def __init__(self, context: det_torch.PyTorchTrialContext) -> None:
self.logger = logging.getLogger(__name__)
super(SWAGTrial, self).__init__(context)
self.logger.info(self.config)
# Prep dataset
# Get the datasets: you can either provide your own CSV or JSON training and evaluation
# files (see below) or just provide the name of one of the public datasets available on the
# hub at https://huggingface.co/datasets/ (the dataset will be downloaded automatically
# from the datasets Hub).
# For CSV/JSON files, this script will use the column called 'text' or the first column if
# no column called 'text' is found. You can easily tweak this behavior (see below).
# See more about loading any type of standard or custom dataset (from files, python dict,
# pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.html.
self.raw_datasets = hf.default_load_dataset(self.data_config)
self.tokenized_datasets = self.build_datasets()
train_length = len(self.tokenized_datasets["train"])
self.logger.info("training records: {}".format(train_length))
if ("records_per_epoch" in self.exp_config
and train_length != self.exp_config["records_per_epoch"]):
self.logger.warning(
"number of train records {} does not match records_per_epoch of {}"
.format(train_length, self.exp_config["records_per_epoch"]))
def __init__(self, context: det_torch.PyTorchTrialContext) -> None:
self.logger = logging.getLogger(__name__)
self.context = context
self.hparams = attrdict.AttrDict(context.get_hparams())
self.data_config = attrdict.AttrDict(context.get_data_config())
# Load dataset and get metadata.
# This needs to be done before we initialize the HF config, tokenizer, and model
# because we need to know num_labels before doing so.
self.raw_datasets = hf.default_load_dataset(self.data_config)
datasets_metadata = ner_utils.get_dataset_metadata(self.raw_datasets, self.hparams)
self.hparams.num_labels = datasets_metadata.num_labels
super(NERTrial, self).__init__(context)
self.logger.info(self.config)
# We need to create the tokenized dataset after init because we need to model and
# tokenizer to be available.
self.tokenized_datasets = ner_utils.build_tokenized_datasets(
self.raw_datasets,
self.model,
self.data_config,
self.tokenizer,
datasets_metadata.text_column_name,
datasets_metadata.label_column_name,
datasets_metadata.label_to_id,
)
train_length = len(self.tokenized_datasets["train"])
self.logger.info("training records: {}".format(train_length))
if (
"records_per_epoch" in self.exp_config
and train_length != self.exp_config["records_per_epoch"]
):
self.logger.warning(
"number of train records {} does not match records_per_epoch of {}".format(
train_length, self.exp_config["records_per_epoch"]
)
)
# Create metric reducer
self.reducer = context.experimental.wrap_reducer(
functools.partial(ner_utils.compute_metrics, datasets_metadata.label_list),
for_training=False,
)
def __init__(self, context: det_torch.PyTorchTrialContext) -> None:
self.logger = logging.getLogger(__name__)
self.hparams = attrdict.AttrDict(context.get_hparams())
self.data_config = attrdict.AttrDict(context.get_data_config())
self.context = context
# Check to make sure the dataset is configured correctly.
if self.data_config.dataset_name is not None:
dataset_name = self.data_config.dataset_name
if dataset_name == "squad":
assert (not self.data_config.version_2_with_negative
), "version_2_with_negative should be false for squad"
elif dataset_name == "squad_v2":
assert (
self.data_config.version_2_with_negative
), "version_2_with_negative should be true for squad_v2"
self.data_processors = data_beam_search
# Get the datasets: you can either provide your own CSV or JSON training and evaluation
# files (see below) or just provide the name of one of the public datasets available on the
# hub at https://huggingface.co/datasets/ (the dataset will be downloaded automatically
# from the datasets Hub).
# For CSV/JSON files, this script will use the column called 'text' or the first column if
# no column called 'text' is found. You can easily tweak this behavior (see below).
# See more about loading any type of standard or custom dataset (from files, python dict,
# pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.html.
self.raw_datasets = hf.default_load_dataset(self.data_config)
self.column_names = self.raw_datasets["train"].column_names
# For beam search, we need to use a different model from the default model returned by
# AutoModelForQuestionAnswering. We will use a custom init in this case that is a slight
# modification of the BaseTransformerTrial init method.
self.exp_config = attrdict.AttrDict(context.get_experiment_config())
# Check to make sure all expected hyperparameters are set.
self.check_hparams()
# Parse hparams and data_config.
(
self.config_kwargs,
self.tokenizer_kwargs,
self.model_kwargs,
) = hf.default_parse_config_tokenizer_model_kwargs(self.hparams)
optimizer_kwargs, scheduler_kwargs = hf.default_parse_optimizer_lr_scheduler_kwargs(
self.hparams)
self.config = transformers.XLNetConfig.from_pretrained(
**self.config_kwargs)
self.tokenizer = transformers.XLNetTokenizerFast.from_pretrained(
**self.tokenizer_kwargs)
# We need to use XLNetForQuestionAnswering instead of XLNetForQuestionAnsweringSimple
# which is the default returned by AutoModelForQuestionAnswering.
if self.hparams.use_pretrained_weights:
self.model_kwargs["config"] = self.config
self.model = transformers.XLNetForQuestionAnswering.from_pretrained(
**self.model_kwargs)
else:
self.model = transformers.XLNetForQuestionAnswering(self.config)
self.model = self.context.wrap_model(self.model)
# The rest is the same as the parent init method.
self.optimizer = self.context.wrap_optimizer(
hf.build_default_optimizer(self.model, optimizer_kwargs))
if self.hparams.use_apex_amp:
self.model, self.optimizer = self.context.configure_apex_amp(
models=self.model,
optimizers=self.optimizer,
)
self.lr_scheduler = self.context.wrap_lr_scheduler(
hf.build_default_lr_scheduler(self.optimizer, scheduler_kwargs),
det_torch.LRScheduler.StepMode.STEP_EVERY_BATCH,
)
self.grad_clip_fn = (
lambda x: torch.nn.utils.clip_grad_norm_(
x, optimizer_kwargs.max_grad_norm)
if optimizer_kwargs.max_grad_norm > 0 # type: ignore
else None)
self.logger.info(self.config)
if not isinstance(self.tokenizer,
transformers.PreTrainedTokenizerFast):
raise ValueError(
"This example script only works for models that have a fast tokenizer. Checkout "
"the big table of models at "
"https://huggingface.co/transformers/index.html#bigtable to find the model types "
"that meet this requirement")
# We need to create the tokenized dataset after init because we need to model and
# tokenizer to be available.
self.tokenized_datasets = self.build_datasets()
train_length = len(self.tokenized_datasets["train"])
self.logger.info("training records: {}".format(train_length))
if ("records_per_epoch" in self.exp_config
and train_length != self.exp_config["records_per_epoch"]):
self.logger.warning(
"number of train records {} does not match records_per_epoch of {}"
.format(train_length, self.exp_config["records_per_epoch"]))
# Create metric reducer
metric = datasets.load_metric("squad_v2" if self.data_config.
version_2_with_negative else "squad")
self.reducer = context.experimental.wrap_reducer(
functools.partial(
qa_utils.compute_metrics,
self.data_config,
self.column_names,
self.data_processors.post_processing_function,
self.raw_datasets,
self.tokenized_datasets,
self.model,
metric,
),
for_training=False,
)
def __init__(self, context: det_torch.PyTorchTrialContext) -> None:
self.logger = logging.getLogger(__name__)
super(QATrial, self).__init__(context)
self.logger.info(self.config)
# Check to make sure the dataset is configured correctly.
if self.data_config.dataset_name is not None:
dataset_name = self.data_config.dataset_name
if dataset_name == "squad":
assert (
not self.data_config.version_2_with_negative
), "version_2_with_negative should be false for squad"
elif dataset_name == "squad_v2":
assert (
self.data_config.version_2_with_negative
), "version_2_with_negative should be true for squad_v2"
self.data_processors = data
# Get the datasets: you can either provide your own CSV or JSON training and evaluation
# files (see below) or just provide the name of one of the public datasets available on the
# hub at https://huggingface.co/datasets/ (the dataset will be downloaded automatically
# from the datasets Hub).
# For CSV/JSON files, this script will use the column called 'text' or the first column if
# no column called 'text' is found. You can easily tweak this behavior (see below).
# See more about loading any type of standard or custom dataset (from files, python dict,
# pandas DataFrame, etc) at
# https://huggingface.co/docs/datasets/loading_datasets.html.
self.raw_datasets = hf.default_load_dataset(self.data_config)
self.column_names = self.raw_datasets["train"].column_names
if not isinstance(self.tokenizer, transformers.PreTrainedTokenizerFast):
raise ValueError(
"This example script only works for models that have a fast tokenizer. Checkout "
"the big table of models at "
"https://huggingface.co/transformers/index.html#bigtable to find the model types "
"that meet this requirement"
)
# We need to create the tokenized dataset after init because we need to model and
# tokenizer to be available.
self.tokenized_datasets = self.build_datasets()
train_length = len(self.tokenized_datasets["train"])
self.logger.info("training records: {}".format(train_length))
if (
"records_per_epoch" in self.exp_config
and train_length != self.exp_config["records_per_epoch"]
):
self.logger.warning(
"number of train records {} does not match records_per_epoch of {}".format(
train_length, self.exp_config["records_per_epoch"]
)
)
# Create metric reducer
metric = datasets.load_metric(
"squad_v2" if self.data_config.version_2_with_negative else "squad"
)
self.reducer = context.wrap_reducer(
functools.partial(
qa_utils.compute_metrics,
self.data_config,
self.column_names,
self.data_processors.post_processing_function,
self.raw_datasets,
self.tokenized_datasets,
self.model,
metric,
),
for_training=False,
)
def __init__(self, context: det_torch.PyTorchTrialContext) -> None:
self.logger = logging.getLogger(__name__)
self.hparams = attrdict.AttrDict(context.get_hparams())
self.data_config = attrdict.AttrDict(context.get_data_config())
self.context = context
# Load dataset and get metadata.
# This needs to be done before we initialize the HF config, tokenizer, and model
# because we need to know num_labels before doing so.
# For CSV/JSON files, this example will use as labels the column called `label` and as pair
# of sentences the sentences in columns called `sentence1` and `sentence2` if such column
# exists or the first two columns not named label if at least two columns are provided.
#
# If the CSVs/JSONs contain only one non-label column, the example will do single sentence
# classification on this single column.
# See more about loading any type of standard or custom dataset at
# https://huggingface.co/docs/datasets/loading_datasets.html.
self.raw_datasets = hf.default_load_dataset(self.data_config)
if self.hparams.finetuning_task is not None:
is_regression = self.hparams.finetuning_task == "stsb"
if not is_regression:
label_list = self.raw_datasets["train"].features["label"].names
num_labels = len(label_list)
else:
num_labels = 1
else:
# Trying to have good defaults here, don't hesitate to tweak to your needs.
is_regression = self.raw_datasets["train"].features[
"label"].dtype in [
"float32",
"float64",
]
if is_regression:
num_labels = 1
else:
# A useful fast method is datasets.Dataset.unique from
# https://huggingface.co/docs/datasets/package_reference/main_classes.html
label_list = self.raw_datasets["train"].unique("label")
label_list.sort() # Let's sort it for determinism
num_labels = len(label_list)
self.is_regression = is_regression
self.hparams.num_labels = num_labels
if not self.is_regression:
self.label_list = label_list
super(GLUETrial, self).__init__(context)
self.logger.info(self.config)
# We need to create the tokenized dataset after init because we need to model and
# tokenizer to be available.
self.tokenized_datasets = self.build_datasets()
train_length = len(self.tokenized_datasets["train"])
self.logger.info("training records: {}".format(train_length))
if ("records_per_epoch" in self.exp_config
and train_length != self.exp_config["records_per_epoch"]):
self.logger.warning(
"number of train records {} does not match records_per_epoch of {}"
.format(train_length, self.exp_config["records_per_epoch"]))
# Create metric reducer
metric = datasets.load_metric("glue", self.hparams.finetuning_task)
# You can define your custom compute_metrics function. It takes an `EvalPrediction` object
# (a namedtuple with a predictions and label_ids field) and has to return a dictionary
# mapping string to float.
def compute_metrics(pred_labels) -> Dict:
preds, labels = zip(*pred_labels)
preds = utils.expand_like(preds)
labels = utils.expand_like(labels)
preds = np.squeeze(preds) if is_regression else np.argmax(preds,
axis=1)
if self.hparams.finetuning_task is not None:
result = metric.compute(predictions=preds, references=labels)
if len(result) > 1:
result["combined_score"] = np.mean(list(
result.values())).item()
return result
elif is_regression:
return {"mse": ((preds - labels)**2).mean().item()}
else:
return {
"accuracy":
(preds == labels).astype(np.float32).mean().item()
}
self.reducer = context.wrap_reducer(compute_metrics,
for_training=False)