def compute_summary_criterion(sequence, summary, L):
"""Computes the music summary criterion.
Parameters
----------
sequence : np.array((M, n_features))
Sequence of features.
summary : list
List of P np.arrays of shape(N, n_features)
L : int > 0 < N
The length of each shingle.
Returns
-------
criterion : float >= 0
The music summary criterion
compression : float >= 0
The compression measure
disjoint : float >= 0
The disjoint information measure
"""
compression = compute_compression_measure(sequence, summary)
disjoint = compute_disjoint_information(summary, L)
criterion = utils.f_measure(compression, disjoint)
return criterion, compression, disjoint
def test(model, sample_x, sample_y, test_arg_dict, mode):
print '\n\t%s Index: ' % mode,
start = time.time()
predicts = []
errors = []
sample_index = 0
for index in xrange(len(sample_x)):
batch_x = sample_x[index]
batch_y = sample_y[index]
for b_index in xrange(len(batch_x)):
sample_index += 1
if sample_index % 100 == 0:
print '%d' % sample_index,
sys.stdout.flush()
pred, error = model([batch_x[b_index]], [batch_y[b_index]])
predicts.append(pred[0])
errors.append(error[0])
end = time.time()
total, correct = count_correct(errors)
print '\tTime: %f seconds' % (end - start)
print '\t%s Accuracy: %f' % (mode, correct / total)
return f_measure(predicts, sample_y, test_arg_dict), predicts
result_rgb,
gt_src.shape[::-1], interpolation=cv2.INTER_LINEAR) * 255).astype(
np.uint8) # interpolate small picture -> big. But why x255?
result_rgbd = (cv2.resize(
result_rgbd, gt_src.shape[::-1], interpolation=cv2.INTER_LINEAR) *
255).astype(np.uint8)
result_depth = (cv2.resize(
result_depth, gt_src.shape[::-1], interpolation=cv2.INTER_LINEAR) *
255).astype(np.uint8)
# now they contains real images look like mask from gt
ddu_mae = np.mean(
np.abs(result_rgbd / 255.0 -
result_depth / 255.0)) # compare original sizes
result_d3net = result_rgbd if ddu_mae < 0.15 else result_rgb # some magic choice
if save_eval_images:
Image.fromarray(result_d3net).save(
os.path.join(result_path, 'D3Net', dataset, id + '.png'))
result_d3net = result_d3net.astype(np.float64) / 255.0 # why ?
gt_src = gt_src / 255.0
mae += np.mean(np.abs(result_d3net - gt_src))
f_score += f_measure(result_d3net,
gt_src) # f_score.shape -> torch.Size([255])
print(
f'MAE = {mae/len(test_loader)}, F-Score = { (f_score/len(test_loader)).max().item() }'
) # why so for f_score?
random_state=0)
# Normalizando as features
X_train = feature_scaling(X_train)
X_test = feature_scaling(X_test)
# Treinando o modelo de Regressão Logistica com o Conjunto de Treinamento
classifier = LogisticRegression(random_state=0)
classifier.fit(X_train, y_train)
# Prevendo os resultados do modelo criado com o conjunto de testes
y_pred = classifier.predict(X_test)
# Criando a matriz de confusão com o conjunto de testes
tn, fp, fn, tp = confusion_matrix(y_test, y_pred).ravel()
# Visualizando a métrica de acurácia através das funções criandas e da bibilioteca sklearn
accuracy(tp, fp, fn, tn)
classifier.score(X_test, y_test)
# Exibindo o f-measure
f_measure(tp, fp, fn)
f1_score(y_test, y_pred)
# Exibindo os resultados do conjunto de treinamento
plot_results_class(X_train, y_train, classifier,
'Regressão Logística (Conj. de Treinamento)')
# Exibindo os resultados do conjunto de testes
plot_results_class(X_test, y_test, classifier,
'Regressão Logística (Conj. de Testes)')
'SVC': SVC(kernel = 'rbf', random_state = 0)}
# Criando dataframe que irá guardar os resultados finais dos classificadores
df_results = pd.DataFrame(columns=['clf', 'acc', 'prec', 'rec', 'f1', 'inform', 'mark'], index=None)
# Itereando os classificadores
for name, estim in estimators.items():
# print("Treinando Estimador {0}: ".format(name))
# Treinando os classificadores com Conjunto de Treinamento
estim.fit(X_train, y_train)
# Prevendo os resultados do modelo criado com o conjunto de testes
y_pred = estim.predict(X_test)
# Criando a matriz de confusão com o conjunto de testes
tn, fp, fn, tp = confusion_matrix(y_test, y_pred).ravel()
# print("accuracy {0}: ".format(accuracy(tp, fp, fn, tn)))
# Armazenando as métricas de cada classificador em um dataframe
df_results.loc[len(df_results), :] = [name, accuracy(tp, fp, fn, tn), precision (tp, fp), recall(tp, fn),
f_measure(tp, fp, fn), informedness(tp, fp, fn, tn), markdness(tp, fp, fn, tn)]
# Exibindo os resultados finais
df_results