def _validate_model(self, x: np.ndarray, y: np.ndarray, validation_file_name: str = "validation.json") -> dict:
logging.info("Creating predictions ...")
y_predicted_categories = self._model.predict(x, batch_size=self._batch_size)
gc.collect()
from sklearn.metrics.classification import accuracy_score, precision_recall_fscore_support
y_expected_1dim = self._label_enc.max_category(y)
y_predicted_1dim = self._label_enc.max_category(y_predicted_categories)
logging.info("Results:")
logging.info("{}".format(precision_recall_fscore_support(y_true=y_expected_1dim, y_pred=y_predicted_1dim)))
accuracy = accuracy_score(y_true=y_expected_1dim, y_pred=y_predicted_1dim)
logging.info("{}".format(accuracy))
from sklearn.metrics.classification import classification_report
logging.info("\n{}".format(classification_report(y_true=y_expected_1dim,
y_pred=y_predicted_1dim,
target_names=["neg", "pos"],
)))
results = classification_report(y_true=y_expected_1dim,
y_pred=y_predicted_1dim,
target_names=["neg", "pos"],
output_dict=True)
results["accuracy"] = accuracy
write_text_file(
file_path=self._experiment_folder / validation_file_name,
text=json.dumps(results))
return results
def ensemble_test():
file_src_dict = {'embedding_file': './data/word_embedding.pkl'}
with open(file_src_dict['embedding_file'],
'rb') as f: # embedding is a 2d-list with size :vocab_size*dim
embeddings = pickle.load(f)
with open('./data/val.pkl',
'rb') as f: # embedding is a 2d-list with size :vocab_size*dim
val_q, val_r, val_label = pickle.load(f)
all_pred_score = []
all_pred_label = []
models = ['./base/model.1']
model_name = ['base']
graphs = [tf.Graph() for i in range(0, len(models))]
for i in range(0, len(graphs)):
with graphs[i].as_default():
arnn = ARNN(embedding=embeddings)
if model_name[i] == 'base':
arnn.build_base_model(training=False)
pred_label, pred_score = arnn.predict(model_path=models[i],
data_q=val_q,
data_r=val_r)
all_pred_score.append(pred_score)
all_pred_label.append(pred_label)
del arnn
final_score = (all_pred_score[0] + all_pred_score[1])
for i in range(2, len(all_pred_score)):
final_score += all_pred_score[i]
final_score /= len(all_pred_score)
final_label = [int(s[1] > s[0]) for s in final_score]
if val_label is not None:
for pred_l in all_pred_label:
print(classification_report(val_label, pred_l))
print(classification_report(val_label, final_label))
def eval(model, cfg, mode='val', cuda=True):
data_info = cfg.dataset[mode]
data_reader = DataReader(
ann_files=[data_info['ann_file']],
img_dirs=[data_info['img_prefix']],
transform=None,
mode='val',
img_scale=data_info['img_scale'],
keep_ratio=data_info['keep_ratio'],
)
data_loader = DataLoader(data_reader,
collate_fn=collate_fn,
**cfg.val_data_loader)
y_true, y_pred = [], []
model.eval()
for step, (data, target) in tqdm(enumerate(data_loader)):
# inputs = torch.stack(data)
# target = torch.from_numpy(np.array(target)).type(torch.LongTensor)
inputs = data
targets = target
if cuda:
inputs = inputs.cuda()
targets = targets.cuda()
with torch.no_grad():
outputs = model(inputs)
outs = nn.functional.softmax(outputs, dim=1)
pred = torch.argmax(outs, dim=1)
y_true.extend(list(targets.cpu().detach().numpy()))
y_pred.extend(list(pred.cpu().detach().numpy()))
model.train()
return classification_report(y_true, y_pred, output_dict=True), \
classification_report(y_true, y_pred, output_dict=False)
def evalulate_on_cache(self):
grapheme_logits_all = np.vstack(self.grapheme_logits_cache)
vowel_logits_all = np.vstack(self.vowel_logits_cache)
consonant_logits_all = np.vstack(self.consonant_logits_cache)
labels_all = np.vstack(self.labels_cache)
grapheme_preds = np.argmax(grapheme_logits_all, axis=1)
vowels_preds = np.argmax(vowel_logits_all, axis=1)
consonant_preds = np.argmax(consonant_logits_all, axis=1)
grapheme_clf_result = classification_report(labels_all[:, 0], grapheme_preds, output_dict=True)
vowels_clf_result = classification_report(labels_all[:, 1], vowels_preds, output_dict=True)
consonant_clf_result = classification_report(labels_all[:, 2], consonant_preds, output_dict=True)
kaggle_score = (grapheme_clf_result['macro avg']['recall'] * 2 + vowels_clf_result['macro avg']['recall'] +
consonant_clf_result['macro avg']['recall']) / 4
acc = np.mean(self.acc_cache)
loss = np.mean(self.loss_cache)
result = {
'grapheme_clf_result': grapheme_clf_result,
'vowels_clf_result': vowels_clf_result,
'consonant_clf_result': consonant_clf_result,
'kaggle_score': kaggle_score,
#'preds_labels': preds_labels,
'acc': acc,
'loss': loss
}
return result
def evaluate(self, y_predict, y_true, target_names=None):
if self.config.task_type == 'classification':
classification_report(y_true=y_true,
y_pred=y_predict,
target_names=target_names)
elif self.config.task_type == 'ranking':
roc_auc_score(y_true=y_true, y_score=y_predict)
elif self.config.task_type == 'regression':
r2_score(y_true=y_true, y_pred=y_predict)
def eval(test_y, sys_y, pipeline_name, data_dir):
print(classification_report(test_y, sys_y))
report = classification_report(test_y, sys_y, output_dict=True)
df = pd.DataFrame(report).transpose()
dir = data_dir.split('/')[-2]
df.to_csv(f'../results/{dir}/{pipeline_name}.csv', index=False)
return report
def get_f1_scores(inp_train, out_train):
inp_test, out_test = init_test_dataframes()
models = [
AdaBoostClassifier(n_estimators=300, learning_rate=0.19, algorithm='SAMME.R'),
LogisticRegression(random_state=0, class_weight='balanced', solver='lbfgs', multi_class='ovr', penalty='l2'),
]
for model in models:
model.fit(inp_train, out_train)
print str(model).split('(')[0]
print classification_report(out_test, model.predict(inp_test))
def testforest(self, test, testlabel,forest):
outputtest= forest.predict(test)
accuracytrain = accuracy_score(testlabel, outputtest)
print "The size of the test set is"
print np.shape(test)
print "The accuracy for the test set is %r" %accuracytrain, "and the confusion matrix is"
#print confusion_matrix(outputtest,testlabel)
print classification_report(testlabel, outputtest)
# generate probability
outputproba=forest.predict_proba(test)
outperfor={'prob0':outputproba[:,0],'prob1':outputproba[:,1],'output':outputtest,'target':testlabel}
outframe=DataFrame(outperfor)
print outframe
#outframe.to_csv(r'D:\allprob.csv', header=0)
return accuracytrain, outframe
def evaluate_val_for_train(self, sess, data):
val_q, val_r, val_labels = data
all_pred_label = []
low = 0
batch_size_for_val=300
while True:
n_sample = min(low + batch_size_for_val, len(val_labels)) - low
batch_q_len = self.get_sequences_length(val_q[low:low + n_sample], maxlen=self.max_sentence_len)
batch_q = pad_sequences(val_q[low:low + n_sample], padding='post')
batch_r_len = self.get_sequences_length(val_r[low:low + n_sample], maxlen=self.max_sentence_len)
batch_r = pad_sequences(val_r[low:low + n_sample], padding='post')
feed_dict = {
self.input_q: np.array(batch_q),
self.q_sequence_len: np.array(batch_q_len),
self.input_r: np.array(batch_r),
self.r_sequence_len: np.array(batch_r_len),
self.input_y: np.array(val_labels[low:low + n_sample]),
self.keep_prob:1.0
}
pred_label,loss = sess.run([self.class_label_pred,self.total_loss], feed_dict=feed_dict)
all_pred_label.append(pred_label)
low = low + batch_size_for_val
if low >= len(val_labels):
break
all_pred_label = np.concatenate(all_pred_label, axis=0)
return loss,classification_report(val_labels,all_pred_label)
def print_cummulative_clf_report(self):
"""
Prints the cumulated classification report for all added runs
:return:
"""
log.info('Classification report:\n\n' + classification_report(
self.y_true, self.y_pred, target_names=['Benign', 'Malicious']))
def test(self, input_xy, target_names=None, **kwargs):
xs, trues = zip(*input_xy)
xs = np.stack(xs).reshape(-1, reduce(operator.mul, xs[0].shape))
trues = np.stack(trues)
results = self.predict(xs)
print(classification_report(trues, results, target_names=target_names))
return f1_score(trues, results, average="micro")
def test_model(classifier, X, y):
y_pred = classifier.predict(X)
conf_matrix = confusion_matrix(y, y_pred)
accuracy = accuracy_score(y, y_pred)
report = classification_report(y, y_pred)
print(conf_matrix)
print(report)
print(accuracy)
def _mod_report(self, mod):
report = classification_report(self.y_test, mod.predict(self.x_test))
train_auc = roc_auc_score(self.y_train,
mod.predict_proba(self.x_train)[:, 1])
test_auc = roc_auc_score(self.y_test,
mod.predict_proba(self.x_test)[:, 1])
return report, train_auc, test_auc
def predict(self, X, trees, y_test):
reports = []
for tree in trees:
y_predict = tree.predict(X)
reports.append(classification_report(y_predict, y_test))
return reports
def run(self):
train_X, train_y, dev_X, dev_y = self.extract_train_dev_data()
if not self.dev_stage:
test_X, test_y = self.extract_test_data()
for c in self.classifiers:
logger.info(" Classifier: {}".format(c.name))
c.train(train_X, train_y)
if self.dev_stage:
logger.info(" Running classifier on dev data")
pred_y = c.predict(dev_X)
print('dev labels')
print(set(train_y))
logger.info(classification_report(dev_y, pred_y))
else:
logger.info(" Running classifier on test data")
pred_y = c.predict(test_X)
print('test labels')
print(set(train_y))
logger.info(classification_report(test_y, pred_y))
def test(self, input_xy, target_names=None, **kwargs):
input_x = []
trues = []
for x, y in input_xy:
input_x.append(x)
trues.append(y.argmax())
results = self.predict(input_x, prob=False)
trues = np.array(trues)
print(classification_report(trues, results, target_names=target_names))
return f1_score(trues, results, average="micro")
def compute(self, k=10):
self.datasets = (X, y) = self.transformer(self.origin_datasets)
kf = KFold(n_splits=10, shuffle=True)
self.clfs = []
for train_index, test_index in kf.split(X):
X_train, X_test = X[train_index], X[test_index]
y_train, y_test = y[train_index], y[test_index]
clf = self.clf_type()
clf.fit(X_train, y_train)
y_pred = clf.predict(X_test)
print(classification_report(y_test, y_pred))
def test_classification(self, test, testlabel,bestmodel):
# bestmodel=bestmodel
outputtest = bestmodel.predict(test)
accuracytest = accuracy_score(testlabel, outputtest)
print ("The accuracy for the test set is %r" %accuracytest, "and the confusion matrix is")
print (confusion_matrix(outputtest,testlabel))
print( classification_report(testlabel, outputtest))
# probaout=bestmodel.predict_prob(test)
# probaout= DataFrame(probaout)
# print probaout
return outputtest
def calc_metrics(self, pred_labels, true_labels):
from sklearn.metrics.classification import classification_report
print(classification_report(true_labels, pred_labels))
acc = accuracy_score(true_labels, pred_labels)
precision = precision_score(true_labels, pred_labels, average='macro')
recall = recall_score(true_labels, pred_labels, average='macro')
f1 = f1_score(true_labels, pred_labels, average='macro')
return {'acc': acc, 'p': precision, 'r': recall, 'f1': f1}
def random_forrest(dir_models, ticket, x, x_test, y, y_test):
print('getting model...RandomForest')
clf = RandomForestClassifier(verbose=False, warm_start=True)
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(clf,
dir_models + ticket + '_random_forrest_' + str(id) + '.pkl')
return clf.score(x_test, y_test)
def evaluate(self, inputs: list, labels: list):
predictions = []
labels_max = []
for j in range(0, len(inputs)):
input_excample = inputs[j]
data_label = labels[j]
nn_output = self._nn.predict(input_excample)
predicted_index = np.argmax(nn_output)
predictions.append(predicted_index)
label_index = np.argmax(data_label)
labels_max.append(label_index)
return classification_report(labels_max, predictions, output_dict=False)
def test_classification(self, test, testlabel, bestmodel):
# bestmodel=bestmodel
outputtest = bestmodel.predict(test)
accuracytest = accuracy_score(testlabel, outputtest)
print("The accuracy for the test set is %r" % accuracytest,
"and the confusion matrix is")
print(confusion_matrix(outputtest, testlabel))
print(classification_report(testlabel, outputtest))
# probaout=bestmodel.predict_prob(test)
# probaout= DataFrame(probaout)
# print probaout
return outputtest
def compare():
with open('./output.txt', 'r', encoding='utf-8') as f:
pred_label = []
for line in f:
arr = line.strip('\n').split('\t')
pred_label.append(int(arr[1]))
with open('./data/test.csv', 'r', encoding='utf-8') as f:
label = []
for line in f:
lineno, sen1, sen2, tmp = line.strip().split('\t')
label.append(int(tmp))
print(classification_report(label, pred_label))
def evaluate(self,sess,vocab,token_indices, character_indices_padded, token_lengths, pattern ,label_indices,datatype='train'):
all_predictions = []
all_y_true = []
# output_filepath = os.path.join(stats_graph_folder, '{1:03d}_{0}.txt'.format(dataset_type,epoch_number))
# output_file = codecs.open(output_filepath, 'w', 'UTF-8')
# original_conll_file = codecs.open(dataset_filepaths[dataset_type], 'r', 'UTF-8')
for i in range(len(token_indices)):
feed_dict = {
self.input_token_indices: token_indices[i],
self.input_token_character_indices: character_indices_padded[i],
self.input_token_lengths: token_lengths[i],
self.input_token_patterns: pattern[i],
self.dropout_keep_prob: 1.,
}
unary_scores, transition_params_trained = sess.run([self.unary_scores, self.transition_parameters],
feed_dict)
predictions, _ = tf.contrib.crf.viterbi_decode(unary_scores, transition_params_trained)
predictions = predictions[1:-1]
assert (len(predictions) == len(token_indices[i]))
all_predictions.extend(predictions)
all_y_true.extend(label_indices[i])
label_predict = [vocab.labels[i] for i in all_predictions]
label_true = [vocab.labels[i] for i in all_y_true]
label_predict = utils_nlp.bioes_to_bio(label_predict)
label_true = utils_nlp.bioes_to_bio(label_true)
new_pre = []
new_true = []
for i in range(len(label_predict)):
if label_true[i]!='O' or label_predict[i]!='O':
new_pre.append(utils_nlp.remove_bio_from_label_name(label_predict[i]))
new_true.append(label_true[i] if label_true[i]=='O' else label_true[i][2:])
labels = [label if label=='O' else label[2:] for label in vocab.labels]
labels = list(set(labels))
report = classification_report(new_true,new_pre)
print('matrix')
matrix = confusion_matrix(new_true,new_pre,labels)
file =codecs.open(datatype+'_evaluate.txt','w','utf-8')
file.writelines(' '.join(labels)+'\n\r')
for i,row in enumerate(matrix):
file.writelines(' '.join([str(i) for i in row])+'\n\r')
file.close()
print(matrix)
print(report)
return report
def decision_tree(dir_models, ticket, x, x_test, y, y_test):
print('getting model...decision tree')
clf = DecisionTreeClassifier()
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(clf,
dir_models + ticket + '_decission_tree_' + str(id) + '.pkl')
return clf.score(x_test, y_test)
def metrics(y_true, y_pred):
y_final = []
for i in range(y_pred.shape[0]):
if y_pred[i][0] > y_pred[i][1]:
y_final.append(int(0))
else:
y_final.append(int(1))
print(y_final)
classify_report = classification.classification_report(y_true, y_final)
print('classify_report : \n', classify_report)
return 0
def voting_random_forrest(dir_models, ticket, x, x_test, y, y_test):
print('getting model...voting RandomForest')
estimators = [(str(idd), RandomForestClassifier()) for idd in range(100)]
clf = VotingClassifier(estimators=estimators)
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(
clf, dir_models + ticket + '_voting_rand_forest_' + str(id) + '.pkl')
return clf.score(x_test, y_test)
def voting_decision_tree(dir_models, ticket, x, x_test, y, y_test):
print('getting model...Voting decision tree')
estimators = [(str(idd), DecisionTreeClassifier()) for idd in range(100)]
clf = VotingClassifier(estimators=estimators, voting='soft')
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(clf,
dir_models + ticket + '_voting_dectree_' + str(id) + '.pkl')
return accuracy_score(y_test, predicted)
def bernoulli_classifier(dir_models, ticket, x, x_test, y, y_test):
print('getting model...BernoulliNB')
clf = BernoulliNB(binarize=True)
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(clf, dir_models + ticket + '_bernoulli_' + str(id) + '.pkl')
return clf.score(x_test, y_test)
def gradient_classifier(dir_models, ticket, x, x_test, y, y_test):
print('getting model...GBC')
clf = GradientBoostingClassifier(n_estimators=1000)
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(clf, dir_models + ticket + '_gbc_' + str(id) + '.pkl')
return clf.score(x_test, y_test)
def adaboost_classifier(dir_models, ticket, x, x_test, y, y_test):
print('getting model...Ada')
clf = AdaBoostClassifier()
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(clf, dir_models + ticket + '_adaboost_' + str(id) + '.pkl')
return clf.score(x_test, y_test)
def mlp_classifier(dir_models, ticket, x, x_test, y, y_test):
print('getting model...MLP')
clf = MLPClassifier(early_stopping=True)
print('training...')
clf.fit(x, y)
print('predicting...')
predicted = clf.predict(x_test)
print(classification_report(y_test, predicted))
id = len(os.listdir(dir_models))
joblib.dump(clf, dir_models + ticket + '_mlp_' + str(id) + '.pkl')
return clf.score(x_test, y_test)
def cv_test_module(self, module, module_kwargs, fit_kwargs):
logging.info('Cross-validate testing module %s...' % module.__name__)
xs, ys = self.dg.get_all()
module_object = module(**module_kwargs)
predict = cross_val_predict(
module_object,
xs, ys,
cv=10,
n_jobs=-1,
)
print(classification_report(ys, predict))
logging.info('Cross-validate testing module %s finished' % module.__name__)
def main(args):
## tr_data training set
parser = argparse.ArgumentParser()
parser.add_argument(
"base_dir",
nargs="?",
default=os.path.join(os.getcwd(), "mseg_workspace"),
help="this is the working directory, all sub dirs live under it",
)
parser.add_argument(
"pm_dir",
nargs="?",
default="pm_default",
help="this is the directory in which to store the prosodic model file",
)
parser.add_argument(
"training_file",
nargs="?",
default=TRAIN_FILE_DEFAULT,
help="name of CSV file that contains correctly annotated training examples",
)
parser.add_argument(
"test_file",
nargs="?",
default=TEST_FILE_DEFAULT,
help="name of CSV file that contains mysterious cases that must be tested",
)
parser.add_argument(
"-lr",
"--logistic_regression",
default=False,
action="store_true",
help="use logistic regression classifier (default is RBF-SVM)",
)
args = parser.parse_args()
base_dir = args.base_dir
pm_dir = args.pm_dir
tr_file = args.training_file
test_fname = args.test_file
use_lr = args.logistic_regression
# if(len(args)==3):
# base_dir = args[0]
# pm_dir = args[1]
# tr_file = args[2]
# test_fname = args[3]
# else:
# base_dir = DIR
# pm_dir = "pm_default"
# tr_file = TRAIN_FILE_DEFAULT
# test_fname = TEST_FILE_DEFAULT
# # do_search = False
# # use_pilot = False
n_samples = -1
cache = 800
# pm_dir= raw_input("enter PM name: [%s]" % pm_dir) or pm_dir
# tr_file = raw_input("enter PM training file name: [%s]" % tr_file) or tr_file
tr_data = read_file(os.path.join(base_dir, tr_file), ",", skip_header=True)
# test_fname = raw_input("enter file to test on: [%s]" % test_fname) or test_fname
# use_lr = bool(raw_input("use logistic regression [False]?")) or False
if not use_lr:
n_samples = 6000
out_fname = test_fname + "-probabilities.dat"
report_fname = test_fname + "-report.txt"
else:
out_fname = test_fname + "-probabilities.dat"
report_fname = test_fname + "-report-LR.txt"
out_file = os.path.join(base_dir, pm_dir, out_fname)
report_fname = os.path.join(base_dir, pm_dir, report_fname)
# clear extant predictions file
if os.path.exists(out_file):
os.remove(out_file)
print "removed", out_file
print base_dir + "/" + tr_file + " -SVM-> ", out_file
test_data = read_file(os.path.join(base_dir, test_fname), ",", skip_header=True)
# sel = [12,13,14,15,21,22,23,24]
sel = range(7, 30)
# sel = [8,21,29, 24,25,27]
(_, _, tr_samples, tr_classes) = dissect(tr_data, sel)
(_, te_words, te_samples, te_classes) = dissect(test_data, sel)
if n_samples > 0:
tr_samples, _, tr_classes, _ = train_test_split(
tr_samples, tr_classes, train_size=n_samples, stratify=tr_classes
)
p = sum(c == 1.0 for c in tr_classes) # count the positive instances
n = len(tr_classes) - p # derive the negative instances
print "n=", n, " p=", p
wgt = float(n) / float(p) # cast and divide
print "wgt=", wgt
# classWeight = { 1: wgt }
# tr_samples, te_samples, tr_classes, te_classes = train_test_split(samples, classes, test_size=0.20, random_state=0, stratify=classes)
scaler = preprocessing.StandardScaler().fit(np.array(tr_samples))
tr_samples = scaler.transform(tr_samples)
clf = None
best_params = None
# override the defaults with the results of a grid search if desired (takes a while)
# pickled = False
pkl_dir = os.path.join(base_dir, pm_dir, "pkl")
pickled_model = os.path.join(pkl_dir, "svm_classifier.pkl")
if os.path.exists(pickled_model) and not overwrite_pkl:
clf = joblib.load(pickled_model)
clf.set_params(verbose=True)
print "loaded pickled model...", pickled_model
else:
if not os.path.exists(pkl_dir): # output dir doesn't exist so make it
os.makedirs(pkl_dir)
print "made dir for pickled model:", pkl_dir
cmin, cmax, cstep = -5, 17, 2
cr = range(cmin, cmax, cstep)
print (cr)
# c_range = [ pow(2, y) for y in cr]
# c_range =(0.005, 0.5, 5, 50, 500, 5000, 50000)
c_range = (0.5, 50, 5000)
print ("c_range", c_range)
gmin, gmax, gstep = -15, 5, 2
gr = range(gmin, gmax, gstep)
print (gr)
# gamma_range = [ pow(2, y) for y in gr ]
# gamma_range = (0.00005, 0.0005, 0.005, 0.05, 0.5, 5.0, 50, 500)
gamma_range = (0.0005, 0.05, 5.0, 500)
print ("gamma_range", gamma_range)
c_dist = scipy.stats.expon(scale=100)
gamma_dist = scipy.stats.expon(scale=0.01)
if use_lr:
estr = LogisticRegression(class_weight="balanced")
# estr = LogisticRegression()
param_dist = {"C": c_dist}
else:
estr = svm.SVC(kernel="rbf", cache_size=800, probability=True, class_weight="balanced")
# estr = svm.LinearSVC(class_weight='balanced')
param_dist = {"C": c_dist, "gamma": gamma_dist}
# searcher = RandomizedSearchCV(estr, param_distributions=param_dist, n_iter=100, n_jobs=-1, cv=5, verbose=True ) #, scoring="recall")
searcher = RandomizedSearchCV(
estr, param_distributions=param_dist, n_iter=100, n_jobs=-1, verbose=True, scoring="recall"
)
searcher.fit(tr_samples, tr_classes)
report(searcher.grid_scores_)
clf = searcher.best_estimator_
print "COMPARING CLF PARAMS WITH BEST PARAMS (shd be same)"
print clf.get_params()
print best_params
joblib.dump(clf, pickled_model)
print clf
# print "FITTING"
# clf.set_params(verbose=True)
# clf.fit(tr_samples, tr_classes)
# print clf
# NOW TO TEST AGAINST HELD-OUT/TEST DATA
te_samples = scaler.transform(te_samples)
print "no test cases", len(te_samples)
predictions = -1.0 * clf.predict_log_proba(
te_samples
) # this is a list of pairs of probs in form [ [1-p, p], ... ]
# predictions = -1.0 * clf.decision_function(te_samples)
print predictions
predicted_classes = clf.predict(te_samples)
print (
"TEST: Number of mislabelled points out of a total %d points : %d"
% (len(te_samples), (te_classes != predicted_classes).sum())
)
print (classification_report(te_classes, predicted_classes))
rpt = open(report_fname, "w")
rpt.write(classification_report(te_classes, predicted_classes))
rpt.write("\n")
rpt.close()
print "wrote report file", rpt
pred_file = open(out_file, "w")
pred_file.write("labels 0 1\n") # this emulates an earlier file format for compatibility
for word, prob_tuple, guessed_class in zip(te_words, predictions, predicted_classes):
pred_file.write("%d %f %f %s\n" % (guessed_class, prob_tuple[0], prob_tuple[1], word))
pred_file.close()
print "wrote predictions file:", pred_file
model.add(SimpleRNN(X_train.shape[1], input_dim=X_train.shape[1]))
model.add(Activation('relu'))
model.add(SimpleRNN(20000))
model.add(Activation('relu'))
model.add(Dropout(0.5))
model.add(SimpleRNN(nb_classes))
model.add(Activation('softmax'))
model.compile(loss=loss, optimizer=optim, metrics=['accuracy'])
return model
classifier = KerasClassifier(build_fn=create_model, nb_epoch=nb_epoch, batch_size=batch_size)
history = classifier.fit(X_train, Y_train, batch_size=batch_size, nb_epoch=nb_epoch)
Y_pred = classifier.predict(X_test, batch_size=batch_size)
print(classification_report(y_true=Y_test, y_pred=Y_pred))
plt.figure()
plt.plot(history.history['acc'])
plt.title('Genauigkeit')
plt.ylabel('Genauigkeit')
plt.xlabel('Epoche')
plt.legend(['Training', 'Test'], loc='upper left')
plt.savefig("data/acc.png")
# summarize history for loss
plt.figure()
plt.plot(history.history['loss'])
plt.title('Loss Werte')
plt.ylabel('Loss')
plt.xlabel('Epoche')
# class_weight={0: 3, 1: 1, 2: 1, 3: 1, 4: 1, 5: 2, 6: 1})
# model = LogisticRegression(C=subsample, verbose=0, penalty='l1', max_iter=100)
# model = KNeighborsClassifier(n_neighbors=learning_rate)
# model = xgb.XGBRegressor(max_depth=depth, n_estimators=n_estimators, learning_rate=learning_rate,
# nthread=1, subsample=subsample, silent=True, colsample_bytree=0.8)
# model = LinearSVC(C=0.9, penalty='l2', dual=False, verbose=1, max_iter=100000)
model.fit(trtrfe, trtrtrue)
# mean accuracy on the given test data and labels
predicted = [math.floor(x) for x in model.predict(trtefe)]
score = model.score(trtefe, trtetrue)
print("score =", score)
print(classification_report(trtetrue, predicted))
print(confusion_matrix(trtetrue, predicted))
if score > best_score or True:
best_model = model
best_score = score
best_model.fit(train_features, train_true)
predicted = [math.floor(x) for x in best_model.predict(test_features)]
fname = "data/net_result/sol_" + str(score) + "_" + str(time.time()) + ".csv"
write_sol(predicted, fname)
print("this model", depth, "\t", subsample, "\t", score)
print("best model", best_score)
best_model.fit(trtefe, trtetrue)
predicted = [math.floor(x) for x in best_model.predict(test_features)]