = trainer_params.pop("no_grad", ())
for name, parameter in model.named_parameters():
if any(re.search(regex, name) for regex in no_grad_regexes):
parameter.requires_grad_(False)
frozen_parameter_names, tunable_parameter_names = \
get_frozen_and_tunable_parameter_names(model)
logger.info("Following parameters are Frozen (without gradient):")
for name in frozen_parameter_names:
logger.info(name)
logger.info("Following parameters are Tunable (with gradient):")
for name in tunable_parameter_names:
logger.info(name)
trainer_choice = trainer_params.pop_choice("type",
Trainer.list_available(),
default_to_first_choice=True)
trainer = Trainer.by_name(trainer_choice).from_params(model=model,
serialization_dir=serialization_dir,
iterator=iterator,
train_data=train_data,
validation_data=validation_data,
params=trainer_params,
validation_iterator=validation_iterator)
evaluate_on_test = params.pop_bool("evaluate_on_test", False)
params.assert_empty('base train command')
try:
metrics = trainer.train()
except KeyboardInterrupt:
# if we have completed an epoch, try to create a model archive.
if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
logging.info("Training interrupted by the user. Attempting to create "
"a model archive using the current best epoch weights.")
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
raise
# Now tar up results
archive_model(serialization_dir, files_to_archive=params.files_to_archive)
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
if test_data and evaluate_on_test:
logger.info("The model will be evaluated using the best epoch weights.")
test_metrics = evaluate(
best_model, test_data, validation_iterator or iterator,
cuda_device=trainer._cuda_devices[0] # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
elif test_data:
logger.info("To evaluate on the test set after training, pass the "
"'evaluate_on_test' flag, or use the 'allennlp evaluate' command.")
dump_metrics(os.path.join(serialization_dir, "metrics.json"), metrics, log=True)
return best_model
def train_model(params: Params,
serialization_dir: str,
file_friendly_logging: bool = False,
recover: bool = False) -> Model:
"""
Trains the model specified in the given :class:`Params` object, using the data and training
parameters also specified in that object, and saves the results in ``serialization_dir``.
Parameters
----------
params : ``Params``
A parameter object specifying an AllenNLP Experiment.
serialization_dir : ``str``
The directory in which to save results and logs.
file_friendly_logging : ``bool``, optional (default=False)
If ``True``, we add newlines to tqdm output, even on an interactive terminal, and we slow
down tqdm's output to only once every 10 seconds.
recover : ``bool``, optional (default=False)
If ``True``, we will try to recover a training run from an existing serialization
directory. This is only intended for use when something actually crashed during the middle
of a run. For continuing training a model on new data, see the ``fine-tune`` command.
Returns
-------
best_model: ``Model``
The model with the best epoch weights.
"""
prepare_environment(params)
create_serialization_dir(params, serialization_dir, recover)
prepare_global_logging(serialization_dir, file_friendly_logging)
check_for_gpu(params.get('trainer').get('cuda_device', 0))
params.to_file(os.path.join(serialization_dir, CONFIG_NAME))
all_datasets = datasets_from_params(params)
for dataset in datasets_for_vocab_creation:
if dataset not in all_datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {dataset}")
logger.info(
"From dataset instances, %s will be considered for vocabulary creation.",
", ".join(datasets_for_vocab_creation))
vocab_dir = os.path.join(serialization_dir, 'vocabulary')
vocab = Vocabulary.from_files(vocab_dir)
# vocab.save_to_files(os.path.join(serialization_dir, "vocabulary"))
model = Model.from_params(vocab=vocab, params=params.pop('model'))
print(model)
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
validation_iterator_params = params.pop("validation_iterator", None)
if validation_iterator_params:
validation_iterator = DataIterator.from_params(
validation_iterator_params)
validation_iterator.index_with(vocab)
else:
validation_iterator = None
# train_data = all_datasets['train']
validation_data = all_datasets.get('validation')
test_data = all_datasets.get('test')
# trainer_params = params.pop("trainer")
# no_grad_regexes = trainer_params.pop("no_grad", ())
# for name, parameter in model.named_parameters():
# if any(re.search(regex, name) for regex in no_grad_regexes):
# parameter.requires_grad_(False)
# frozen_parameter_names, tunable_parameter_names = \
# get_frozen_and_tunable_parameter_names(model)
# logger.info("Following parameters are Frozen (without gradient):")
# for name in frozen_parameter_names:
# logger.info(name)
# logger.info("Following parameters are Tunable (with gradient):")
# for name in tunable_parameter_names:
# logger.info(name)
# trainer = Trainer.from_params(model,
# serialization_dir,
# iterator,
# train_data,
# validation_data,
# trainer_params,
# validation_iterator=validation_iterator)
evaluate_on_validation = True
evaluate_on_test = True
# params.assert_empty('base train command')
# try:
# metrics = trainer.train()
# except KeyboardInterrupt:
# # if we have completed an epoch, try to create a model archive.
# if os.path.exists(os.path.join(serialization_dir, _DEFAULT_WEIGHTS)):
# logging.info("Training interrupted by the user. Attempting to create "
# "a model archive using the current best epoch weights.")
# archive_model(serialization_dir, files_to_archive=params.files_to_archive)
# raise
# Now tar up results
# archive_model(serialization_dir, files_to_archive=params.files_to_archive)
metrics = {}
logger.info("Loading the best epoch weights.")
best_model_state_path = os.path.join(serialization_dir, 'best.th')
best_model_state = torch.load(best_model_state_path)
best_model = model
best_model.load_state_dict(best_model_state)
best_model.cuda()
if validation_data and evaluate_on_validation:
logger.info(
"The model will be evaluated using the best epoch weights on validation"
)
validation_metrics = evaluate(
best_model,
validation_data,
validation_iterator or iterator,
cuda_device=0 # pylint: disable=protected-access
)
for key, value in validation_metrics.items():
metrics["validation_" + key] = value
if test_data and evaluate_on_test:
logger.info(
"The model will be evaluated using the best epoch weights on test")
test_metrics = evaluate(
best_model,
test_data,
validation_iterator or iterator,
cuda_device=0 # pylint: disable=protected-access
)
for key, value in test_metrics.items():
metrics["test_" + key] = value
dump_metrics(os.path.join(serialization_dir, "metrics_new.json"),
metrics,
log=True)
return best_model
