def test_from_params(self):
# Save a vocab to check we can load it from_params.
vocab_dir = self.TEST_DIR / 'vocab_save'
vocab = Vocabulary(non_padded_namespaces=["a", "c"])
vocab.add_token_to_namespace("a0", namespace="a") # non-padded, should start at 0
vocab.add_token_to_namespace("a1", namespace="a")
vocab.add_token_to_namespace("a2", namespace="a")
vocab.add_token_to_namespace("b2", namespace="b") # padded, should start at 2
vocab.add_token_to_namespace("b3", namespace="b")
vocab.save_to_files(vocab_dir)
params = Params({"directory_path": vocab_dir})
vocab2 = Vocabulary.from_params(params)
assert vocab.get_index_to_token_vocabulary("a") == vocab2.get_index_to_token_vocabulary("a")
assert vocab.get_index_to_token_vocabulary("b") == vocab2.get_index_to_token_vocabulary("b")
# Test case where we build a vocab from a dataset.
vocab2 = Vocabulary.from_params(Params({}), self.dataset)
assert vocab2.get_index_to_token_vocabulary("tokens") == {0: '@@PADDING@@',
1: '@@UNKNOWN@@',
2: 'a', 3: 'c', 4: 'b'}
# Test from_params raises when we have neither a dataset and a vocab_directory.
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(Params({}))
# Test from_params raises when there are any other dict keys
# present apart from 'directory_path' and we aren't calling from_dataset.
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(Params({"directory_path": vocab_dir, "min_count": {'tokens': 2}}))
def test_from_params(self):
# Save a vocab to check we can load it from_params.
vocab_dir = self.TEST_DIR / 'vocab_save'
vocab = Vocabulary(non_padded_namespaces=["a", "c"])
vocab.add_token_to_namespace("a0", namespace="a") # non-padded, should start at 0
vocab.add_token_to_namespace("a1", namespace="a")
vocab.add_token_to_namespace("a2", namespace="a")
vocab.add_token_to_namespace("b2", namespace="b") # padded, should start at 2
vocab.add_token_to_namespace("b3", namespace="b")
vocab.save_to_files(vocab_dir)
params = Params({"directory_path": vocab_dir})
vocab2 = Vocabulary.from_params(params)
assert vocab.get_index_to_token_vocabulary("a") == vocab2.get_index_to_token_vocabulary("a")
assert vocab.get_index_to_token_vocabulary("b") == vocab2.get_index_to_token_vocabulary("b")
# Test case where we build a vocab from a dataset.
vocab2 = Vocabulary.from_params(Params({}), self.dataset)
assert vocab2.get_index_to_token_vocabulary("tokens") == {0: '@@PADDING@@',
1: '@@UNKNOWN@@',
2: 'a', 3: 'c', 4: 'b'}
# Test from_params raises when we have neither a dataset and a vocab_directory.
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(Params({}))
# Test from_params raises when there are any other dict keys
# present apart from 'vocabulary_directory' and we aren't calling from_dataset.
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(Params({"directory_path": vocab_dir, "min_count": {'tokens': 2}}))
def test_custom_padding_oov_tokens(self):
vocab = Vocabulary(oov_token="[UNK]")
assert vocab._oov_token == "[UNK]"
assert vocab._padding_token == "@@PADDING@@"
vocab = Vocabulary(padding_token="[PAD]")
assert vocab._oov_token == "@@UNKNOWN@@"
assert vocab._padding_token == "[PAD]"
vocab_dir = self.TEST_DIR / "vocab_save"
vocab = Vocabulary(oov_token="<UNK>")
vocab.add_tokens_to_namespace(["a0", "a1", "a2"], namespace="a")
vocab.save_to_files(vocab_dir)
params = Params({
"type": "from_files",
"directory": vocab_dir,
"oov_token": "<UNK>"
})
vocab = Vocabulary.from_params(params)
with pytest.raises(AssertionError) as excinfo:
vocab = Vocabulary.from_params(
Params({
"type": "from_files",
"directory": vocab_dir
}))
assert "OOV token not found!" in str(excinfo.value)
def test_invalid_vocab_extension(self):
vocab_dir = self.TEST_DIR / 'vocab_save'
original_vocab = Vocabulary(non_padded_namespaces=["tokens1"])
original_vocab.add_token_to_namespace("a", namespace="tokens1")
original_vocab.add_token_to_namespace("b", namespace="tokens1")
original_vocab.add_token_to_namespace("p", namespace="tokens2")
original_vocab.save_to_files(vocab_dir)
text_field1 = TextField([Token(t) for t in ["a"
"c"]],
{"tokens1": SingleIdTokenIndexer("tokens1")})
text_field2 = TextField([Token(t) for t in ["p", "q", "r"]],
{"tokens2": SingleIdTokenIndexer("tokens2")})
instances = Batch(
[Instance({
"text1": text_field1,
"text2": text_field2
})])
# Following 2 should give error: token1 is non-padded in original_vocab but not in instances
params = Params({
"directory_path": vocab_dir,
"extend": True,
"non_padded_namespaces": []
})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params, instances)
with pytest.raises(ConfigurationError):
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": []})
extended_vocab.extend_from_instances(params, instances)
# Following 2 should not give error: overlapping namespaces have same padding setting
params = Params({
"directory_path": vocab_dir,
"extend": True,
"non_padded_namespaces": ["tokens1"]
})
Vocabulary.from_params(params, instances)
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": ["tokens1"]})
extended_vocab.extend_from_instances(params, instances)
# Following 2 should give error: token1 is padded in instances but not in original_vocab
params = Params({
"directory_path": vocab_dir,
"extend": True,
"non_padded_namespaces": ["tokens1", "tokens2"]
})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params, instances)
with pytest.raises(ConfigurationError):
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": ["tokens1", "tokens2"]})
extended_vocab.extend_from_instances(params, instances)
def test_invalid_vocab_extension(self):
vocab_dir = self.TEST_DIR / 'vocab_save'
original_vocab = Vocabulary(non_padded_namespaces=["tokens1"])
original_vocab.add_token_to_namespace("a", namespace="tokens1")
original_vocab.add_token_to_namespace("b", namespace="tokens1")
original_vocab.add_token_to_namespace("p", namespace="tokens2")
original_vocab.save_to_files(vocab_dir)
text_field1 = TextField([Token(t) for t in ["a" "c"]],
{"tokens1": SingleIdTokenIndexer("tokens1")})
text_field2 = TextField([Token(t) for t in ["p", "q", "r"]],
{"tokens2": SingleIdTokenIndexer("tokens2")})
instances = Batch([Instance({"text1": text_field1, "text2": text_field2})])
# Following 2 should give error: token1 is non-padded in original_vocab but not in instances
params = Params({"directory_path": vocab_dir, "extend": True,
"non_padded_namespaces": []})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params, instances)
with pytest.raises(ConfigurationError):
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": []})
extended_vocab.extend_from_instances(params, instances)
with pytest.raises(ConfigurationError):
extended_vocab = copy.copy(original_vocab)
extended_vocab._extend(non_padded_namespaces=[],
tokens_to_add={"tokens1": ["a"], "tokens2": ["p"]})
# Following 2 should not give error: overlapping namespaces have same padding setting
params = Params({"directory_path": vocab_dir, "extend": True,
"non_padded_namespaces": ["tokens1"]})
Vocabulary.from_params(params, instances)
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": ["tokens1"]})
extended_vocab.extend_from_instances(params, instances)
extended_vocab = copy.copy(original_vocab)
extended_vocab._extend(non_padded_namespaces=["tokens1"],
tokens_to_add={"tokens1": ["a"], "tokens2": ["p"]})
# Following 2 should give error: token1 is padded in instances but not in original_vocab
params = Params({"directory_path": vocab_dir, "extend": True,
"non_padded_namespaces": ["tokens1", "tokens2"]})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params, instances)
with pytest.raises(ConfigurationError):
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": ["tokens1", "tokens2"]})
extended_vocab.extend_from_instances(params, instances)
with pytest.raises(ConfigurationError):
extended_vocab = copy.copy(original_vocab)
extended_vocab._extend(non_padded_namespaces=["tokens1", "tokens2"],
tokens_to_add={"tokens1": ["a"], "tokens2": ["p"]})
def setUp(self):
super().setUp()
params = Params.from_file(self.FIXTURES_ROOT / "encoder_decoder" / "copynet_seq2seq" / "experiment.json")
self.reader = DatasetReader.from_params(params["dataset_reader"])
instances = self.reader.read(self.FIXTURES_ROOT / "data" / "copynet" / "copyover.tsv")
self.instances = ensure_list(instances)
self.vocab = Vocabulary.from_params(params=params["vocabulary"], instances=instances)
def setUp(self):
super(TestCopyNetReader, self).setUp()
params = Params.from_file(self.FIXTURES_ROOT / "encoder_decoder" / "copynet_seq2seq" / "experiment.json")
self.reader = DatasetReader.from_params(params["dataset_reader"])
instances = self.reader.read(self.FIXTURES_ROOT / "data" / "copynet" / "copyover.tsv")
self.instances = ensure_list(instances)
self.vocab = Vocabulary.from_params(params=params["vocabulary"], instances=instances)
def test_max_vocab_size_dict(self):
params = Params({"max_vocab_size": {"tokens": 1, "characters": 20}})
vocab = Vocabulary.from_params(params=params, instances=self.dataset)
words = vocab.get_index_to_token_vocabulary().values()
# Additional 2 tokens are '@@PADDING@@' and '@@UNKNOWN@@' by default
assert len(words) == 3
def evaluate_from_file(archive_path,
model_path,
overrides=None,
eval_suffix='',
device=0):
if archive_path.endswith('gz'):
archive = load_archive(archive_path, device, overrides)
config = archive.config
prepare_environment(config)
model = archive.model
serialization_dir = os.path.dirname(archive_path)
elif archive_path.endswith('yaml'):
config = yaml_to_params(archive_path, overrides)
prepare_environment(config)
config_dir = os.path.dirname(archive_path)
serialization_dir = os.path.join(config_dir, 'serialization')
all_datasets = datasets_from_params(config)
# We want to create the vocab from scratch since it might be of a
# different type. Vocabulary.from_files will always create the base
# Vocabulary instance.
# if os.path.exists(os.path.join(serialization_dir, "vocabulary")):
# vocab_path = os.path.join(serialization_dir, "vocabulary")
# vocab = Vocabulary.from_files(vocab_path)
vocab = Vocabulary.from_params(config.pop('vocabulary'))
model = Model.from_params(vocab=vocab, params=config.pop('model'))
if model_path:
best_model_state = torch.load(model_path)
model.load_state_dict(best_model_state)
instances = all_datasets.get('test')
iterator = DataIterator.from_params(config.pop("validation_iterator"))
iterator.index_with(model.vocab)
model.eval().to(device)
model.evaluate_mode = True
metrics = evaluate(model,
instances,
iterator,
device,
serialization_dir,
eval_suffix,
batch_weight_key='')
logger.info("Finished evaluating.")
logger.info("Metrics:")
for key, metric in metrics.items():
logger.info("%s: %s", key, metric)
output_file = os.path.join(serialization_dir,
f"evaluate-metrics{eval_suffix}.json")
if output_file:
with open(output_file, "w") as file:
json.dump(metrics, file, indent=4)
return metrics
def test_from_params(self):
params = Params.from_file(N_GRAM_PARAMS)
vocabulary_params = params.pop("vocab")
dataset = self.model.reader.read(TRAIN_EXAMPLE)
vocabulary = Vocabulary.from_params(vocabulary_params,
instances=dataset)
model = LanguageModel.from_params(params, vocab=vocabulary)
self.assertTrue(isinstance(model, NGramLanguageModel))
def from_params(params: Params, serialization_dir: str, recover: bool = False) -> 'TrainerPieces':
all_datasets = training_util.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))
if recover and os.path.exists(os.path.join(serialization_dir, "vocabulary")):
vocab = Vocabulary.from_files(os.path.join(serialization_dir, "vocabulary"))
params.pop("vocabulary", {})
else:
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(model.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(model.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)
return TrainerPieces(model, iterator,
train_data, validation_data, test_data,
validation_iterator, trainer_params)
def main(config: str, model_th: str, dataset: str, hypo_file: str, ref_file: str,
batch_size: int, no_gpu: bool):
logger = logging.getLogger(__name__)
logger.info("Loading configuration parameters")
params = Params.from_file(config)
vocab_params = params.pop("vocabulary")
vocab = Vocabulary.from_params(vocab_params)
reader_params = params.pop("dataset_reader")
reader_name = reader_params.pop("type")
# reader_params["lazy"] = True # make sure we do not load the entire dataset
reader = DatasetReader.by_name(reader_name).from_params(reader_params)
logger.info("Reading data from {}".format(dataset))
data = reader.read(dataset)
iterator = BasicIterator(batch_size=batch_size)
iterator.index_with(vocab)
batches = iterator._create_batches(data, shuffle=False)
logger.info("Loading model")
model_params = params.pop("model")
model_name = model_params.pop("type")
model = Model.by_name(model_name).from_params(model_params, vocab=vocab)
if not no_gpu:
model.cuda(0)
with open(model_th, 'rb') as f:
if no_gpu:
state_dict = torch.load(f, map_location=torch.device('cpu'))
else:
state_dict = torch.load(f)
model.load_state_dict(state_dict)
predictor = Seq2SeqPredictor(model, reader)
model.eval()
with open(hypo_file, 'w') as hf, open(ref_file, 'w') as rf:
logger.info("Generating predictions")
for sample in tqdm(batches):
s = list(sample)
pred = predictor.predict_batch_instance(s)
for inst, p in zip(s, pred):
print(
" ".join(p["predicted_tokens"][0]),
file=hf
)
print(
" ".join(t.text for t in inst["target_tokens"][1:-1]),
file=rf
)
def setup_method(self):
super().setup_method()
params = Params.from_file(FIXTURES_ROOT / "generation" / "copynet" /
"experiment.json")
self.reader = DatasetReader.from_params(params["dataset_reader"])
instances = self.reader.read(FIXTURES_ROOT / "generation" / "copynet" /
"data" / "copyover.tsv")
self.instances = ensure_list(instances)
self.vocab = Vocabulary.from_params(params=params["vocabulary"],
instances=instances)
def preprocess(train_path, vocabulary_path, config_path):
params = Params.from_file(config_path)
reader_params = params.pop("reader", default=Params({}))
reader = DatasetReader.from_params(reader_params)
dataset = reader.read(train_path)
vocabulary_params = params.pop("vocabulary", default=Params({}))
vocabulary = Vocabulary.from_params(vocabulary_params, instances=dataset)
vocabulary.save_to_files(vocabulary_path)
def setUp(self):
super(TestCopyNetReader, self).setUp()
params = Params.from_file(
"nlpete/tests/fixtures/copynet/experiment.json")
self.reader = DatasetReader.from_params(params["dataset_reader"])
instances = self.reader.read(
"nlpete/tests/fixtures/copynet/copyover.tsv")
self.instances = ensure_list(instances)
self.vocab = Vocabulary.from_params(params=params["vocabulary"],
instances=instances)
def test_min_pretrained_embeddings(self):
params = Params({
"pretrained_files": {
"tokens": str(self.FIXTURES_ROOT / "embeddings/glove.6B.100d.sample.txt.gz")
},
"min_pretrained_embeddings": {"tokens": 50},
})
vocab = Vocabulary.from_params(params=params, instances=self.dataset)
assert vocab.get_vocab_size() >= 50
assert vocab.get_token_index("his") > 1 # not @@UNKNOWN@@
def main(config: str, model_th: str, dataset: str, out_file):
logger = logging.getLogger(__name__)
logger.info("Loading model and data")
params = Params.from_file(config)
vocab_params = params.pop("vocabulary")
vocab = Vocabulary.from_params(vocab_params)
reader_params = Params({
"source_token_indexers": {
"tokens": {
"type": "single_id",
"namespace": "tokens"
}
},
"target_namespace": "tokens"
})
# reader_name = reader_params.pop("type")
# reader_params["lazy"] = True # make sure we do not load the entire dataset
reader = UnsupervisedBTReader.from_params(reader_params)
logger.info("Reading data from {}".format(dataset))
data = reader.read(dataset)
iterator = BasicIterator(batch_size=32)
iterator.index_with(vocab)
batches = iterator._create_batches(data, shuffle=False)
logger.info("Loading model")
model_params = params.pop("model")
model_name = model_params.pop("type")
model = Model.by_name(model_name).from_params(model_params, vocab=vocab)
model.cuda(0)
with open(model_th, 'rb') as f:
model.load_state_dict(torch.load(f))
predictor = Seq2SeqPredictor(model, reader)
model.eval()
line_id = 0
writer = csv.writer(out_file, delimiter="\t")
logger.info("Generating predictions")
for sample in tqdm(batches):
s = list(sample)
pred = predictor.predict_batch_instance(s)
for inst, p in zip(s, pred):
writer.writerow((line_id, " ".join(
(t.text for t in inst["source_tokens"][1:-1])),
" ".join(p["predicted_tokens"][0])))
line_id += 1
def test_min_pretrained_embeddings(self):
params = Params({
"pretrained_files": {
"tokens": str(self.FIXTURES_ROOT / "embeddings/glove.6B.100d.sample.txt.gz")
},
"min_pretrained_embeddings": {"tokens": 50},
})
vocab = Vocabulary.from_params(params=params, instances=self.dataset)
assert vocab.get_vocab_size() >= 50
assert vocab.get_token_index("his") > 1 # not @@UNKNOWN@@
def test_max_vocab_size_dict(self):
params = Params({
"max_vocab_size": {
"tokens": 1,
"characters": 20
}
})
vocab = Vocabulary.from_params(params=params, instances=self.dataset)
words = vocab.get_index_to_token_vocabulary().values()
# Additional 2 tokens are '@@PADDING@@' and '@@UNKNOWN@@' by default
assert len(words) == 3
def test_from_params_extend_config(self):
vocab_dir = self.TEST_DIR / "vocab_save"
original_vocab = Vocabulary(non_padded_namespaces=["tokens"])
original_vocab.add_token_to_namespace("a", namespace="tokens")
original_vocab.save_to_files(vocab_dir)
text_field = TextField([Token(t) for t in ["a", "b"]],
{"tokens": SingleIdTokenIndexer("tokens")})
instances = Batch([Instance({"text": text_field})])
# If you ask to extend vocab from `directory`, instances must be passed
# in Vocabulary constructor, or else there is nothing to extend to.
params = Params({"type": "extend", "directory": vocab_dir})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params)
# If you ask to extend vocab, `directory` key must be present in params,
# or else there is nothing to extend from.
params = Params({"type": "extend"})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params, instances=instances)
def test_from_params_extend_config(self):
vocab_dir = self.TEST_DIR / 'vocab_save'
original_vocab = Vocabulary(non_padded_namespaces=["tokens"])
original_vocab.add_token_to_namespace("a", namespace="tokens")
original_vocab.save_to_files(vocab_dir)
text_field = TextField([Token(t) for t in ["a", "b"]],
{"tokens": SingleIdTokenIndexer("tokens")})
instances = Batch([Instance({"text": text_field})])
# If you ask to extend vocab from `directory_path`, instances must be passed
# in Vocabulary constructor, or else there is nothing to extend to.
params = Params({"directory_path": vocab_dir, "extend": True})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params)
# If you ask to extend vocab, `directory_path` key must be present in params,
# or else there is nothing to extend from.
params = Params({"extend": True})
with pytest.raises(ConfigurationError):
_ = Vocabulary.from_params(params, instances)
def create_or_extend_vocab(
params: Params,
datasets: Dict[str, Dict[str, Iterable[Instance]]],
vocabulary_params: Params,
vocabulary_path: str,
vocab: Vocabulary = None,
recover: bool = False,
) -> Vocabulary:
datasets_for_vocab_creation = set(
params.pop("datasets_for_vocab_creation", datasets))
for key in datasets_for_vocab_creation:
if key not in datasets:
raise ConfigurationError(
f"invalid 'dataset_for_vocab_creation' {key}")
datasets = {
key: dataset
for key, dataset in datasets.items()
if key in datasets_for_vocab_creation
}
flat_datasets = training_util.as_flat_dict(datasets)
instance_generator = (instance
for key, dataset in flat_datasets.items()
for instance in dataset)
dataset_keys_to_use_str = ", ".join(datasets_for_vocab_creation)
if vocab:
logger.info(
f"Extending model vocabulary using {dataset_keys_to_use_str} data."
)
vocab.extend_from_instances(instances=instance_generator)
else:
logger.info(
"From dataset instances, %s will be considered for vocabulary creation.",
dataset_keys_to_use_str,
)
if recover and os.path.exists(vocabulary_path):
vocab = Vocabulary.from_files(
vocabulary_path,
vocabulary_params.get("padding_token", None),
vocabulary_params.get("oov_token", None),
)
else:
# Using a generator comprehension here is important because, by being lazy,
# it allows us to not iterate over the dataset when directory_path is specified.
vocab = Vocabulary.from_params(vocabulary_params,
instances=instance_generator)
return vocab
def preprocess(train_path, vocabulary_path, config_path):
assert os.path.isfile(train_path), "Train dataset file does not exist"
assert os.path.isfile(config_path), "Config file does not exist"
params = Params.from_file(config_path)
reader_params = params.pop("reader", default=Params({}))
vocabulary_params = params.pop("vocabulary", default=Params({}))
reader = DatasetReader.from_params(reader_params)
dataset = reader.read(train_path)
vocabulary = Vocabulary.from_params(vocabulary_params, instances=dataset)
vocabulary.save_to_files(vocabulary_path)
def test_from_params_adds_tokens_to_vocab(self):
vocab = Vocabulary.from_params(
Params({"tokens_to_add": {"tokens": ["q", "x", "z"]}}), instances=self.dataset
)
assert vocab.get_index_to_token_vocabulary("tokens") == {
0: "@@PADDING@@",
1: "@@UNKNOWN@@",
2: "a",
3: "c",
4: "b",
5: "q",
6: "x",
7: "z",
}
def test_registrability(self):
@Vocabulary.register("my-vocabulary", constructor="constructor")
class MyVocabulary(Vocabulary):
@classmethod
def constructor(cls):
return MyVocabulary()
params = Params({"type": "my-vocabulary"})
instance = Instance(fields={})
vocab = Vocabulary.from_params(params=params, instances=[instance])
assert isinstance(vocab, MyVocabulary)
def main(config: str, model_th: str, dataset: str, seed: int):
logger = logging.getLogger(__name__)
logger.info("Loading model and data")
params = Params.from_file(config)
vocab_params = params.pop("vocabulary")
vocab = Vocabulary.from_params(vocab_params)
reader_params = params.pop("dataset_reader")
reader_name = reader_params.pop("type")
reader_params["lazy"] = True # make sure we do not load the entire dataset
reader = DatasetReader.by_name(reader_name).from_params(reader_params)
data = reader.read(dataset)
iterator = BasicIterator(batch_size=10)
iterator.index_with(vocab)
batches = iterator._create_batches(data, shuffle=False)
model_params = params.pop("model")
model_name = model_params.pop("type")
model = Model.by_name(model_name).from_params(model_params, vocab=vocab)
# model.cuda(cuda_device)
with open(model_th, 'rb') as f:
model.load_state_dict(torch.load(f))
predictor = Seq2SeqPredictor(model, reader)
model.eval()
logger.info("Generating predictions")
random.seed(seed)
samples = []
for b in batches:
samples.append(b)
if random.random() > 0.6:
break
sample = list(random.choice(samples))
pred = predictor.predict_batch_instance(sample)
for inst, p in zip(sample, pred):
print()
print("SOURCE:", " ".join([t.text for t in inst["source_tokens"]]))
print("GOLD:", " ".join([t.text for t in inst["target_tokens"]]))
print("GEN:", p["predicted_tokens"])
def main(config: str):
logger = logging.getLogger(__name__)
logger.info("Loading model and data")
params = Params.from_file(config)
vocab_params = params.pop("vocabulary")
vocab = Vocabulary.from_params(vocab_params)
logger.info("Loading model")
model_params = params.pop("model")
model_name = model_params.pop("type")
model = Model.by_name(model_name).from_params(model_params, vocab=vocab)
print("Number of parameters:", count_parameters(model))
def test_from_params_adds_tokens_to_vocab(self):
vocab = Vocabulary.from_params(
Params({u'tokens_to_add': {
u'tokens': [u'q', u'x', u'z']
}}), self.dataset)
assert vocab.get_index_to_token_vocabulary(u"tokens") == {
0: u'@@PADDING@@',
1: u'@@UNKNOWN@@',
2: u'a',
3: u'c',
4: u'b',
5: u'q',
6: u'x',
7: u'z'
}
def test_registrability(self):
@Vocabulary.register('my-vocabulary')
class MyVocabulary:
@classmethod
def from_params(cls, params, instances=None):
# pylint: disable=unused-argument
return MyVocabulary()
params = Params({'type': 'my-vocabulary'})
instance = Instance(fields={})
vocab = Vocabulary.from_params(params=params, instances=[instance])
assert isinstance(vocab, MyVocabulary)
def test_from_params_adds_tokens_to_vocab(self):
vocab = Vocabulary.from_params(
Params({'tokens_to_add': {
'tokens': ['q', 'x', 'z']
}}), self.dataset)
assert vocab.get_index_to_token_vocabulary("tokens") == {
0: '@@PADDING@@',
1: '@@UNKNOWN@@',
2: 'a',
3: 'c',
4: 'b',
5: 'q',
6: 'x',
7: 'z'
}
def test_max_vocab_size_partial_dict(self):
indexers = {"tokens": SingleIdTokenIndexer(), "token_characters": TokenCharactersIndexer()}
instance = Instance({
'text': TextField([Token(w) for w in 'Abc def ghi jkl mno pqr stu vwx yz'.split(' ')], indexers)
})
dataset = Batch([instance])
params = Params({
"max_vocab_size": {
"tokens": 1
}
})
vocab = Vocabulary.from_params(params=params, instances=dataset)
assert len(vocab.get_index_to_token_vocabulary("tokens").values()) == 3 # 1 + 2
assert len(vocab.get_index_to_token_vocabulary("token_characters").values()) == 28 # 26 + 2
def test_max_vocab_size_partial_dict(self):
indexers = {"tokens": SingleIdTokenIndexer(),
"token_characters": TokenCharactersIndexer(min_padding_length=3)}
instance = Instance({
'text': TextField([Token(w) for w in 'Abc def ghi jkl mno pqr stu vwx yz'.split(' ')], indexers)
})
dataset = Batch([instance])
params = Params({
"max_vocab_size": {
"tokens": 1
}
})
vocab = Vocabulary.from_params(params=params, instances=dataset)
assert len(vocab.get_index_to_token_vocabulary("tokens").values()) == 3 # 1 + 2
assert len(vocab.get_index_to_token_vocabulary("token_characters").values()) == 28 # 26 + 2
def _test_model(self, file_name):
params = self.params[file_name].duplicate()
reader_params = params.duplicate().pop("reader", default=Params({}))
if reader_params["type"] == "cnn_dailymail":
reader_params["cnn_tokenized_dir"] = TEST_STORIES_DIR
dataset_file = TEST_URLS_FILE
elif reader_params["type"] == "ria":
dataset_file = RIA_EXAMPLE_FILE
else:
assert False
reader = DatasetReader.from_params(reader_params)
tokenizer = reader._tokenizer
dataset = reader.read(dataset_file)
vocabulary_params = params.pop("vocabulary", default=Params({}))
vocabulary = Vocabulary.from_params(vocabulary_params,
instances=dataset)
model_params = params.pop("model")
model = Model.from_params(model_params, vocab=vocabulary)
print(model)
print("Trainable params count: ",
sum(p.numel() for p in model.parameters() if p.requires_grad))
iterator = DataIterator.from_params(params.pop('iterator'))
iterator.index_with(vocabulary)
trainer = Trainer.from_params(model, None, iterator, dataset, None,
params.pop('trainer'))
trainer.train()
model.eval()
predictor = Seq2SeqPredictor(model, reader)
for article, reference_sents in reader.parse_set(dataset_file):
ref_words = [
token.text for token in tokenizer.tokenize(reference_sents)
]
decoded_words = predictor.predict(article)["predicted_tokens"]
self.assertGreaterEqual(len(decoded_words), len(ref_words))
unk_count = 0
while DEFAULT_OOV_TOKEN in decoded_words:
unk_index = decoded_words.index(DEFAULT_OOV_TOKEN)
decoded_words.pop(unk_index)
unk_count += 1
if unk_index < len(ref_words):
ref_words.pop(unk_index)
self.assertLess(unk_count, 5)
self.assertListEqual(decoded_words[:len(ref_words)], ref_words)
def make_vocab(serialization_dir: str, recover: bool, all_datasets):
if recover and os.path.exists(
os.path.join(serialization_dir, "vocabulary")):
vocab = Vocabulary.from_files(
os.path.join(serialization_dir, "vocabulary"))
params.pop("vocabulary", {})
else:
vocab = Vocabulary.from_params(
params.pop("vocabulary", {}),
# Using a generator comprehension here is important
# because, being lazy, it allows us to not iterate over the
# dataset when directory_path is specified.
(instance for key, dataset in all_datasets.items()
if key in datasets_for_vocab_creation
for instance in dataset),
)
return vocab
def test_registrability(self):
@Vocabulary.register('my-vocabulary')
class MyVocabulary:
@classmethod
def from_params(cls, params, instances=None):
# pylint: disable=unused-argument
return MyVocabulary()
params = Params({'type': 'my-vocabulary'})
instance = Instance(fields={})
vocab = Vocabulary.from_params(params=params, instances=[instance])
assert isinstance(vocab, MyVocabulary)
def get_model_from_file(archive_path,
model_path,
overrides=None,
eval_suffix='',
device=0):
if archive_path.endswith('gz'):
archive = load_archive(archive_path, device, overrides)
config = archive.config
prepare_environment(config)
model = archive.model
serialization_dir = os.path.dirname(archive_path)
elif archive_path.endswith('yaml'):
config = yaml_to_params(archive_path, overrides)
prepare_environment(config)
config_dir = os.path.dirname(archive_path)
serialization_dir = os.path.join(config_dir, 'serialization')
all_datasets = datasets_from_params(config)
# We want to create the vocab from scratch since it might be of a
# different type. Vocabulary.from_files will always create the base
# Vocabulary instance.
if os.path.exists(os.path.join(serialization_dir, "vocabulary")):
vocab_path = os.path.join(serialization_dir, "vocabulary")
vocab = Vocabulary.from_files(vocab_path)
vocab = Vocabulary.from_params(config.pop('vocabulary'))
model = Model.from_params(vocab=vocab, params=config.pop('model'))
if model_path:
best_model_state = torch.load(model_path)
model.load_state_dict(best_model_state)
# instances = all_datasets.get('test')
iterator = DataIterator.from_params(config.pop("validation_iterator"))
iterator.index_with(model.vocab)
model.eval().to(device)
model.evaluate_mode = True
return model
def from_params( # type: ignore
cls,
params: Params,
serialization_dir: str,
recover: bool = False,
cache_directory: str = None,
cache_prefix: str = None,
) -> "MultiTaskTrainer":
readers = {
name: DatasetReader.from_params(reader_params)
for name, reader_params in params.pop(
"train_dataset_readers").items()
}
train_file_paths = params.pop("train_file_paths").as_dict()
datasets = {
name: reader.read(train_file_paths[name])
for name, reader in readers.items()
}
instances = (instance for dataset in datasets.values()
for instance in dataset)
vocab = Vocabulary.from_params(Params({}), instances=instances)
model = Model.from_params(params.pop("model"), vocab=vocab)
iterator = DataIterator.from_params(params.pop("iterator"))
iterator.index_with(vocab)
mingler = DatasetMingler.from_params(params.pop("mingler"))
parameters = [[n, p] for n, p in model.named_parameters()
if p.requires_grad]
optimizer = Optimizer.from_params(parameters, params.pop("optimizer"))
num_epochs = params.pop_int("num_epochs", 10)
_ = params.pop("trainer", Params({}))
params.assert_empty(__name__)
return MultiTaskTrainer(model, serialization_dir, iterator, mingler,
optimizer, datasets, num_epochs)
def setUpClass(cls):
LanguageModel.set_seed(42)
configs = (ENCODER_ONLY_MODEL_PARAMS,
ENCODER_ONLY_SAMPLED_SOFTMAX_MODEL_PARAMS)
cls.params_sets = [Params.from_file(config) for config in configs]
cls.vocabularies = []
for params in cls.params_sets:
vocabulary_params = params.pop("vocabulary", default=Params({}))
reader_params = params.duplicate().pop("reader",
default=Params({}))
reader = DatasetReader.from_params(reader_params)
dataset = reader.read(REMEMBERING_EXAMPLE)
cls.vocabularies.append(
Vocabulary.from_params(vocabulary_params, instances=dataset))
cls.train_vocabulary = Vocabulary.from_files(TRAIN_VOCAB_EXAMPLE)
cls.sentences = []
with open(REMEMBERING_EXAMPLE, "r", encoding="utf-8") as r:
for line in r:
cls.sentences.append(line.strip())
def test_valid_vocab_extension(self):
vocab_dir = self.TEST_DIR / 'vocab_save'
extension_ways = ["from_params", "extend_from_instances"]
# Test: padded/non-padded common namespaces are extending appropriately
non_padded_namespaces_list = [[], ["tokens"]]
for non_padded_namespaces in non_padded_namespaces_list:
original_vocab = Vocabulary(non_padded_namespaces=non_padded_namespaces)
original_vocab.add_token_to_namespace("d", namespace="tokens")
original_vocab.add_token_to_namespace("a", namespace="tokens")
original_vocab.add_token_to_namespace("b", namespace="tokens")
text_field = TextField([Token(t) for t in ["a", "d", "c", "e"]],
{"tokens": SingleIdTokenIndexer("tokens")})
instances = Batch([Instance({"text": text_field})])
for way in extension_ways:
if way == "extend_from_instances":
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": non_padded_namespaces})
extended_vocab.extend_from_instances(params, instances)
else:
shutil.rmtree(vocab_dir, ignore_errors=True)
original_vocab.save_to_files(vocab_dir)
params = Params({"directory_path": vocab_dir, "extend": True,
"non_padded_namespaces": non_padded_namespaces})
extended_vocab = Vocabulary.from_params(params, instances)
extra_count = 2 if extended_vocab.is_padded("tokens") else 0
assert extended_vocab.get_token_index("d", "tokens") == 0 + extra_count
assert extended_vocab.get_token_index("a", "tokens") == 1 + extra_count
assert extended_vocab.get_token_index("b", "tokens") == 2 + extra_count
assert extended_vocab.get_token_index("c", "tokens") # should be present
assert extended_vocab.get_token_index("e", "tokens") # should be present
assert extended_vocab.get_vocab_size("tokens") == 5 + extra_count
# Test: padded/non-padded non-common namespaces are extending appropriately
non_padded_namespaces_list = [[],
["tokens1"],
["tokens1", "tokens2"]]
for non_padded_namespaces in non_padded_namespaces_list:
original_vocab = Vocabulary(non_padded_namespaces=non_padded_namespaces)
original_vocab.add_token_to_namespace("a", namespace="tokens1") # index2
text_field = TextField([Token(t) for t in ["b"]],
{"tokens2": SingleIdTokenIndexer("tokens2")})
instances = Batch([Instance({"text": text_field})])
for way in extension_ways:
if way == "extend_from_instances":
extended_vocab = copy.copy(original_vocab)
params = Params({"non_padded_namespaces": non_padded_namespaces})
extended_vocab.extend_from_instances(params, instances)
else:
shutil.rmtree(vocab_dir, ignore_errors=True)
original_vocab.save_to_files(vocab_dir)
params = Params({"directory_path": vocab_dir, "extend": True,
"non_padded_namespaces": non_padded_namespaces})
extended_vocab = Vocabulary.from_params(params, instances)
# Should have two namespaces
assert len(extended_vocab._token_to_index) == 2
extra_count = 2 if extended_vocab.is_padded("tokens1") else 0
assert extended_vocab.get_vocab_size("tokens1") == 1 + extra_count
extra_count = 2 if extended_vocab.is_padded("tokens2") else 0
assert extended_vocab.get_vocab_size("tokens2") == 1 + extra_count
def test_from_params_adds_tokens_to_vocab(self):
vocab = Vocabulary.from_params(Params({'tokens_to_add': {'tokens': ['q', 'x', 'z']}}), self.dataset)
assert vocab.get_index_to_token_vocabulary("tokens") == {0: '@@PADDING@@',
1: '@@UNKNOWN@@',
2: 'a', 3: 'c', 4: 'b',
5: 'q', 6: 'x', 7: 'z'}
def test_from_params_valid_vocab_extension_thoroughly(self):
'''
Tests for Valid Vocab Extension thoroughly: Vocab extension is valid
when overlapping namespaces have same padding behaviour (padded/non-padded)
Summary of namespace paddings in this test:
original_vocab namespaces
tokens0 padded
tokens1 non-padded
tokens2 padded
tokens3 non-padded
instances namespaces
tokens0 padded
tokens1 non-padded
tokens4 padded
tokens5 non-padded
TypicalExtention example: (of tokens1 namespace)
-> original_vocab index2token
apple #0->apple
bat #1->bat
cat #2->cat
-> Token to be extended with: cat, an, apple, banana, atom, bat
-> extended_vocab: index2token
apple #0->apple
bat #1->bat
cat #2->cat
an #3->an
atom #4->atom
banana #5->banana
'''
vocab_dir = self.TEST_DIR / 'vocab_save'
original_vocab = Vocabulary(non_padded_namespaces=["tokens1", "tokens3"])
original_vocab.add_token_to_namespace("apple", namespace="tokens0") # index:2
original_vocab.add_token_to_namespace("bat", namespace="tokens0") # index:3
original_vocab.add_token_to_namespace("cat", namespace="tokens0") # index:4
original_vocab.add_token_to_namespace("apple", namespace="tokens1") # index:0
original_vocab.add_token_to_namespace("bat", namespace="tokens1") # index:1
original_vocab.add_token_to_namespace("cat", namespace="tokens1") # index:2
original_vocab.add_token_to_namespace("a", namespace="tokens2") # index:0
original_vocab.add_token_to_namespace("b", namespace="tokens2") # index:1
original_vocab.add_token_to_namespace("c", namespace="tokens2") # index:2
original_vocab.add_token_to_namespace("p", namespace="tokens3") # index:0
original_vocab.add_token_to_namespace("q", namespace="tokens3") # index:1
original_vocab.save_to_files(vocab_dir)
text_field0 = TextField([Token(t) for t in ["cat", "an", "apple", "banana", "atom", "bat"]],
{"tokens0": SingleIdTokenIndexer("tokens0")})
text_field1 = TextField([Token(t) for t in ["cat", "an", "apple", "banana", "atom", "bat"]],
{"tokens1": SingleIdTokenIndexer("tokens1")})
text_field4 = TextField([Token(t) for t in ["l", "m", "n", "o"]],
{"tokens4": SingleIdTokenIndexer("tokens4")})
text_field5 = TextField([Token(t) for t in ["x", "y", "z"]],
{"tokens5": SingleIdTokenIndexer("tokens5")})
instances = Batch([Instance({"text0": text_field0, "text1": text_field1,
"text4": text_field4, "text5": text_field5})])
params = Params({"directory_path": vocab_dir,
"extend": True,
"non_padded_namespaces": ["tokens1", "tokens5"]})
extended_vocab = Vocabulary.from_params(params, instances)
# namespaces: tokens0, tokens1 is common.
# tokens2, tokens3 only vocab has. tokens4, tokens5 only instances
extended_namespaces = {*extended_vocab._token_to_index}
assert extended_namespaces == {"tokens{}".format(i) for i in range(6)}
# # Check that _non_padded_namespaces list is consistent after extension
assert extended_vocab._non_padded_namespaces == {"tokens1", "tokens3", "tokens5"}
# # original_vocab["tokens1"] has 3 tokens, instances of "tokens1" ns has 5 tokens. 2 overlapping
assert extended_vocab.get_vocab_size("tokens1") == 6
assert extended_vocab.get_vocab_size("tokens0") == 8 # 2 extra overlapping because padded
# namespace tokens3, tokens4 was only in original_vocab,
# and its token count should be same in extended_vocab
assert extended_vocab.get_vocab_size("tokens2") == original_vocab.get_vocab_size("tokens2")
assert extended_vocab.get_vocab_size("tokens3") == original_vocab.get_vocab_size("tokens3")
# namespace tokens2 was only in instances,
# and its token count should be same in extended_vocab
assert extended_vocab.get_vocab_size("tokens4") == 6 # l,m,n,o + oov + padding
assert extended_vocab.get_vocab_size("tokens5") == 3 # x,y,z
# Word2index mapping of all words in all namespaces of original_vocab
# should be maintained in extended_vocab
for namespace, token2index in original_vocab._token_to_index.items():
for token, _ in token2index.items():
vocab_index = original_vocab.get_token_index(token, namespace)
extended_vocab_index = extended_vocab.get_token_index(token, namespace)
assert vocab_index == extended_vocab_index
# And same for Index2Word mapping
for namespace, index2token in original_vocab._index_to_token.items():
for index, _ in index2token.items():
vocab_token = original_vocab.get_token_from_index(index, namespace)
extended_vocab_token = extended_vocab.get_token_from_index(index, namespace)
assert vocab_token == extended_vocab_token