def __init__(self, w_words, s_words, direction, do_basic_tokenize=False):
# Build input_words and labels
input_words, labels = [], []
# Task Prefix
if direction == constants.INST_BACKWARD:
input_words.append(constants.ITN_PREFIX)
if direction == constants.INST_FORWARD:
input_words.append(constants.TN_PREFIX)
labels.append(constants.TASK_TAG)
# Main Content
for w_word, s_word in zip(w_words, s_words):
# Basic tokenization (if enabled)
if do_basic_tokenize:
w_word = ' '.join(basic_tokenize(w_word, self.lang))
if not s_word in constants.SPECIAL_WORDS:
s_word = ' '.join(basic_tokenize(s_word, self.lang))
# Update input_words and labels
if s_word == constants.SIL_WORD and direction == constants.INST_BACKWARD:
continue
if s_word in constants.SPECIAL_WORDS:
input_words.append(w_word)
labels.append(constants.SAME_TAG)
else:
if direction == constants.INST_BACKWARD:
input_words.append(s_word)
if direction == constants.INST_FORWARD:
input_words.append(w_word)
labels.append(constants.TRANSFORM_TAG)
self.input_words = input_words
self.labels = labels
def __init__(
self, w_words, s_words, inst_dir, start_idx, end_idx, lang, semiotic_class=None, do_basic_tokenize=False
):
start_idx = max(start_idx, 0)
end_idx = min(end_idx, len(w_words))
ctx_size = constants.DECODE_CTX_SIZE
extra_id_0 = constants.EXTRA_ID_0
extra_id_1 = constants.EXTRA_ID_1
# Extract center words
c_w_words = w_words[start_idx:end_idx]
c_s_words = s_words[start_idx:end_idx]
# Extract context
w_left = w_words[max(0, start_idx - ctx_size) : start_idx]
w_right = w_words[end_idx : end_idx + ctx_size]
s_left = s_words[max(0, start_idx - ctx_size) : start_idx]
s_right = s_words[end_idx : end_idx + ctx_size]
# Process sil words and self words
for jx in range(len(s_left)):
if s_left[jx] == constants.SIL_WORD:
s_left[jx] = ''
if s_left[jx] == constants.SELF_WORD:
s_left[jx] = w_left[jx]
for jx in range(len(s_right)):
if s_right[jx] == constants.SIL_WORD:
s_right[jx] = ''
if s_right[jx] == constants.SELF_WORD:
s_right[jx] = w_right[jx]
for jx in range(len(c_s_words)):
if c_s_words[jx] == constants.SIL_WORD:
c_s_words[jx] = ''
if inst_dir == constants.INST_BACKWARD:
c_w_words[jx] = ''
if c_s_words[jx] == constants.SELF_WORD:
c_s_words[jx] = c_w_words[jx]
# Extract input_words and output_words
if do_basic_tokenize:
c_w_words = basic_tokenize(' '.join(c_w_words), lang)
c_s_words = basic_tokenize(' '.join(c_s_words), lang)
w_input = w_left + [extra_id_0] + c_w_words + [extra_id_1] + w_right
s_input = s_left + [extra_id_0] + c_s_words + [extra_id_1] + s_right
if inst_dir == constants.INST_BACKWARD:
input_center_words = c_s_words
input_words = [constants.ITN_PREFIX] + s_input
output_words = c_w_words
if inst_dir == constants.INST_FORWARD:
input_center_words = c_w_words
input_words = [constants.TN_PREFIX] + w_input
output_words = c_s_words
# Finalize
self.input_str = ' '.join(input_words)
self.input_center_str = ' '.join(input_center_words)
self.output_str = ' '.join(output_words)
self.direction = inst_dir
self.semiotic_class = semiotic_class
def input_preprocessing(self, sents):
""" Function for preprocessing the input texts. The function first does
some basic tokenization. For English, it then also processes Greek letters
such as Δ or λ (if any).
Args:
sents: A list of input texts.
Returns: A list of preprocessed input texts.
"""
# Basic Preprocessing and Tokenization
if self.lang == constants.ENGLISH:
for ix, sent in enumerate(sents):
sents[ix] = sents[ix].replace('+', ' plus ')
sents[ix] = sents[ix].replace('=', ' equals ')
sents[ix] = sents[ix].replace('@', ' at ')
sents[ix] = sents[ix].replace('*', ' times ')
sents = [basic_tokenize(sent, self.lang) for sent in sents]
# Greek letters processing
if self.lang == constants.ENGLISH:
for ix, sent in enumerate(sents):
for jx, tok in enumerate(sent):
if tok in constants.EN_GREEK_TO_SPOKEN:
sents[ix][jx] = constants.EN_GREEK_TO_SPOKEN[tok]
return sents
def main(cfg: DictConfig) -> None:
logging.info(f'Config Params: {OmegaConf.to_yaml(cfg)}')
lang = cfg.lang
tagger_trainer, tagger_model = instantiate_model_and_trainer(
cfg, TAGGER_MODEL, False)
decoder_trainer, decoder_model = instantiate_model_and_trainer(
cfg, DECODER_MODEL, False)
tn_model = DuplexTextNormalizationModel(tagger_model, decoder_model, lang)
if not cfg.inference.interactive:
# Setup test_dataset
test_dataset = TextNormalizationTestDataset(cfg.data.test_ds.data_path,
cfg.data.test_ds.mode,
lang)
results = tn_model.evaluate(test_dataset, cfg.data.test_ds.batch_size,
cfg.inference.errors_log_fp)
print(f'\nTest results: {results}')
else:
while True:
test_input = input('Input a test input:')
test_input = ' '.join(basic_tokenize(test_input, lang))
outputs = tn_model._infer(
[test_input, test_input],
[constants.INST_BACKWARD, constants.INST_FORWARD])[-1]
print(f'Prediction (ITN): {outputs[0]}')
print(f'Prediction (TN): {outputs[1]}')
should_continue = input('\nContinue (y/n): ').strip().lower()
if should_continue.startswith('n'):
break
def __init__(self,
input_file: str,
mode: str,
lang: str,
keep_puncts: bool = False):
self.lang = lang
insts = read_data_file(input_file)
# Build inputs and targets
self.directions, self.inputs, self.targets = [], [], []
for (_, w_words, s_words) in insts:
# Extract words that are not punctuations
processed_w_words, processed_s_words = [], []
for w_word, s_word in zip(w_words, s_words):
if s_word == constants.SIL_WORD:
if keep_puncts:
processed_w_words.append(w_word)
processed_s_words.append(w_word)
continue
if s_word == constants.SELF_WORD:
processed_s_words.append(w_word)
if not s_word in constants.SPECIAL_WORDS:
processed_s_words.append(s_word)
processed_w_words.append(w_word)
# Create examples
for direction in constants.INST_DIRECTIONS:
if direction == constants.INST_BACKWARD:
if mode == constants.TN_MODE:
continue
input_words = processed_s_words
output_words = processed_w_words
if direction == constants.INST_FORWARD:
if mode == constants.ITN_MODE:
continue
input_words = w_words
output_words = processed_s_words
# Basic tokenization
input_words = basic_tokenize(' '.join(input_words), lang)
output_words = basic_tokenize(' '.join(output_words), lang)
# Update self.directions, self.inputs, self.targets
self.directions.append(direction)
self.inputs.append(' '.join(input_words))
self.targets.append(' '.join(output_words))
self.examples = list(zip(self.directions, self.inputs, self.targets))
def _infer(self, sents: List[str], inst_directions: List[str]):
""" Main function for Inference
Args:
sents: A list of input texts.
inst_directions: A list of str where each str indicates the direction of the corresponding instance (i.e., INST_BACKWARD for ITN or INST_FORWARD for TN).
Returns:
tag_preds: A list of lists where each list contains the tag predictions from the tagger for an input text.
output_spans: A list of lists where each list contains the decoded semiotic spans from the decoder for an input text.
final_outputs: A list of str where each str is the final output text for an input text.
"""
# Preprocessing
sents = self.input_preprocessing(list(sents))
# Tagging
tag_preds, nb_spans, span_starts, span_ends = self.tagger._infer(
sents, inst_directions)
output_spans = self.decoder._infer(sents, nb_spans, span_starts,
span_ends, inst_directions)
# Preprare final outputs
final_outputs = []
for ix, (sent, tags) in enumerate(zip(sents, tag_preds)):
cur_words, jx, span_idx = [], 0, 0
cur_spans = output_spans[ix]
while jx < len(sent):
tag, word = tags[jx], sent[jx]
if constants.SAME_TAG in tag:
cur_words.append(word)
jx += 1
elif constants.PUNCT_TAG in tag:
jx += 1
else:
jx += 1
cur_words.append(cur_spans[span_idx])
span_idx += 1
while jx < len(sent) and tags[
jx] == constants.I_PREFIX + constants.TRANSFORM_TAG:
jx += 1
cur_output_str = ' '.join(cur_words)
cur_output_str = ' '.join(basic_tokenize(cur_output_str,
self.lang))
final_outputs.append(cur_output_str)
return tag_preds, output_spans, final_outputs
def __init__(self, input_file: str, mode: str, lang: str):
self.lang = lang
insts = read_data_file(input_file, lang=lang)
# Build inputs and targets
self.directions, self.inputs, self.targets, self.classes, self.nb_spans, self.span_starts, self.span_ends = (
[],
[],
[],
[],
[],
[],
[],
)
for (classes, w_words, s_words) in insts:
# Extract words that are not punctuations
for direction in constants.INST_DIRECTIONS:
if direction == constants.INST_BACKWARD:
if mode == constants.TN_MODE:
continue
# ITN mode
(
processed_w_words,
processed_s_words,
processed_classes,
processed_nb_spans,
processed_s_span_starts,
processed_s_span_ends,
) = ([], [], [], 0, [], [])
s_word_idx = 0
for cls, w_word, s_word in zip(classes, w_words, s_words):
if s_word == constants.SIL_WORD:
continue
elif s_word == constants.SELF_WORD:
processed_s_words.append(w_word)
else:
processed_s_words.append(s_word)
processed_nb_spans += 1
processed_classes.append(cls)
processed_s_span_starts.append(s_word_idx)
s_word_idx += len(
basic_tokenize(processed_s_words[-1],
lang=self.lang))
processed_s_span_ends.append(s_word_idx)
processed_w_words.append(w_word)
self.span_starts.append(processed_s_span_starts)
self.span_ends.append(processed_s_span_ends)
self.classes.append(processed_classes)
self.nb_spans.append(processed_nb_spans)
# Basic tokenization
input_words = basic_tokenize(' '.join(processed_s_words),
lang)
# Update self.directions, self.inputs, self.targets
self.directions.append(direction)
self.inputs.append(' '.join(input_words))
self.targets.append(
processed_w_words
) # is list of lists where inner list contains target tokens (not words)
# TN mode
elif direction == constants.INST_FORWARD:
if mode == constants.ITN_MODE:
continue
(
processed_w_words,
processed_s_words,
processed_classes,
processed_nb_spans,
w_span_starts,
w_span_ends,
) = ([], [], [], 0, [], [])
w_word_idx = 0
for cls, w_word, s_word in zip(classes, w_words, s_words):
# TN forward mode
if s_word in constants.SPECIAL_WORDS:
processed_s_words.append(w_word)
else:
processed_s_words.append(s_word)
w_span_starts.append(w_word_idx)
w_word_idx += len(
basic_tokenize(w_word, lang=self.lang))
w_span_ends.append(w_word_idx)
processed_nb_spans += 1
processed_classes.append(cls)
processed_w_words.append(w_word)
self.span_starts.append(w_span_starts)
self.span_ends.append(w_span_ends)
self.classes.append(processed_classes)
self.nb_spans.append(processed_nb_spans)
# Basic tokenization
input_words = basic_tokenize(' '.join(processed_w_words),
lang)
# Update self.directions, self.inputs, self.targets
self.directions.append(direction)
self.inputs.append(' '.join(input_words))
self.targets.append(
processed_s_words
) # is list of lists where inner list contains target tokens (not words)
self.examples = list(
zip(
self.directions,
self.inputs,
self.targets,
self.classes,
self.nb_spans,
self.span_starts,
self.span_ends,
))
def evaluate(self,
dataset: TextNormalizationTestDataset,
batch_size: int,
errors_log_fp: str,
verbose: bool = True):
""" Function for evaluating the performance of the model on a dataset
Args:
dataset: The dataset to be used for evaluation.
batch_size: Batch size to use during inference. You can set it to be 1
(no batching) if you want to measure the running time of the model
per individual example (assuming requests are coming to the model one-by-one).
errors_log_fp: Path to the file for logging the errors
verbose: if true prints and logs various evaluation results
Returns:
results: A Dict containing the evaluation results (e.g., accuracy, running time)
"""
results = {}
error_f = open(errors_log_fp, 'w+')
# Apply the model on the dataset
(
all_run_times,
all_dirs,
all_inputs,
all_targets,
all_classes,
all_nb_spans,
all_span_starts,
all_span_ends,
all_output_spans,
) = ([], [], [], [], [], [], [], [], [])
all_tag_preds, all_final_preds = [], []
nb_iters = int(ceil(len(dataset) / batch_size))
for i in tqdm(range(nb_iters)):
start_idx = i * batch_size
end_idx = (i + 1) * batch_size
batch_insts = dataset[start_idx:end_idx]
(
batch_dirs,
batch_inputs,
batch_targets,
batch_classes,
batch_nb_spans,
batch_span_starts,
batch_span_ends,
) = zip(*batch_insts)
# Inference and Running Time Measurement
batch_start_time = perf_counter()
batch_tag_preds, batch_output_spans, batch_final_preds = self._infer(
batch_inputs, batch_dirs)
batch_run_time = (perf_counter() -
batch_start_time) * 1000 # milliseconds
all_run_times.append(batch_run_time)
# Update all_dirs, all_inputs, all_tag_preds, all_final_preds and all_targets
all_dirs.extend(batch_dirs)
all_inputs.extend(batch_inputs)
all_tag_preds.extend(batch_tag_preds)
all_final_preds.extend(batch_final_preds)
all_targets.extend(batch_targets)
all_classes.extend(batch_classes)
all_nb_spans.extend(batch_nb_spans)
all_span_starts.extend(batch_span_starts)
all_span_ends.extend(batch_span_ends)
all_output_spans.extend(batch_output_spans)
# Metrics
tn_error_ctx, itn_error_ctx = 0, 0
for direction in constants.INST_DIRECTIONS:
(
cur_dirs,
cur_inputs,
cur_tag_preds,
cur_final_preds,
cur_targets,
cur_classes,
cur_nb_spans,
cur_span_starts,
cur_span_ends,
cur_output_spans,
) = ([], [], [], [], [], [], [], [], [], [])
for dir, _input, tag_pred, final_pred, target, cls, nb_spans, span_starts, span_ends, output_spans in zip(
all_dirs,
all_inputs,
all_tag_preds,
all_final_preds,
all_targets,
all_classes,
all_nb_spans,
all_span_starts,
all_span_ends,
all_output_spans,
):
if dir == direction:
cur_dirs.append(dir)
cur_inputs.append(_input)
cur_tag_preds.append(tag_pred)
cur_final_preds.append(final_pred)
cur_targets.append(target)
cur_classes.append(cls)
cur_nb_spans.append(nb_spans)
cur_span_starts.append(span_starts)
cur_span_ends.append(span_ends)
cur_output_spans.append(output_spans)
nb_instances = len(cur_final_preds)
cur_targets_sent = [" ".join(x) for x in cur_targets]
sent_accuracy = TextNormalizationTestDataset.compute_sent_accuracy(
cur_final_preds, cur_targets_sent, cur_dirs, self.lang)
class_accuracy = TextNormalizationTestDataset.compute_class_accuracy(
self.input_preprocessing(list(cur_inputs)),
cur_targets,
cur_tag_preds,
cur_dirs,
cur_output_spans,
cur_classes,
cur_nb_spans,
cur_span_starts,
cur_span_ends,
self.lang,
)
if verbose:
logging.info(
f'\n============ Direction {direction} ============')
logging.info(f'Sentence Accuracy: {sent_accuracy}')
logging.info(f'nb_instances: {nb_instances}')
if not isinstance(class_accuracy, str):
log_class_accuracies = ""
for key, value in class_accuracy.items():
log_class_accuracies += f"\n\t{key}:\t{value[0]}\t{value[1]}/{value[2]}"
else:
log_class_accuracies = class_accuracy
logging.info(f'class accuracies: {log_class_accuracies}')
# Update results
results[direction] = {
'sent_accuracy': sent_accuracy,
'nb_instances': nb_instances,
"class_accuracy": log_class_accuracies,
}
# Write errors to log file
for _input, tag_pred, final_pred, target in zip(
cur_inputs, cur_tag_preds, cur_final_preds,
cur_targets_sent):
if not TextNormalizationTestDataset.is_same(
final_pred, target, direction, self.lang):
if direction == constants.INST_BACKWARD:
error_f.write('Backward Problem (ITN)\n')
itn_error_ctx += 1
elif direction == constants.INST_FORWARD:
error_f.write('Forward Problem (TN)\n')
tn_error_ctx += 1
formatted_input_str = get_formatted_string(
basic_tokenize(_input, lang=self.lang))
formatted_tag_pred_str = get_formatted_string(tag_pred)
error_f.write(f'Original Input : {_input}\n')
error_f.write(f'Input : {formatted_input_str}\n')
error_f.write(
f'Predicted Tags : {formatted_tag_pred_str}\n')
error_f.write(f'Predicted Str : {final_pred}\n')
error_f.write(f'Ground-Truth : {target}\n')
error_f.write('\n')
results['itn_error_ctx'] = itn_error_ctx
results['tn_error_ctx'] = tn_error_ctx
# Running Time
avg_running_time = np.average(all_run_times) / batch_size # in ms
if verbose:
logging.info(
f'Average running time (normalized by batch size): {avg_running_time} ms'
)
results['running_time'] = avg_running_time
# Close log file
error_f.close()
return results
parser.add_argument('--lang',
type=str,
default=constants.ENGLISH,
choices=constants.SUPPORTED_LANGS,
help='Language')
args = parser.parse_args()
# Create the output dir (if not exist)
if not isdir(args.output_dir):
mkdir(args.output_dir)
# Processing
train, dev, test = read_google_data(args.data_dir, args.lang)
for split, data in zip(constants.SPLIT_NAMES, [train, dev, test]):
output_f = open(join(args.output_dir, f'{split}.tsv'),
'w+',
encoding='utf-8')
for inst in data:
cur_classes, cur_tokens, cur_outputs = inst
for c, t, o in zip(cur_classes, cur_tokens, cur_outputs):
t = ' '.join(basic_tokenize(t, args.lang))
if not o in constants.SPECIAL_WORDS:
o_tokens = basic_tokenize(o, args.lang)
o_tokens = [
o_tok for o_tok in o_tokens
if o_tok != constants.SIL_WORD
]
o = ' '.join(o_tokens)
output_f.write(f'{c}\t{t}\t{o}\n')
output_f.write('<eos>\t<eos>\n')