def test_fit_svm():
# start fitting
sl.train_params = {'probability': True, 'C': 100, 'gamma': 0.1}
print "Starting: ", time_now_str()
# logloss is the score
tscore, valscore = sl.fit_and_validate()
print "Finished: ", time_now_str()
print "Train log loss: {0}, test log loss: {1}".format(tscore, valscore)
def test_fit_svm():
# start fitting
sl.train_params = {'probability': True, 'C': 100, 'gamma': 0.1}
print "Starting: ", time_now_str()
# logloss is the score
tscore, valscore = sl.fit_and_validate()
print "Finished: ", time_now_str()
print "Train log loss: {0}, test log loss: {1}".format(tscore, valscore)
def predict():
tf = TrainFiles('/kaggle/malware/train/mix_lbp', val_path = '/kaggle/malware/test/mix_lbp', labels_file = "/kaggle/malware/trainLabels.csv")
X_train, Y_train, X_test, Y_test = tf.prepare_inputs()
sl_svm = SKSupervisedLearning(SVC, X_train, Y_train, X_test, Y_test)
sl_svm.fit_standard_scaler()
sl_svm.train_params = {'C': 100, 'gamma': 0.01, 'probability': True}
print "Starting SVM: ", time_now_str()
_, ll_svm = sl_svm.fit_and_validate()
print "SVM score: {0:.4f}".format(ll_svm if not prediction else _)
print "Finished training SVM: ", time_now_str()
# neural net
print "Starting NN: ", time_now_str()
trndata = _createDataSet(sl_svm.X_train_scaled, Y_train, one_based = True)
tstdata = _createUnsupervisedDataSet(sl_svm.X_test_scaled)
fnn = predict_nn(trndata)
proba_nn = fnn.activateOnDataset(tstdata)
print "Finished training NN: ", time_now_str()
# no validation labels on actual prediction
if doTrees:
# random forest
sl_ccrf = SKSupervisedLearning(CalibratedClassifierCV, X_train, Y_train, X_test, Y_test)
sl_ccrf.train_params = \
{'base_estimator': RandomForestClassifier(**{'n_estimators' : 7500, 'max_depth' : 200}), 'cv': 10}
sl_ccrf.fit_standard_scaler()
print "Starting on RF: ", time_now_str()
ll_ccrf_trn, ll_ccrf_tst = sl_ccrf.fit_and_validate()
print "RF score: {0:.4f}".format(ll_ccrf_tst if not prediction else ll_ccrf_trn)
sl_ccrf.proba_test.tofile("/temp/sl_ccrf.prob")
sl_svm.proba_test.tofile("/temp/sl_svm.prob")
proba_nn.tofile("/temp/nn.prob")
print "Finished training RF: ", time_now_str()
if prediction:
proba = vote([sl_svm.proba_test, sl_ccrf.proba_test, proba_nn], [2./3., 1./6., 1./3.])
out_labels = "/kaggle/malware/submission33.csv"
task_labels = "/kaggle/malware/testLabels.csv"
labels = [path.splitext(t)[0] for t in tf.get_val_inputs()]
out = write_to_csv(task_labels, labels, proba, out_labels)
else:
# visualize the decision surface, projected down to the first
# two principal components of the dataset
pca = PCA(n_components=2).fit(sl_svm.X_train_scaled)
X = pca.transform(sl_svm.X_train_scaled)
x = np.arange(X[:, 0].min() - 1, X[:, 1].max() + 1, 1)
y = np.arange(X[:, 1].min() - 1, X[:, 1].max() + 1, 1)
xx, yy = np.meshgrid(x, y)
# title for the plots
titles = ['SVC with rbf kernel',
'Random Forest \n'
'n_components=7500',
'Decision Trees \n'
'n_components=7500']
#plt.tight_layout()
plt.figure(figsize=(12, 5))
# predict and plot
for i, clf in enumerate((sl_svm.clf, sl_rfc.clf, sl_trees.clf)):
# Plot the decision boundary. For that, we will assign a color to each
# point in the mesh [x_min, m_max]x[y_min, y_max].
plt.subplot(1, 3, i + 1)
clf.fit(X, Y_train)
Z = clf.predict(np.c_[xx.ravel(), yy.ravel()])
# Put the result into a color plot
Z = Z.reshape(xx.shape)
plt.contourf(xx, yy, Z, cmap=plt.cm.Paired)
plt.axis('off')
# Plot also the training points
plt.scatter(X[:, 0], X[:, 1], c=Y_train, cmap=plt.cm.Paired)
plt.title(titles[i])
plt.tight_layout()
plt.show()
def predict():
tf = TrainFiles('/kaggle/malware/train/mix_lbp',
val_path='/kaggle/malware/test/mix_lbp',
labels_file="/kaggle/malware/trainLabels.csv")
X_train, Y_train, X_test, Y_test = tf.prepare_inputs()
sl_svm = SKSupervisedLearning(SVC, X_train, Y_train, X_test, Y_test)
sl_svm.fit_standard_scaler()
sl_svm.train_params = {'C': 100, 'gamma': 0.01, 'probability': True}
print "Starting SVM: ", time_now_str()
_, ll_svm = sl_svm.fit_and_validate()
print "SVM score: {0:.4f}".format(ll_svm if not prediction else _)
print "Finished training SVM: ", time_now_str()
# neural net
print "Starting NN: ", time_now_str()
trndata = _createDataSet(sl_svm.X_train_scaled, Y_train, one_based=True)
tstdata = _createUnsupervisedDataSet(sl_svm.X_test_scaled)
fnn = predict_nn(trndata)
proba_nn = fnn.activateOnDataset(tstdata)
print "Finished training NN: ", time_now_str()
# no validation labels on actual prediction
if doTrees:
# random forest
sl_ccrf = SKSupervisedLearning(CalibratedClassifierCV, X_train,
Y_train, X_test, Y_test)
sl_ccrf.train_params = \
{'base_estimator': RandomForestClassifier(**{'n_estimators' : 7500, 'max_depth' : 200}), 'cv': 10}
sl_ccrf.fit_standard_scaler()
print "Starting on RF: ", time_now_str()
ll_ccrf_trn, ll_ccrf_tst = sl_ccrf.fit_and_validate()
print "RF score: {0:.4f}".format(
ll_ccrf_tst if not prediction else ll_ccrf_trn)
sl_ccrf.proba_test.tofile("/temp/sl_ccrf.prob")
sl_svm.proba_test.tofile("/temp/sl_svm.prob")
proba_nn.tofile("/temp/nn.prob")
print "Finished training RF: ", time_now_str()
if prediction:
proba = vote([sl_svm.proba_test, sl_ccrf.proba_test, proba_nn],
[2. / 3., 1. / 6., 1. / 3.])
out_labels = "/kaggle/malware/submission33.csv"
task_labels = "/kaggle/malware/testLabels.csv"
labels = [path.splitext(t)[0] for t in tf.get_val_inputs()]
out = write_to_csv(task_labels, labels, proba, out_labels)
else:
# visualize the decision surface, projected down to the first
# two principal components of the dataset
pca = PCA(n_components=2).fit(sl_svm.X_train_scaled)
X = pca.transform(sl_svm.X_train_scaled)
x = np.arange(X[:, 0].min() - 1, X[:, 1].max() + 1, 1)
y = np.arange(X[:, 1].min() - 1, X[:, 1].max() + 1, 1)
xx, yy = np.meshgrid(x, y)
# title for the plots
titles = [
'SVC with rbf kernel', 'Random Forest \n'
'n_components=7500', 'Decision Trees \n'
'n_components=7500'
]
#plt.tight_layout()
plt.figure(figsize=(12, 5))
# predict and plot
for i, clf in enumerate((sl_svm.clf, sl_rfc.clf, sl_trees.clf)):
# Plot the decision boundary. For that, we will assign a color to each
# point in the mesh [x_min, m_max]x[y_min, y_max].
plt.subplot(1, 3, i + 1)
clf.fit(X, Y_train)
Z = clf.predict(np.c_[xx.ravel(), yy.ravel()])
# Put the result into a color plot
Z = Z.reshape(xx.shape)
plt.contourf(xx, yy, Z, cmap=plt.cm.Paired)
plt.axis('off')
# Plot also the training points
plt.scatter(X[:, 0], X[:, 1], c=Y_train, cmap=plt.cm.Paired)
plt.title(titles[i])
plt.tight_layout()
plt.show()