def TestModel(new_train,
new_test,
texts_train_path,
texts_test_path,
train_pos,
test_pos,
new_train_ngrams,
new_test_ngrams,
nFeaturesList,
subsample=False,
removeCenter=True,
BoW=True,
charNgrams=False,
POS=False,
features=False,
POSgrams=False,
tfidf=False,
binary=False,
statistics=False):
names = []
train, test, train_labels, test_labels, feature_names = FeaturesReader.readFeatures(
new_train, new_test)
labels_train, texts_train, nominates_train = Eval.readDataSet(
texts_train_path, 0)
labels_test, texts_test, nominates_test = Eval.readDataSet(
texts_test_path, 0)
"""
train_pos_3gram_file = open(train_pos_3gram, 'r')
train_pos_3gram_file_list = train_pos_3gram_file.readlines()
pos_3gram_names = train_pos_3gram_file_list[0].split(",")
train_pos_3gram_file_list.pop(0)
test_pos_3gram_file = open(test_pos_3gram,'r')
test_pos_3gram_file_list = test_pos_3gram_file.readlines()
test_pos_3gram_file_list.pop(0)
"""
if features:
print("Reading feature files")
train_matrix = np.matrix(train)
test_matrix = np.matrix(test)
names = names + feature_names
if POS:
print("Reading POS files")
train_pos_file = open(train_pos, 'r')
train_pos_file_list = train_pos_file.readlines()
pos_names = train_pos_file_list[0].split(",")
train_pos_file_list.pop(0)
test_pos_file = open(test_pos, 'r')
test_pos_file_list = test_pos_file.readlines()
test_pos_file_list.pop(0)
pos_train_rows = []
for line in train_pos_file_list:
line = line.replace("\n", '')
pos_train_rows.append([int(r) for r in line.split(',')])
train_pos_file.close()
pos_test_rows = []
for line in test_pos_file_list:
line = line.replace("\n", '')
pos_test_rows.append([int(r) for r in line.split(',')])
test_pos_file.close()
if features:
train_matrix = np.concatenate(
[train_matrix, np.matrix(pos_train_rows)], axis=1)
test_matrix = np.concatenate(
[test_matrix, np.matrix(pos_test_rows)], axis=1)
else:
train_matrix = np.matrix(pos_train_rows)
test_matrix = np.matrix(pos_test_rows)
names = names + pos_names
if charNgrams:
print("Reading ngram files")
train_ngram_file = open(new_train_ngrams, 'r')
train_ngram_file_list = train_ngram_file.readlines()
ngram_names = train_ngram_file_list[0].split(",")
train_ngram_file_list.pop(0)
test_ngram_file = open(new_test_ngrams, 'r')
test_ngram_file_list = test_ngram_file.readlines()
test_ngram_file_list.pop(0)
lines = train_ngram_file_list
ngram_train_rows = []
for line in lines:
line = line.replace("\n", '')
ngram_train_rows.append([int(r) for r in line.split(',')])
train_ngram_file.close()
lines = test_ngram_file_list
ngram_test_rows = []
for line in lines:
line = line.replace("\n", '')
ngram_test_rows.append([int(r) for r in line.split(',')])
test_ngram_file.close()
if (features or POS):
train_matrix = np.concatenate(
[train_matrix, np.matrix(ngram_train_rows)], axis=1)
test_matrix = np.concatenate(
[test_matrix, np.matrix(ngram_test_rows)], axis=1)
else:
train_matrix = np.matrix(ngram_train_rows)
test_matrix = np.matrix(ngram_test_rows)
names = names + ngram_names
if POSgrams:
print("Reading POS n gram files")
train_pos_gram_file = open(train_pos_gram, 'r')
train_pos_gram_file_list = train_pos_gram_file.readlines()
pos_gram_names = train_pos_gram_file_list[0].split(",")
train_pos_gram_file_list.pop(0)
test_pos_gram_file = open(test_pos_gram, 'r')
test_pos_gram_file_list = test_pos_gram_file.readlines()
test_pos_gram_file_list.pop(0)
pos_gram_train_rows = []
for line in train_pos_gram_file_list:
line = line.replace("\n", '')
pos_gram_train_rows.append([int(r) for r in line.split(',')])
train_pos_gram_file.close()
pos_gram_test_rows = []
for line in test_pos_gram_file_list:
line = line.replace("\n", '')
pos_gram_test_rows.append([int(r) for r in line.split(',')])
test_pos_gram_file.close()
if (features or POS or charNgrams):
train_matrix = np.concatenate(
[train_matrix, np.matrix(pos_gram_train_rows)], axis=1)
test_matrix = np.concatenate(
[test_matrix, np.matrix(pos_gram_test_rows)], axis=1)
else:
train_matrix = np.matrix(pos_gram_train_rows)
test_matrix = np.matrix(pos_gram_test_rows)
names = names + pos_gram_names
"""
pos_3gram_train_rows = []
for line in train_pos_3gram_file_list:
line = line.replace("\n",'')
pos_3gram_train_rows.append([int(r) for r in line.split(',')])
train_pos_3gram_file.close()
pos_3gram_test_rows = []
for line in test_pos_3gram_file_list:
line = line.replace("\n",'')
pos_3gram_test_rows.append([int(r) for r in line.split(',')])
test_pos_3gram_file.close()
train_matrix = np.concatenate([train_matrix, np.matrix(pos_gram_train_rows)], axis = 1)
test_matrix = np.concatenate([test_matrix, np.matrix(pos_gram_test_rows)], axis = 1)
names = names + pos_3gram_names
"""
if BoW:
print("Generating Bag of Words")
#vocab_f = open(vocab_path, 'r')
#vocab = vocab_f.readline().split(',')
vectorizer = CountVectorizer(token_pattern='[a-zA-Z]+',
stop_words='english')
bow_train = vectorizer.fit_transform(texts_train)
bow_test = vectorizer.transform(texts_test)
if (features or POS or charNgrams or POSgrams):
train_matrix = hstack((bow_train, train_matrix))
test_matrix = hstack((bow_test, test_matrix))
else:
train_matrix = bow_train
test_matrix = bow_test
bow_names = vectorizer.get_feature_names()
names = bow_names + names
if tfidf:
print("Generating TFIDF")
#vocab_f = open(vocab_path, 'r')
#vocab = vocab_f.readline().split(',')
vectorizer = TfidfVectorizer()
bow_train = vectorizer.fit_transform(texts_train)
bow_test = vectorizer.transform(texts_test)
if (features or POS or charNgrams or POSgrams or BoW):
train_matrix = hstack((bow_train, train_matrix))
test_matrix = hstack((bow_test, test_matrix))
else:
train_matrix = bow_train
test_matrix = bow_test
bow_names = vectorizer.get_feature_names()
names = bow_names + names
if not BoW or not tfidf:
train_matrix = sparse.csc_matrix(train_matrix)
test_matrix = sparse.csc_matrix(test_matrix)
if binary:
transformer = Binarizer().fit(train_matrix)
train_matrix = transformer.transform(train_matrix)
transformer = Binarizer().fit(test_matrix)
test_matrix = transformer.transform(test_matrix)
if removeCenter:
extreme_indexes = []
for i in range(0, len(texts_train)):
if (nominates_train[i] > 0.2 or nominates_train[i] < -0.2):
extreme_indexes.append(i)
train_matrix = train_matrix.tocsr()[extreme_indexes, :]
labels_train = [labels_train[i] for i in extreme_indexes]
pos_train = []
neg_train = []
for i in range(0, len(labels_train)):
if labels_train[i] == -1.0:
neg_train.append(i)
else:
pos_train.append(i)
pos_matrix = train_matrix.tocsr()[pos_train, :]
neg_matrix = train_matrix.tocsr()[neg_train, :]
diff = [
abs(x - y) for x, y in zip(
pos_matrix.mean(axis=0).tolist()[0],
neg_matrix.mean(axis=0).tolist()[0])
]
indexes = []
indexes_sorted = [
i[0] for i in sorted(enumerate(diff), key=lambda x: x[1])
]
names_sorted = [names[i] for i in indexes_sorted]
ac_nb_list = []
ac_log_list = []
train_matrix_original = train_matrix
test_matrix_original = test_matrix
for nFeatures in nFeaturesList:
indexes = indexes_sorted[len(indexes_sorted) -
nFeatures:len(indexes_sorted)]
names = names_sorted[len(indexes_sorted) -
nFeatures:len(indexes_sorted)]
train_matrix = train_matrix_original.tocsr()[:, indexes]
test_matrix = test_matrix_original.tocsr()[:, indexes]
print("Training the Naive Bayes classifier")
clf = MultinomialNB()
clf.fit(train_matrix, labels_train)
pred = clf.predict(test_matrix)
print("Naive Bayes")
print("Accuracy: " + str(Eval.Accuracy(labels_test, pred.tolist())))
print("Precision: " + str(Eval.Precision(labels_test, pred.tolist())))
print("Recall: " + str(+Eval.Recall(labels_test, pred.tolist())))
ac_nb = Eval.Accuracy(labels_test, pred.tolist())
ac_nb_list.append(float(ac_nb))
if statistics:
Eval.histogram(nominates_test, labels_test, pred.tolist(), 10,
'Naive Bayes', 'blue')
a = clf.feature_log_prob_[0] - clf.feature_log_prob_[1]
b = [
x * y for x, y in zip(a,
train_matrix.mean(axis=0).tolist()[0])
]
coefs_with_fns = sorted(zip(b, names))
top = zip(coefs_with_fns[:20], coefs_with_fns[:-(20 + 1):-1])
for (coef_1, fn_1), (coef_2, fn_2) in top:
print("\t%.4f\t%-15s\t\t%.4f\t%-15s" %
(coef_2, fn_2, coef_1, fn_1))
clf = LogisticRegression(solver='saga', max_iter=2000)
clf.fit(train_matrix, labels_train)
pred = clf.predict(test_matrix)
print("Logistic Regression")
print("Accuracy: " + str(Eval.Accuracy(labels_test, pred.tolist())))
print("Precision: " + str(Eval.Precision(labels_test, pred.tolist())))
print("Recall: " + str(Eval.Recall(labels_test, pred.tolist())))
ac_log = Eval.Accuracy(labels_test, pred.tolist())
ac_log_list.append(float(ac_log))
if statistics:
Eval.histogram(nominates_test, labels_test, pred.tolist(), 10,
'Logistic Regression', 'orange')
plt.legend(bbox_to_anchor=(0., 1.02, 1., .102),
loc=3,
ncol=2,
mode="expand",
borderaxespad=0.)
b = [
x * y for x, y in zip(clf.coef_[0],
train_matrix.mean(axis=0).tolist()[0])
]
coefs_with_fns = sorted(zip(b, names))
top = zip(coefs_with_fns[:20], coefs_with_fns[:-(20 + 1):-1])
for (coef_1, fn_1), (coef_2, fn_2) in top:
print("\t%.4f\t%-15s\t\t%.4f\t%-15s" %
(coef_1, fn_1, coef_2, fn_2))
return ac_nb_list, ac_log_list
def TestModel(new_train, new_test, texts_train_path, texts_test_path, train_pos, test_pos, new_train_ngrams, new_test_ngrams, train_lda, test_lda, thresholdPos = 0.2, thresholdNeg = -0.2, thresholdPosTest = 0.2, thresholdNegTest = -0.2, subsample=False, removeCenter=True, BoW = True, charNgrams = False, POS = False, features = False, POSgrams = False, tfidf = False, binary = False, lda = False, addToTrain = None):
names = []
labels_train, texts_train, nominates_train = Eval.readDataSet(texts_train_path, 0)
labels_test, texts_test, nominates_test = Eval.readDataSet(texts_test_path, 0)
if addToTrain:
for i in addToTrain:
texts_train_path2 = "C:/Users/Eduardo/Desktop/2 cuatri IIT/TFM/Datasets/hein-daily/hein-daily/longTexts/speeches_"+str(i)+"_dwnominate_nonames.txt"
labels_train2, texts_train2, nominates_train2 = Eval.readDataSet(texts_train_path2, 0)
labels_train = labels_train + labels_train2
texts_train = texts_train + texts_train2
nominates_train = nominates_train + nominates_train2
"""
train_pos_3gram_file = open(train_pos_3gram, 'r')
train_pos_3gram_file_list = train_pos_3gram_file.readlines()
pos_3gram_names = train_pos_3gram_file_list[0].split(",")
train_pos_3gram_file_list.pop(0)
test_pos_3gram_file = open(test_pos_3gram,'r')
test_pos_3gram_file_list = test_pos_3gram_file.readlines()
test_pos_3gram_file_list.pop(0)
"""
if features:
print("Reading feature files")
train, test, train_labels, test_labels, feature_names = FeaturesReader.readFeatures(new_train, new_test)
train_matrix = np.matrix(train)
test_matrix = np.matrix(test)
names = names + feature_names
if POS:
print("Reading POS files")
train_pos_file = open(train_pos, 'r')
train_pos_file_list = train_pos_file.readlines()
pos_names = train_pos_file_list[0].split(",")
train_pos_file_list.pop(0)
test_pos_file = open(test_pos,'r')
test_pos_file_list = test_pos_file.readlines()
test_pos_file_list.pop(0)
pos_train_rows = []
for line in train_pos_file_list:
line = line.replace("\n",'')
pos_train_rows.append([int(r) for r in line.split(',')])
train_pos_file.close()
pos_test_rows = []
for line in test_pos_file_list:
line = line.replace("\n",'')
pos_test_rows.append([int(r) for r in line.split(',')])
test_pos_file.close()
if features:
train_matrix = np.concatenate([train_matrix, np.matrix(pos_train_rows)], axis = 1)
test_matrix = np.concatenate([test_matrix, np.matrix(pos_test_rows)], axis = 1)
else:
train_matrix = np.matrix(pos_train_rows)
test_matrix = np.matrix(pos_test_rows)
names = names + pos_names
if charNgrams:
print("Reading ngram files")
train_ngram_file = open(new_train_ngrams, 'r')
train_ngram_file_list = train_ngram_file.readlines()
ngram_names = train_ngram_file_list[0].split(",")
train_ngram_file_list.pop(0)
test_ngram_file = open(new_test_ngrams, 'r')
test_ngram_file_list = test_ngram_file.readlines()
test_ngram_file_list.pop(0)
lines = train_ngram_file_list
ngram_train_rows = []
for line in lines:
line = line.replace("\n",'')
ngram_train_rows.append([int(r) for r in line.split(',')])
train_ngram_file.close()
lines = test_ngram_file_list
ngram_test_rows = []
for line in lines:
line = line.replace("\n",'')
ngram_test_rows.append([int(r) for r in line.split(',')])
test_ngram_file.close()
if (features or POS):
train_matrix = np.concatenate([train_matrix, np.matrix(ngram_train_rows)], axis = 1)
test_matrix = np.concatenate([test_matrix, np.matrix(ngram_test_rows)], axis = 1)
else:
train_matrix = np.matrix(ngram_train_rows)
test_matrix = np.matrix(ngram_test_rows)
names = names + ngram_names
if POSgrams:
print("Reading POS n gram files")
train_pos_gram_file = open(train_pos_gram, 'r')
train_pos_gram_file_list = train_pos_gram_file.readlines()
pos_gram_names = train_pos_gram_file_list[0].split(",")
train_pos_gram_file_list.pop(0)
test_pos_gram_file = open(test_pos_gram,'r')
test_pos_gram_file_list = test_pos_gram_file.readlines()
test_pos_gram_file_list.pop(0)
pos_gram_train_rows = []
for line in train_pos_gram_file_list:
line = line.replace("\n",'')
pos_gram_train_rows.append([int(r) for r in line.split(',')])
train_pos_gram_file.close()
pos_gram_test_rows = []
for line in test_pos_gram_file_list:
line = line.replace("\n",'')
pos_gram_test_rows.append([int(r) for r in line.split(',')])
test_pos_gram_file.close()
if (features or POS or charNgrams):
train_matrix = np.concatenate([train_matrix, np.matrix(pos_gram_train_rows)], axis = 1)
test_matrix = np.concatenate([test_matrix, np.matrix(pos_gram_test_rows)], axis = 1)
else:
train_matrix = np.matrix(pos_gram_train_rows)
test_matrix = np.matrix(pos_gram_test_rows)
names = names + pos_gram_names
"""
pos_3gram_train_rows = []
for line in train_pos_3gram_file_list:
line = line.replace("\n",'')
pos_3gram_train_rows.append([int(r) for r in line.split(',')])
train_pos_3gram_file.close()
pos_3gram_test_rows = []
for line in test_pos_3gram_file_list:
line = line.replace("\n",'')
pos_3gram_test_rows.append([int(r) for r in line.split(',')])
test_pos_3gram_file.close()
train_matrix = np.concatenate([train_matrix, np.matrix(pos_gram_train_rows)], axis = 1)
test_matrix = np.concatenate([test_matrix, np.matrix(pos_gram_test_rows)], axis = 1)
names = names + pos_3gram_names
"""
if lda:
print("Reading lda files")
train_lda_file = open(train_lda, 'r')
train_lda_file_list = train_lda_file.readlines()
lda_names = train_lda_file_list[0].split(",")
train_lda_file_list.pop(0)
test_lda_file = open(test_lda,'r')
test_lda_file_list = test_lda_file.readlines()
test_lda_file_list.pop(0)
lda_train_rows = []
for line in train_lda_file_list:
line = line.replace("\n",'')
lda_train_rows.append([float(r) for r in line.split(',')])
train_lda_file.close()
lda_test_rows = []
for line in test_lda_file_list:
line = line.replace("\n",'')
lda_test_rows.append([float(r) for r in line.split(',')])
test_lda_file.close()
if (features or POS or charNgrams or POSgrams):
train_matrix = np.concatenate([train_matrix, np.matrix(lda_train_rows)], axis = 1)
test_matrix = np.concatenate([test_matrix, np.matrix(lda_test_rows)], axis = 1)
else:
train_matrix = np.matrix(lda_train_rows)
test_matrix = np.matrix(lda_test_rows)
names = names + lda_names
if removeCenter:
extreme_indexes = []
for i in range(0,len(texts_train)):
if (nominates_train[i] > thresholdPos or nominates_train[i]<thresholdNeg):
extreme_indexes.append(i)
if (features or POS or charNgrams or POSgrams or lda):
train_matrix = train_matrix[extreme_indexes,:]
labels_train = [labels_train[i] for i in extreme_indexes]
texts_train = [texts_train[i] for i in extreme_indexes]
"""
extreme_indexes = []
for i in range(0,len(texts_test)):
if (nominates_test[i] > thresholdPosTest or nominates_test[i]<thresholdNegTest):
extreme_indexes.append(i)
if (features or POS or charNgrams or POSgrams or lda):
test_matrix = test_matrix[extreme_indexes,:]
texts_test = [texts_test[i] for i in extreme_indexes]
labels_test = [labels_test[i] for i in extreme_indexes]
nominates_test = [nominates_test[i] for i in extreme_indexes]
"""
if BoW:
print("Generating Bag of Words")
#vocab_f = open(vocab_path, 'r')
#vocab = vocab_f.readline().split(',')
vectorizer = CountVectorizer(token_pattern = '[a-zA-Z]+', stop_words='english')
bow_train = vectorizer.fit_transform(texts_train)
bow_test = vectorizer.transform(texts_test)
if (features or POS or charNgrams or POSgrams or lda):
train_matrix = hstack((bow_train,train_matrix))
test_matrix = hstack((bow_test,test_matrix))
else:
train_matrix = bow_train
test_matrix = bow_test
bow_names = vectorizer.get_feature_names()
names = bow_names + names
if tfidf:
print("Generating TFIDF")
#vocab_f = open(vocab_path, 'r')
#vocab = vocab_f.readline().split(',')
vectorizer = TfidfVectorizer(token_pattern = '[a-zA-Z]+', stop_words='english')
bow_train = vectorizer.fit_transform(texts_train)
bow_test = vectorizer.transform(texts_test)
if (features or POS or charNgrams or POSgrams or BoW):
train_matrix = hstack((bow_train,train_matrix))
test_matrix = hstack((bow_test,test_matrix))
else:
train_matrix = bow_train
test_matrix = bow_test
bow_names = vectorizer.get_feature_names()
names = bow_names + names
if not BoW or not tfidf:
train_matrix = sparse.csc_matrix(train_matrix)
test_matrix = sparse.csc_matrix(test_matrix)
if binary:
transformer = Binarizer().fit(train_matrix)
train_matrix = transformer.transform(train_matrix)
transformer = Binarizer().fit(test_matrix)
test_matrix = transformer.transform(test_matrix)
print("Training the Naive Bayes classifier")
clf = MultinomialNB()
clf.fit(train_matrix, labels_train)
pred = clf.predict(test_matrix)
print("Naive Bayes")
print("Accuracy: "+str(Eval.Accuracy(labels_test, pred.tolist())))
print("Precision: "+str(Eval.Precision(labels_test, pred.tolist())))
print("Recall: "+str(+Eval.Recall(labels_test, pred.tolist())))
cm = confusion_matrix(labels_test, pred)
print(cm)
#print("Speaker accuracy: " + str(Eval.SpeakerAccuracy(112, pred)))
nb_ac = Eval.Accuracy(labels_test, pred.tolist())
Eval.histogram(nominates_test,labels_test,pred.tolist(),10, 'Naive Bayes', 'c')
a = clf.feature_log_prob_[0] - clf.feature_log_prob_[1]
b = [x*y for x,y in zip(a, train_matrix.mean(axis=0).tolist()[0])]
coefs_with_fns = sorted(zip(b, names))
top = zip(coefs_with_fns[:20], coefs_with_fns[:-(20 + 1):-1])
for (coef_1, fn_1), (coef_2, fn_2) in top:
print("\t%.4f\t%-15s\t\t%.4f\t%-15s" % (coef_2, fn_2, coef_1, fn_1))
clf = LogisticRegression(solver='lbfgs')
clf.fit(train_matrix, labels_train)
pred = clf.predict(test_matrix)
print("Logistic Regression")
print("Accuracy: "+str(Eval.Accuracy(labels_test, pred.tolist())))
print("Precision: "+str(Eval.Precision(labels_test, pred.tolist())))
print("Recall: "+str(Eval.Recall(labels_test, pred.tolist())))
cm = confusion_matrix(labels_test, pred)
print(cm)
#print("Speaker accuracy: " + str(Eval.SpeakerAccuracy(112, pred)))
Eval.histogram(nominates_test,labels_test,pred.tolist(),10, 'Logistic Regression', 'b')
plt.legend(loc=1, ncol=1)
b = [x*y for x,y in zip(clf.coef_[0], train_matrix.mean(axis=0).tolist()[0])]
coefs_with_fns = sorted(zip(b, names))
top = zip(coefs_with_fns[:20], coefs_with_fns[:-(20 + 1):-1])
for (coef_1, fn_1), (coef_2, fn_2) in top:
print("\t%.4f\t%-15s\t\t%.4f\t%-15s" % (coef_1, fn_1, coef_2, fn_2))
log_ac = Eval.Accuracy(labels_test, pred.tolist())
