def __init__(self,
meta_file,
root_dir,
transform=None,
pre_processor=None,
max_word_length=32):
self.__meta_file = meta_file
self.__words = list()
self.__root_dir = root_dir
self.__transform = transform
self.__statistics = None
self.__pre_processor = pre_processor
self.__max_word_length = max_word_length
if self.__pre_processor is None:
logger.info("No pre-processor selected.")
else:
logger.info(f"Selected pre-processor: {pre_processor.name}")
with TimeMeasure(enter_msg="Begin meta data loading.",
exit_msg="Finished meta data loading after {}.",
writer=logger.debug):
self.__process_meta_file()
self.__availability_check()
with TimeMeasure(enter_msg="Begin health check.",
exit_msg="Finished health check after {}.",
writer=logger.debug):
self.__health_check()
with TimeMeasure(enter_msg="Begin creating statistics.",
exit_msg="Finished creating statistics after {}.",
writer=logger.debug):
self.__create_statistics()
def text_preprocessor(input_filename,
*,
preprocessor_cls='TextPreprocessor',
custom_stop_words=None,
lem_ignore_patterns=None,
remove_duplicates=False):
cl.section('Text Preprocessor')
input_filename = data_source_file(input_filename)
preprocessor_cls = globals()[preprocessor_cls]
with TimeMeasure('preprocess_text'):
result = preprocess_csv(input_filename,
preprocessor_cls=preprocessor_cls,
custom_stop_words=custom_stop_words,
lem_ignore_patterns=lem_ignore_patterns)
if remove_duplicates:
result = remove_duplicate_text(result)
result = tuple(result)
cl.info('Effective data size: %d' % len(result))
with TimeMeasure('save_preprocessed'):
save_preprocessed(result, input_filename)
def get_data_loaders(meta_path,
images_path,
transformation,
augmentation,
data_loading_config,
pre_processor=None,
max_word_length=32):
relative_train_size = data_loading_config.train_size
batch_size = data_loading_config.batch_size
restore_path = data_loading_config.get("restore_path", default=None)
save_path = data_loading_config.get("save_path", default=None)
with TimeMeasure(enter_msg="Begin initialization of data set.",
exit_msg="Finished initialization of data set after {}.",
writer=logger.debug):
data_set = WordsDataSet(meta_path,
images_path,
transform=transformation,
pre_processor=pre_processor,
max_word_length=max_word_length)
with TimeMeasure(enter_msg="Splitting data set", writer=logger.debug):
if restore_path is not None and os.path.exists(restore_path):
loaded = True
train_data_set, test_data_set = __restore_train_test_split(
restore_path, data_set)
else:
loaded = False
train_size = int(relative_train_size * len(data_set))
test_size = len(data_set) - train_size
train_data_set, test_data_set = random_split(
data_set, (train_size, test_size))
if augmentation is not None:
augmented_data_set = AugmentedDataSet(train_data_set, augmentation)
else:
augmented_data_set = train_data_set
if not loaded:
__save_train_test_split(save_path, train_data_set, test_data_set)
with TimeMeasure(enter_msg="Init data loader", writer=logger.debug):
train_loader = DataLoader(augmented_data_set,
batch_size=batch_size,
shuffle=True,
num_workers=8,
drop_last=False)
train_eval_loader = DataLoader(train_data_set,
batch_size=batch_size,
shuffle=True,
num_workers=8,
drop_last=False)
test_loader = DataLoader(test_data_set,
batch_size=batch_size,
shuffle=True,
num_workers=8,
drop_last=False)
return train_loader, train_eval_loader, test_loader
def model_analyzer(modeldesc, sourcedesc, *, num_top_words=30,
num_top_docs=30, debug=False):
cl.section('LDA Model Analyzer')
cl.info('Model description: %s' % modeldesc)
cl.info('Source description: %s' % sourcedesc)
with TimeMeasure('load_all'):
ldamodel, corpus, prep_items, source_texts = load_all(modeldesc,
sourcedesc)
with TimeMeasure('analyzing'):
prep_ids = tuple(item[0] for item in prep_items)
dictionary = ldamodel.id2word
num_topics = ldamodel.num_topics
topics = [{
'topic_id': i,
'words': get_topic_words(ldamodel, i, num_top_words),
'popularity': 0.0,
'documents': collections.defaultdict(float)
} for i in range(num_topics)]
if debug:
debugfilename = model_file('ldadoctopics-%s.txt' % modeldesc)
with open(debugfilename, 'w', encoding='utf-8') as debugfile:
for index, doc in enumerate(corpus):
text_id = prep_ids[index]
doc_topics = ldamodel.get_document_topics(doc)
text = source_texts[text_id].strip()
debugfile.write('%s -> %r, %s\n' % (text_id, doc_topics,
text))
term_topics_cache = {}
for word in dictionary:
term_topics_cache[word] = ldamodel.get_term_topics(word)
for index, doc in enumerate(corpus):
for topic_id, prob in ldamodel.get_document_topics(doc):
topics[topic_id]['popularity'] += prob
for word, freq in doc:
if word not in dictionary:
continue
for topic_id, prob in term_topics_cache[word]:
topics[topic_id]['documents'][index] += prob * freq
for topic in topics:
topic['documents'] = get_topic_top_docs(topic['documents'],
num_top_docs,
prep_ids, source_texts)
topics = sorted(topics, key=lambda x: x['popularity'], reverse=True)
with TimeMeasure('export_markdown'):
export_markdown(modeldesc, sourcedesc, topics)
def main():
try:
with TimeMeasure():
check_convolution1D()
with TimeMeasure():
check_convolution2D()
except Exception:
sleep(1)
tb = traceback.format_exc()
print(tb, file=sys.stderr)
def text_preprocessor_user(sourcedesc):
cl.section('Text Preprocessor Grouping By User')
assert re.fullmatch(r'[-_0-9a-zA-Z+]+', sourcedesc)
csvfilename = data_source_file('%s.csv' % sourcedesc)
with TimeMeasure('preprocess_text'):
result = list(preprocess_csv(csvfilename))
with TimeMeasure('save_preprocessed'):
savefilename = name_with_title_suffix(csvfilename, '-user')
export_csv(result, savefilename)
def train_single_model(self, model, loaders, total_epochs, device,
de_en_coder, model_id):
train_loader = loaders[0]
train_eval_loader = loaders[1]
test_loader = loaders[2]
for epoch_idx in range(1, self.__environment.max_epochs + 1):
enter_msg = f"Train Epoch: {epoch_idx: 4d} (total: {total_epochs + 1: 4d})"
with TimeMeasure(enter_msg=enter_msg,
writer=logger.info,
print_enabled=True) as tm:
current_learning_rate = self.__learning_rate_adaptor(
total_epochs)
loss, words = self.core_training(model, train_loader,
current_learning_rate, device,
de_en_coder)
logger.info(f"loss: {loss}")
total_epochs += 1
if epoch_idx % self.__environment.save_interval is 0:
train_metrics = evaluate_model(
de_en_coder=de_en_coder,
word_prediction=self.__word_prediction,
model=model,
data_loader=train_eval_loader,
device=device)
test_metrics = evaluate_model(
de_en_coder=de_en_coder,
word_prediction=self.__word_prediction,
model=model,
data_loader=test_loader,
device=device)
model_data = {
"name": f"{model.__class__.__name__}_{model_id:03d}"
}
self.__stats.save_per_period(total_epochs, train_metrics,
test_metrics, model_data)
def main():
xtensor_benchmark_parameters = {
"format": "console",
"min_time": 0.25,
"repetitions": 10,
"report_aggregates_only": True
}
xvigra_benchmark_parameters = {
"format": "console",
"min_time": 1,
"repetitions": 10,
"report_aggregates_only": True
}
benchmark_parameters = {
"xtensor": xtensor_benchmark_parameters,
"xvigra": xvigra_benchmark_parameters
}
benchmark_folders = {
"xtensor": (
"benchmark_normalizing",
"benchmark_transpose-view",
"benchmark_reshape-view",
"benchmark_tensor_copy_complete_X",
"benchmark_tensor_copy_complete_Y",
"benchmark_tensor_copy_complete_Z",
"benchmark_strided-view_copy_complete_X",
"benchmark_strided-view_copy_complete_Y",
"benchmark_strided-view_copy_complete_Z",
"benchmark_strided-view_copy_paddingStride_X",
"benchmark_strided-view_copy_paddingStride_Y",
"benchmark_strided-view_copy_paddingStride_Z",
"benchmark_view_copy_complete_X",
"benchmark_view_copy_complete_Y",
"benchmark_view_copy_complete_Z",
"benchmark_view_copy_paddingStride_X",
"benchmark_view_copy_paddingStride_Y",
"benchmark_view_copy_paddingStride_Z",
),
"xvigra": (
"benchmark_convolve1D_inputSize_channelFirst",
"benchmark_convolve1D_inputSize_channelLast",
# "benchmark_convolve2D_inputSize_channelFirst",
# "benchmark_convolve2D_inputSize_channelLast",
# "benchmark_separableConvolve1D_inputSize",
# "benchmark_separableConvolve2D_inputSize",
# "benchmark_separableConvolve1D_kernelSize",
# "benchmark_separableConvolve2D_kernelSize"
)
}
build_all()
for folder_name, benchmark_files in benchmark_folders.items():
for file_name in benchmark_files:
with TimeMeasure(f"{'─' * 100}\nRunning {file_name}:", f"Total time: {{}}\n{'─' * 100}\n"):
call_benchmark(file_name, benchmark_parameters[folder_name], folder=folder_name)
def __save_progress(self, total_epochs, model, loss):
with TimeMeasure(enter_msg="Saving progress...",
writer=logger.debug,
print_enabled=self.__print_enabled):
path = p_join("trained_models", self.__name,
"epoch-{:05d}.pt".format(total_epochs))
save_checkpoint(path, total_epochs, model, loss,
self.__environment)
def text_preprocessor_twlda(sourcedesc,
*,
tweet_min_length=3,
user_min_tweets=1,
remove_duplicates=False):
cl.section('Text Preprocessor For Twitter-LDA')
assert re.fullmatch(r'[-_0-9a-zA-Z+]+', sourcedesc)
input_filename = data_source_file('%s.csv' % sourcedesc)
with TimeMeasure('preprocess_text'):
prepdata, sourcedata = preprocess_csv(input_filename, tweet_min_length,
user_min_tweets,
remove_duplicates)
with TimeMeasure('save_preprocessed'):
save_preprocessed(prepdata, sourcedata)
def get_data_loaders_cv(meta_path,
images_path,
transformation,
augmentation,
data_loading_config,
pre_processor=None,
number_of_splits=3):
batch_size = data_loading_config.batch_size
with TimeMeasure(enter_msg="Begin initialization of data set.",
exit_msg="Finished initialization of data set after {}.",
writer=logger.debug):
data_set = WordsDataSet(meta_path,
images_path,
transform=transformation,
pre_processor=pre_processor)
with TimeMeasure(enter_msg="Splitting data set", writer=logger.debug):
train_test_array = cv_split(data_set, number_of_splits, augmentation)
with TimeMeasure(enter_msg="Init data loader", writer=logger.debug):
loader_array = []
for train_set, test_set, augmented_set in train_test_array:
train_eval_loader = DataLoader(train_set,
batch_size=batch_size,
shuffle=True,
num_workers=8,
drop_last=False)
test_loader = DataLoader(test_set,
batch_size=batch_size,
shuffle=True,
num_workers=8,
drop_last=False)
train_loader = DataLoader(augmented_set,
batch_size=batch_size,
shuffle=True,
num_workers=8,
drop_last=False)
loader_array.append((train_loader, train_eval_loader, test_loader))
return loader_array
def twitter_lda(*, output_desc, topics, iteration, alpha_g=None,
beta_word=0.01, beta_b=0.01, gamma=20,
show_console_output=True):
cl.section('Twitter-LDA Runner')
cl.info('Output description: %s' % output_desc)
assert re.fullmatch(r'[-_0-9a-zA-Z]+', output_desc)
if alpha_g is None:
alpha_g = 50 / topics
set_parameters(topics, alpha_g, beta_word, beta_b, gamma, iteration)
with TimeMeasure('Twitter-LDA training'):
run_twlda(show_console_output=show_console_output)
move_result(output_desc)
def train(self, train_loader, de_en_coder, current_epoch=0, device="cpu"):
logger.info("Enter training mode.")
total_epochs = current_epoch
last_save, loss = 0, None
stats = Statistics.get_instance(self.__name)
logger.info(
f"Try warm start? - {'Yes' if self.__environment.warm_start else 'No'}"
)
if self.__environment.warm_start:
try:
total_epochs, state_dict, loss = self.__load_progress()
self.__environment.update_max_epochs(total_epochs)
self.__model.load_state_dict(state_dict)
except RuntimeError:
logger.warning("Warm start was not possible!")
logger.info(
f"Begin training for {self.__environment.max_epochs} epochs")
for epoch_idx in range(1, self.__environment.max_epochs + 1):
enter_msg = f"Train Epoch: {epoch_idx: 4d} (total: {total_epochs + 1: 4d})"
with TimeMeasure(enter_msg=enter_msg,
writer=logger.info,
print_enabled=self.__print_enabled) as tm:
current_learning_rate = self.__learning_rate_adaptor(
total_epochs)
loss, words = self.core_training(train_loader,
current_learning_rate, device,
de_en_coder)
logger.info("loss: {}".format(loss))
total_epochs += 1
stats.save_per_epoch(total_epochs, tm.delta, loss, words)
if epoch_idx % self.__environment.save_interval is 0:
last_save = total_epochs
self.__save_progress(total_epochs, self.__model, loss)
self.__save_period_stats(total_epochs)
if last_save < total_epochs:
logger.info("final save")
self.__save_progress(total_epochs, self.__model, loss)
self.__save_period_stats(total_epochs)
return self.__model
def lda_topic_model(input_filename, keyword, size, *, num_topics,
iterations=50, passes=1, chunksize=2000, eval_every=10,
verbose=False, gamma_threshold=0.001, filter_no_below=5,
filter_no_above=0.5, filter_keep_n=100000,
open_browser=True):
cl.section('LDA Topic Model Training')
cl.info('Keyword: %s' % keyword)
cl.info('Data size: %d' % size)
cl.info('Number of topics: %d' % num_topics)
cl.info('Iterations: %d' % iterations)
cl.info('Passes: %d' % passes)
cl.info('Chunk size: %d' % chunksize)
cl.info('Eval every: %s' % eval_every)
cl.info('Verbose: %s' % verbose)
cl.info('Gamma Threshold: %f' % gamma_threshold)
cl.info('Filter no below: %d' % filter_no_below)
cl.info('Filter no above: %f' % filter_no_above)
cl.info('Filter keep n: %d' % filter_keep_n)
assert re.fullmatch(r'[-_0-9a-zA-Z+]+', keyword)
input_filename = data_source_file(input_filename)
description = '%s-%d-%d-%dx%d-%s' % (keyword, size, num_topics, iterations,
passes, time.strftime('%Y%m%d%H%M%S'))
if verbose:
log_filename = log_file('ldalog-%s.log' % description)
logging.basicConfig(format='%(asctime)s : %(levelname)s : %(message)s',
level=logging.DEBUG, filename=log_filename)
cl.info('Writing logs into file: %s' % log_filename)
with TimeMeasure('load_preprocessed_text'):
preprocessed_texts = file_read_json(input_filename)
preprocessed_texts = [item[1] for item in preprocessed_texts]
with TimeMeasure('gen_dict_corpus'):
cl.progress('Generating dictionary and corpus...')
dictionary = Dictionary(preprocessed_texts, prune_at=None)
dictionary.filter_extremes(no_below=filter_no_below,
no_above=filter_no_above,
keep_n=filter_keep_n)
dictionary.compactify()
corpus = [dictionary.doc2bow(text) for text in preprocessed_texts]
corpusfilename = model_file('ldacorpus-%s.json' % description)
file_write_json(corpusfilename, corpus)
cl.success('Corpus saved as: %s' % corpusfilename)
with TimeMeasure('training'):
cl.progress('Performing training...')
with NoConsoleOutput():
ldamodel = LdaMulticore(corpus, workers=N_WORKERS,
id2word=dictionary, num_topics=num_topics,
iterations=iterations, passes=passes,
chunksize=chunksize, eval_every=eval_every,
gamma_threshold=gamma_threshold,
alpha='symmetric', eta='auto')
cl.success('Training finished.')
with TimeMeasure('save_model'):
modelfilename = 'ldamodel-%s' % description
ldamodel.save(model_file(modelfilename))
cl.success('Model saved as: %s' % modelfilename)
with TimeMeasure('measure_coherence'):
cl.progress('Measuring topic coherence...')
measure_coherence(ldamodel, preprocessed_texts, corpus, dictionary)
with TimeMeasure('vis_save'):
cl.progress('Preparing visualization...')
vis = pyLDAvis.gensim.prepare(ldamodel, corpus, dictionary)
htmlfilename = 'ldavis-%s.html' % description
htmlfilename = report_file(htmlfilename)
pyLDAvis.save_html(vis, htmlfilename)
cl.success('Visualized result saved in file: %s' % htmlfilename)
if open_browser:
open_html_in_browser(htmlfilename)
# Train (with different number of topics)
for topics in num_topics_range:
cl.info('Running with %d topics' % topics)
retry_until_success(twitter_lda,
output_desc='java-%d' % topics,
topics=topics,
iteration=ITERATIONS,
show_console_output=True)
# Analyze (Perplexity Plot + HTML Reports + Compress)
report_files = []
plot_file, minima_points = plot_diff_topics(num_topics_range, 'java',
r'Perplexity is ([\d.]+)',
pipe_encoding)
report_files.append(plot_file)
report_points = minima_points if REPORT_ONLY_MINIMA else num_topics_range
for topics in report_points:
report_files.append(
visualization_twlda(KEYWORD,
'java-%d' % topics,
'%s-%d' % (tag, topics),
userinfo_file,
open_browser=False))
compress_report_files(tag, report_files)
if __name__ == '__main__':
with TimeMeasure('train_task'):
main()
PROXY = None # The proxy used to collect Twitter data. (None or 'http://xxx')
TWSCRAPE_POOLSIZE = 20 # Number of processes for twitterscraper.
def get_usernames(tweets_file):
return list(
set(row['user'] for row in csv_reader(data_source_file(tweets_file))))
def main():
tweets_file = 'twdata-java.csv'
userinfo_file = 'twusers-java.csv'
# Retrieve (Scrape + Recover Retweets + Get User Info)
data_retriever('twitterscraper',
QUERY,
tweets_file,
lang='en',
proxy=PROXY,
remove_duplicates=False,
twscrape_poolsize=TWSCRAPE_POOLSIZE,
twscrape_begindate=datetime.date.today() - DATEBACK)
tweets_file_recovered = retweets_recover(tweets_file)
usernames = get_usernames(tweets_file_recovered)
user_info_retriever(usernames, userinfo_file)
if __name__ == '__main__':
with TimeMeasure('crawl_task'):
main()
def main(config_name):
logger.info(f"Run with config '{config_name}'.")
with TimeMeasure(enter_msg="Setup everything",
exit_msg="Setup finished after {}.",
writer=logger.debug):
device = get_available_device()
logger.info(f"Active device: {device}")
config = Configuration(f"../configs/{config_name}.json")
prediction_config = config["prediction"]
data_set_config = config["data_set"]
data_loading_config = config["data_loading"]
training_config = config["training"]
environment_config = config["training/environment"]
model_config = config["model"]
# in char list we use '|' as a symbol the CTC-blank
de_en_coder = WordDeEnCoder(list(prediction_config.char_list))
word_predictor = setup_decoder_from_config(prediction_config, "eval")
word_predictor_debug = setup_decoder_from_config(
prediction_config, "debug")
model = get_model_by_name(model_config.name)(
model_config.parameters).to(device)
main_locals = locals()
transformations = build_transformations(
data_loading_config.transformations, main_locals)
augmentations = data_loading_config.if_exists(
path="augmentations",
runner=lambda augms: build_augmentations(augms, main_locals),
default=None)
augmentation = transforms.Compose(
augmentations) if augmentations is not None else None
train_loader, train_eval_loader, test_loader = get_data_loaders(
meta_path=data_set_config.meta_path,
images_path=data_set_config.images_path,
transformation=transforms.Compose(transformations),
augmentation=augmentation,
data_loading_config=data_loading_config,
pre_processor=pre_processor(config),
max_word_length=data_set_config("max_word_length"))
environment = TrainingEnvironment.from_config(environment_config)
if "small" in model_config.name.lower():
learning_rate = dynamic_learning_rate_small
else:
learning_rate = dynamic_learning_rate_big
trainer = Trainer(name=training_config.name,
model=model,
word_prediction=word_predictor_debug,
dynamic_learning_rate=learning_rate,
environment=environment)
with TimeMeasure(enter_msg="Load pre-trained model.",
exit_msg="Finished loading after {}.",
writer=logger.debug):
model = trainer.load_latest_model()
with TimeMeasure(writer=logger.debug):
result = list()
with torch.no_grad():
for batch_idx, (feature_batch,
label_batch) in enumerate(test_loader):
feature_batch = feature_batch.to(device)
label_batch = [
right_strip(word, 1.0)
for word in word_tensor_to_list(label_batch)
]
label_batch = [
de_en_coder.decode_word(word) for word in label_batch
]
model.init_hidden(batch_size=feature_batch.size()[0],
device=device)
output = F.softmax(model(feature_batch), dim=-1)
output = np.array(output.cpu())
prediction = word_predictor(output)
for i in range(len(prediction)):
token, target = prediction[i], label_batch[i]
character_error_rate = Levenshtein.distance(
token, target) / len(target)
result.append((target, token, character_error_rate))
result = sorted(result, key=lambda row: -row[2])
for idx, (expectation, prediction, error) in enumerate(result):
logger.info(
f"{idx:05d} | {expectation:20s} | {prediction:20s} | {error:6.4f}"
)