def train(network, min_loss=np.inf):
network.to(config.device)
train_dataloader, valid_dataloader = data.load_training_data()
train_len = len(train_dataloader.dataset)
valid_len = len(valid_dataloader.dataset)
criterion = nn.MSELoss()
optimizer = torch.optim.Adam(params=network.parameters(),
lr=config.learning_rate,
betas=(0.9, 0.995))
for epoch in range(config.epochs):
print(f'#### Epoch {epoch} #####')
train_loss = 0
valid_loss = 0
network.train()
for images, targets in train_dataloader:
optimizer.zero_grad()
outputs = network(images)
loss = criterion(outputs, targets)
train_loss += loss.item() * len(images)
loss.backward()
optimizer.step()
train_loss /= train_len
print(f'Training loss : {train_loss}')
with torch.no_grad():
network.eval()
for images, targets in valid_dataloader:
outputs = network(images)
loss = criterion(outputs, targets)
valid_loss += loss.item() * len(images)
valid_loss /= valid_len
print(f'Valid loss : {valid_loss}')
if valid_loss < min_loss:
min_loss = valid_loss
print('*** save ***')
network.save()
def train():
""" Trains the model. """
x_train, y_train = data.load_training_data()
model = tf.keras.Sequential()
model.add(tf.keras.layers.Flatten(input_shape=utilities.IMG_SIZE))
model.add(tf.keras.layers.Dense(128, activation=tf.nn.relu))
model.add(tf.keras.layers.Dense(64, activation=tf.nn.relu))
model.add(tf.keras.layers.Dense(6, activation=tf.nn.softmax))
model.compile(loss='categorical_crossentropy',
optimizer='rmsprop',
metrics=["accuracy"])
print(model.summary())
model.fit(x_train, y_train, epochs=30)
return model
def main():
"""
The main function.
Arguments:
1. Takes no arguments.
"""
train_data = data.load_training_data()
# function call to load training data
test_data = data.load_test_data()
# function call to load test data
count = CountVectorizer()
# initialize the count vector
tfidf_transformer = TfidfTransformer()
# initialize a tfidf transformer
models_dict = {}
# empty dict
train_tfidf = features.feature_extraction(train_data, count,
tfidf_transformer)
# function call for feature extraction
bayes = naive_bayes(train_data, train_tfidf)
# function call to fit the Naive Bayes classifier
models_dict['Naive Bayes'] = bayes
# add models to dictionary
svm = svm_classifier(train_data, train_tfidf)
# function call to fit SVM Classifier
models_dict['SVM'] = svm
# add models to a dictionary
rand_forest = random_forest_classifier(train_data, train_tfidf)
# function to build random forest classifier
models_dict['Random Forest'] = rand_forest
# add models to dictionary
logistic = logistic_regression_classifier(train_data, train_tfidf)
# function call to build logistic regression
models_dict['Logistic Regression'] = logistic
# add models to dictionary
decision_tree = decision_tree_classifier(train_data, train_tfidf)
# function call for decision tree classifier
models_dict['Decision Tree'] = decision_tree
# add model to the dictionary
predict_test_data(train_data, test_data, models_dict, count,
tfidf_transformer, train_tfidf)
def main(unused_argv):
# Load training and eval data
train_data, train_labels = data.load_training_data('train.csv')
kaggle_classifier = tf.estimator.Estimator(
model_fn=nn_model_fn, model_dir='./model'
)
tensors_to_log = {"probabilities": "softmax_tensor"}
logging_hook = tf.train.LoggingTensorHook(
tensors=tensors_to_log, every_n_iter=100
)
train_input_fn = tf.estimator.inputs.numpy_input_fn(
x={"x": train_data},
y=train_labels,
batch_size=batch_size,
num_epochs=None,
shuffle=True
)
kaggle_classifier.train(
input_fn=train_input_fn,
steps=steps)
eval_input_fn = tf.estimator.inputs.numpy_input_fn(
x={"x": train_data},
y=train_labels,
num_epochs=1,
shuffle=False)
predict_input_fn = tf.estimator.inputs.numpy_input_fn(
x={"x": train_data},
shuffle=False
)
eval_results = kaggle_classifier.evaluate(input_fn=eval_input_fn)
predict_results = kaggle_classifier.predict(input_fn=predict_input_fn)
for item in predict_results:
print(item)
print(eval_results)
def main():
load_dotenv('.env.general')
config = load_config('config.yml')
Path(config.logging.handlers.debug_file_handler.filename).parent.mkdir(
parents=True, exist_ok=True)
Path(config.logging.handlers.info_file_handler.filename).parent.mkdir(
parents=True, exist_ok=True)
logging.config.dictConfig(config.logging)
_logger.info("Loading the data")
x, y = load_training_data()
x_train, x_test, y_train, y_test = split_data(x, y)
with tempfile.TemporaryDirectory() as td:
temp_dir = Path(td)
mlflow.set_experiment(config.experiment.name)
params = {}
tags = {}
metrics = {}
artifacts = {}
with mlflow.start_run():
_logger.info("Fitting the preprocessor")
preprocessor = get_preprocessor()
preprocessor.fit(x_train, y_train)
_logger.info("Preprocessing the training data")
x_train_prep = preprocessor.transform(x_train)
x_test_prep = preprocessor.transform(x_test)
estimator_params, search_space = get_params()
if search_space is None:
estimator, estimator_tags, estimator_metrics, estimator_artifacts = train_run(
estimator_params=estimator_params,
x_train_prep=x_train_prep,
y_train=y_train,
x_test_prep=x_test_prep,
y_test=y_test,
temp_dir=temp_dir)
model = make_pipeline(preprocessor, estimator)
params.update(
{f"estimator_{k}": v
for k, v in estimator_params.items()})
tags.update(
{f"estimator_{k}": v
for k, v in estimator_tags.items()})
metrics.update(estimator_metrics)
artifacts.update(estimator_artifacts)
else:
def hyperopt_objective(search_params):
# This function is called for each set of hyper-parameters being tested by HyperOpt.
run_name = str(len(trials) - 1)
ho_params = {}
ho_tags = {}
ho_metrics = {}
ho_artifacts = {}
search_params = flatten_params(search_params)
search_params = prep_params(search_params)
ho_estimator_params = estimator_params.copy()
ho_estimator_params.update(search_params)
with mlflow.start_run(nested=True, run_name=run_name):
ho_estimator, ho_estimator_tags, ho_estimator_metrics, ho_estimator_artifacts = train_run(
estimator_params=ho_estimator_params,
x_train_prep=x_train_prep,
y_train=y_train,
x_test_prep=x_test_prep,
y_test=y_test,
temp_dir=temp_dir / run_name)
ho_model = make_pipeline(preprocessor, ho_estimator)
ho_params.update({
f"estimator_{k}": v
for k, v in ho_estimator_params.items()
})
ho_tags.update({
f"estimator_{k}": v
for k, v in ho_estimator_tags.items()
})
ho_metrics.update(ho_estimator_metrics)
ho_artifacts.update(ho_estimator_artifacts)
ho_tags['hyperopt'] = True
log_sk_model(ho_model,
registered_model_name=None,
params=ho_params,
tags=ho_tags,
metrics=ho_metrics,
artifacts=ho_artifacts)
loss = 1 - ho_metrics[config.evaluation.primary_metric]
return {
'loss': loss,
'status': STATUS_OK,
'model': ho_model,
'params': ho_params,
'tags': ho_tags,
'metrics': ho_metrics,
'artifacts': ho_artifacts
}
trials = Trials()
fmin(fn=hyperopt_objective,
space=search_space,
algo=tpe.suggest,
trials=trials,
max_evals=config.training.max_evals,
rstate=np.random.RandomState(1),
show_progressbar=False)
model = trials.best_trial['result']['model']
params = trials.best_trial['result']['params']
tags = trials.best_trial['result']['tags']
metrics = trials.best_trial['result']['metrics']
artifacts = trials.best_trial['result']['artifacts']
if config.evaluation.shap_analysis:
_logger.info("Starting shap analysis")
shap_tags, shap_artifacts = shap_analyse(
model=model, x=x_train, temp_dir=Path(temp_dir) / 'shap')
tags.update(shap_tags)
artifacts.update(shap_artifacts)
else:
_logger.info("Shap analysis skipped")
log_sk_model(model,
registered_model_name=None,
params=params,
tags=tags,
metrics=metrics,
artifacts=artifacts)
return (x_train, y_train, x_test,
y_test), model, params, tags, metrics, artifacts
def build_training_data_loader(self) -> InputData:
train_images, train_labels = data.load_training_data()
train_images = train_images / 255.0
return train_images, train_labels
help="If true, uses model.fit() instead of model.fit_generator()",
)
args = parser.parse_args()
config = {
"hyperparameters": {
"global_batch_size": det.Constant(value=32),
"dense1": det.Constant(value=128),
},
"searcher": {"name": "single", "metric": "val_accuracy", "max_steps": 40},
}
config.update(json.loads(args.config))
context = init(config, local=args.local, test=args.test, context_dir=str(pathlib.Path.cwd()))
train_images, train_labels = data.load_training_data()
train_images = train_images / 255.0
train_data = _ArrayLikeAdapter(
x=train_images, y=train_labels, batch_size=context.get_per_slot_batch_size()
)
test_images, test_labels = data.load_validation_data()
test_images = test_images / 255.0
test_data = _ArrayLikeAdapter(
x=test_images, y=test_labels, batch_size=context.get_per_slot_batch_size()
)
model = build_model(context)
if args.use_fit:
model.fit(
The word lengths can significantly affect the quality of encoding
It is recommended to run this on a new dataset if you're not using UCI Medical Data that has been cleaned up.
"""
import pandas as pd
import matplotlib
matplotlib.use('TkAgg')
import matplotlib.pyplot as plt
from tokenize_data import encode_the_words, encode_the_labels
from data import load_testing_data, load_training_data
def analyze_review_length(reviews_int):
reviews_len = [len(x) for x in reviews_int]
# pd.Series(reviews_len).hist()
plt.plot(reviews_len)
average = sum(reviews_len) / len(reviews_len)
plt.show()
print('Average is : ', average)
# pd.Series(reviews_len).describe()
def perform_data_analysis(raw_data):
reviews_int = encode_the_words(raw_data.get('review'))
analyze_review_length(reviews_int)
if __name__ == '__main__':
# simple testing code
raw_data = load_training_data()
# print(raw_data.get('review')[:10])
perform_data_analysis(raw_data)
# plt.figtext(10, 10, figtxt)
# plt.savefig("results/mc_" + data_name_pred + "_pred_highres_wo2.png", dpi=300)
plt.savefig("results/mc_" + data_pred + "_pred_n.png", dpi=200)
plt.close()
table = pd.concat(row, keys=keys).T
# pdb.set_trace()
return table
if __name__ == "__main__":
# equations = ["w0+w1K+w2(KNlogN)", "w0+w1K+w2(KN²logN)", "w0+w1K+w2(KN^w3logN)"]
equations = ["w0+w[1](KNlog²N)", "w0+w1K+w2(KN²logN)", "w0+w1K+w2(KN^w3logN)"]
used_eq = [1, 2, 3] # likelihood function has multiple versions of eqs. here define which ones will be used.
# find and load training data files
x_train, y_train, data_name_train = load_training_data()
total_data_size = len(y_train)
print("total_data_size:", total_data_size)
y_predicted = list()
test_folder_path = "/home/alis/Desktop/project/runtime_prediction/runtimes/test"
files = next(os.walk(test_folder_path))[2]
test_data_sets = sorted(list(set([x[16:-3] for x in files if re.search('np', x)])))
# x_train, y_train = process_train_data(x_data, y_data, 100.0, 1)
# x_train = x_data
# y_train = y_data
# fit the model
trace_pymc = mcmc_fit(x_train, y_train, used_eq)