def main_customFields(typeOp, balanced):
if balanced == 'balanced':
train_data = pd.read_csv(
DATASET_PATH + "/tweets_balanced_train.csv", sep=",", dtype=str)[[
'screen_name', 'friends_count', 'tweets_count', 'linkedin',
'snapchat', 'instagram', 'facebook', 'followers_count',
'favourites_count', 'qtyMentions', 'qtyHashtags', 'qtyUrls',
'qtyEmojis', 'qtyUppercase', 'profile_pic_gender', 'age'
]]
test_data = pd.read_csv(DATASET_PATH + "/tweets_balanced_test.csv",
sep=",",
dtype=str)[[
'screen_name', 'friends_count',
'tweets_count', 'linkedin', 'snapchat',
'instagram', 'facebook', 'followers_count',
'favourites_count', 'qtyMentions',
'qtyHashtags', 'qtyUrls', 'qtyEmojis',
'qtyUppercase', 'profile_pic_gender', 'age'
]]
else:
train_data = pd.read_csv(
DATASET_PATH + "/" + typeOp + "_tweets_train.csv",
sep=",",
dtype=str)[[
'screen_name', 'friends_count', 'tweets_count', 'linkedin',
'snapchat', 'instagram', 'facebook', 'followers_count',
'favourites_count', 'qtyMentions', 'qtyHashtags', 'qtyUrls',
'qtyEmojis', 'qtyUppercase', 'profile_pic_gender', 'age'
]]
test_data = pd.read_csv(
DATASET_PATH + "/" + typeOp + "_tweets_test.csv",
sep=",",
dtype=str)[[
'screen_name', 'friends_count', 'tweets_count', 'linkedin',
'snapchat', 'instagram', 'facebook', 'followers_count',
'favourites_count', 'qtyMentions', 'qtyHashtags', 'qtyUrls',
'qtyEmojis', 'qtyUppercase', 'profile_pic_gender', 'age'
]]
# Show the number of observations for the test and training dataframes
print 'Number of observations in the training data:', len(train_data)
print 'Number of observations in the test data:', len(test_data)
frames = [train_data, test_data]
df_complete = pd.concat(frames)
print 'Number of observations in the whole dataset:', len(df_complete)
features = train_data.columns[1:(len(train_data.columns) - 1)]
train_data_features = train_data[features]
test_data_features = test_data[features]
import ml_utils as ml_utils
# convert age ranges into integers
y = ml_utils.convertToInt(train_data['age'], typeOp)
########################################
#******* HYPERPARAMETER TUNING *********
########################################
import ml_utils as ml_utils
#PARAMETERS TUNING
#print ml_utils.SVM_param_selection(train_data_features, train_data["age"]) #RESULT: {'kernel': 'rbf', 'C': 8, 'gamma': 0.01}
#print ml_utils.RandomForest_param_selection(train_data_features, train_data["age"])#RESULT:{'n_estimators': 140, 'max_depth': 20, 'min_samples_leaf': 2}
#print ml_utils.SGD_param_selection(train_data_features, train_data["age"]) #RESULT:{'penalty': 'l2', 'alpha': 0.001, 'n_iter': 50, 'loss': 'log'}
########################################
#******* MODEL TRAINING *********
########################################
print "Training the classifiers ..."
forest = RandomForestClassifier(n_estimators=140,
max_depth=20,
min_samples_leaf=2)
bayes = MultinomialNB()
svm = SVC(kernel='rbf', C=8, gamma=0.01)
sgd = SGDClassifier(loss='log',
penalty='l2',
random_state=42,
alpha=0.001,
n_iter=50)
# Train the Classifier to take the training features and learn how they relate to the age
forest.fit(train_data_features, y)
bayes.fit(train_data_features, y)
svm = svm.fit(train_data_features, y)
sgd = sgd.fit(train_data_features, y)
# Apply the Classifier we trained to the test data
# Create actual english names for the ages for each predicted age range
resultForest = ml_utils.convertToCategory(
forest.predict(test_data_features), typeOp)
resultBayes = ml_utils.convertToCategory(bayes.predict(test_data_features),
typeOp)
resultSVM = ml_utils.convertToCategory(svm.predict(test_data_features),
typeOp)
resultSGD = ml_utils.convertToCategory(sgd.predict(test_data_features),
typeOp)
# View the predicted probabilities of the first 10 observations
forest.predict_proba(test_data_features)[0:10]
outdir = time.strftime("%d-%m-%Y")
if not os.path.exists(outdir):
os.mkdir(outdir)
if not os.path.exists(outdir + "/" + typeOp):
os.mkdir(outdir + "/" + typeOp)
outdir = outdir + "/" + typeOp
output = pd.DataFrame(
data={
"id": test_data["screen_name"],
"realAge": test_data["age"],
"ageRandomForest": resultForest,
"ageNaiveBayes": resultBayes,
"ageSVM": resultSVM,
"ageSGD": resultSGD
})
# Use pandas to write the comma-separated output file
outname = 'tweets_customFields_results.csv'
fullname = os.path.join(outdir, outname)
output.to_csv(fullname, index=False)
# View a list of the features and their importance scores
headers = ["name", "score"]
print "Importance of Features: " #, sorted(list(zip(train_data[features], forest.feature_importances_)), key=lambda x: x[1])
values = sorted(zip(train_data_features, forest.feature_importances_),
key=lambda x: x[1] * -1)
print tabulate(values, headers, tablefmt="plain")
#############################################
# EVALUATE THE MODEL
#############################################
print "Evaluating the model --> Calculating metrics ..."
db_access = MongoDBUtils()
ageRanges = []
if typeOp == 'normal':
ageRanges = db_access.getAgeRanges()
else:
ageRanges = db_access.get3AgeRanges()
target_names = ageRanges
data = df_complete[[
'friends_count', 'tweets_count', 'linkedin', 'snapchat', 'instagram',
'facebook', 'followers_count', 'favourites_count', 'qtyMentions',
'qtyHashtags', 'qtyUrls', 'qtyEmojis', 'qtyUppercase',
'profile_pic_gender'
]]
y_complete = ml_utils.convertToInt(df_complete['age'], typeOp)
#--------------
##BAYES
#--------------
name_prefix = 'customFields_' + typeOp + '_' + balanced
print "Metrics for Naive Bayes:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultBayes,
ageRanges, name_prefix, 'NaiveBayes',
outdir)
print classification_report(test_data['age'].tolist(),
resultBayes,
target_names=target_names)
scores = cross_val_score(bayes,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracyNB = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracyNB
#--------------
##RANDOM FOREST
#--------------
print "Metrics for Random Forest:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultForest,
ageRanges, name_prefix, 'RandomForest',
outdir)
print classification_report(test_data['age'].tolist(),
resultForest,
target_names=target_names)
scores = cross_val_score(forest,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracyRF = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracyRF
#--------------
##SVM
#--------------
print "Metrics for SVM:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultSVM,
ageRanges, name_prefix, 'SVM', outdir)
print classification_report(test_data['age'].tolist(),
resultSVM,
target_names=target_names)
scores = cross_val_score(svm,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracySVM = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracySVM
#--------------
##SGD
#--------------
print "Metrics for SGD:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultSGD,
ageRanges, name_prefix, 'SGD', outdir)
print classification_report(test_data['age'].tolist(),
resultSGD,
target_names=target_names)
scores = cross_val_score(sgd,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracySGD = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracySGD
#--------------
##OUTPUT
#--------------
result = "ACCURACY--> N.Bayes:", accuracyNB, "|RForest:", accuracyRF, "|SVM:", accuracySVM, "|SGD:", accuracySGD
print result
return result # Copy the results to a pandas dataframe
output = pd.DataFrame(
data={
"id": test_data["screen_name"],
"realAge": test_data["age"],
"ageRandomForest": resultForest,
"ageNaiveBayes": resultBayes
})
def main_subscriptionNgrams(typeOp, balanced):
if balanced == 'balanced':
train_data = pd.read_csv(DATASET_PATH +
"/subscriptionLists_balanced_train.csv",
sep=",",
dtype=str)
test_data = pd.read_csv(DATASET_PATH +
"/subscriptionLists_balanced_test.csv",
sep=",",
dtype=str)
else:
train_data = pd.read_csv(DATASET_PATH + "/" + typeOp +
"_subscriptionLists_train.csv",
sep=",",
dtype=str)
test_data = pd.read_csv(DATASET_PATH + "/" + typeOp +
"_subscriptionLists_test.csv",
sep=",",
dtype=str)
# Show the number of observations for the test and training dataframes
print 'Number of observations in the training data:', len(train_data)
print 'Number of observations in the test data:', len(test_data)
frames = [train_data, test_data]
df_complete = pd.concat(frames)
print 'Number of observations in the whole dataset:', len(df_complete)
stopwords = getSpanishStopwords()
count_vect = CountVectorizer(stop_words=stopwords,
max_features=5000,
ngram_range=(1, 3),
token_pattern=r'\b\w+\b')
X_train_counts = count_vect.fit_transform(train_data.subscriptionLists)
# fit_transform() fits the model and learns the vocabulary; second, it transforms our training data
# into feature vectors.
##To see occurrences of a specific word:
#print count_vect.vocabulary_.get(u'amigos')
train_data_features = X_train_counts.toarray()
#print len(train_data) #186 users en train
#print train_data_features.shape
#(186, 500) --> It has 212 rows and 500 features (500 most frequent words).
# Take a look at the words in the vocabulary
vocab = count_vect.get_feature_names()
#print vocab
# Sum up the counts of each vocabulary word
dist = np.sum(train_data_features, axis=0)
# For each, print the vocabulary word and the number of times it
# appears in the training set
#for tag, count in zip(vocab, dist):
# print count, tag
########################################
#******* HYPERPARAMETER TUNING *********
########################################
import ml_utils as ml_utils
#PARAMETERS TUNING
#print ml_utils.SVM_param_selection(train_data_features, train_data["age"]) #RESULT:{'kernel': 'rbf', 'C': 10, 'gamma': 0.01}
#print ml_utils.RandomForest_param_selection(train_data_features, train_data["age"])#RESULT: {'n_estimators': 120, 'max_depth': 30, 'min_samples_leaf': 1}
#print ml_utils.SGD_param_selection(train_data_features, train_data["age"]) #RESULT: {'penalty': 'elasticnet', 'alpha': 0.0001, 'n_iter': 40, 'loss': 'log'}
# ********* APLICO MODELOS Y LOS ENTRENO CON LA DATA EN TRAIN*********#
print "Training the models..."
# Initialize Multinomial Naive Bayes
bayes = MultinomialNB()
# Initialize a Random Forest classifier with 100 trees
forest = RandomForestClassifier(n_estimators=120,
max_depth=30,
min_samples_leaf=1)
# Fit the forest to the training set, using the bag of)
svm = SVC(kernel='rbf', C=10, gamma=0.01)
sgd = SGDClassifier(penalty='elasticnet',
alpha=0.0001,
n_iter=40,
loss='log')
# Fit the forest to the training set, using the bag of words as
# features and the age range as the response variable
forest = forest.fit(train_data_features, train_data["age"])
bayes = bayes.fit(train_data_features, train_data["age"])
svm = svm.fit(train_data_features, train_data["age"])
sgd = sgd.fit(train_data_features, train_data["age"])
# Read the test data
# Get a bag of words for the test set, and convert to a numpy array
test_data_features = count_vect.transform(test_data.subscriptionLists)
test_data_features = test_data_features.toarray()
# Use the random forest to make age range predictions
resultForest = forest.predict(test_data_features)
resultBayes = bayes.predict(test_data_features)
resultSVM = svm.predict(test_data_features)
resultSGD = sgd.predict(test_data_features)
outdir = time.strftime("%d-%m-%Y")
if not os.path.exists(outdir):
os.mkdir(outdir)
if not os.path.exists(outdir + "/" + typeOp):
os.mkdir(outdir + "/" + typeOp)
outdir = outdir + "/" + typeOp
output = pd.DataFrame(
data={
"id": test_data["screen_name"],
"realAge": test_data["age"],
"ageRandomForest": resultForest,
"ageNaiveBayes": resultBayes
})
#print output
# Use pandas to write the comma-separated output file
outname = 'subscriptionLists_Bag_of_Words_ForestAndBayes.csv'
fullname = os.path.join(outdir, outname)
output.to_csv(fullname, index=False)
###################################
#******* MODEL EVALUATION *********
###################################
import ml_utils as ml_utils
db_access = MongoDBUtils()
ageRanges = []
if typeOp == 'normal':
ageRanges = db_access.getAgeRanges()
else:
ageRanges = db_access.get3AgeRanges()
target_names = ageRanges
data = df_complete[['screen_name', 'subscriptionLists']]
data = count_vect.fit_transform(data.subscriptionLists)
y_complete = df_complete['age']
name_prefix = 'subscriptionNgrams_' + typeOp + '_' + balanced
#--------------
##BAYES
#--------------
print "Metrics for Naive Bayes:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultBayes,
ageRanges, name_prefix, 'NaiveBayes',
outdir)
print classification_report(test_data['age'].tolist(),
resultBayes,
target_names=target_names)
scores = cross_val_score(bayes,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracyNB = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracyNB
#--------------
##RANDOM FOREST
#--------------
print "Metrics for Random Forest:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultForest,
ageRanges, name_prefix, 'RandomForest',
outdir)
print classification_report(test_data['age'].tolist(),
resultForest,
target_names=target_names)
scores = cross_val_score(forest,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracyRF = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracyRF
#--------------
##SVM
#--------------
print "Metrics for SVM:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultSVM,
ageRanges, name_prefix, 'SVM', outdir)
print classification_report(test_data['age'].tolist(),
resultSVM,
target_names=target_names)
scores = cross_val_score(svm,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracySVM = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracySVM
#--------------
##SGD
#--------------
print "Metrics for SGD:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(), resultSGD,
ageRanges, name_prefix, 'SGD', outdir)
print classification_report(test_data['age'].tolist(),
resultSGD,
target_names=target_names)
scores = cross_val_score(sgd,
data,
y_complete,
cv=StratifiedKFold(n_splits=10,
shuffle=True,
random_state=5),
scoring=make_scorer(accuracy_score))
accuracySGD = round(scores.mean(), 2)
print "10-Fold Accuracy: ", accuracySGD
#--------------
##OUTPUT
#--------------
result = "ACCURACY--> Bayes:", accuracyNB, "|RForest:", accuracyRF, "|SVM:", accuracySVM, "|SGD:", accuracySGD
print result
return result
def main_tweetNgramsAndCustomFields(typeOp,balanced):
if balanced == 'balanced':
train_data=pd.read_csv(DATASET_PATH+"/tweets_balanced_train.csv", sep=",",dtype=str)
test_data=pd.read_csv(DATASET_PATH+"/tweets_balanced_test.csv", sep=",",dtype=str)
else:
train_data=pd.read_csv(DATASET_PATH+"/"+typeOp+"_tweets_train.csv", sep=",",dtype=str)
test_data=pd.read_csv(DATASET_PATH+"/"+typeOp+"_tweets_test.csv", sep=",",dtype=str)
# Show the number of observations for the test and training dataframes
print 'Number of observations in the training data:', len(train_data)
print 'Number of observations in the test data:',len(test_data)
frames = [train_data, test_data]
df_complete= pd.concat(frames)
print 'Number of observations in the whole dataset:',len(df_complete)
stopwords = getCustomStopwords()
transformer_tfidf = TfidfVectorizer(smooth_idf=False,lowercase=False,stop_words=stopwords,max_features=5000, ngram_range=(1,3))
tfidf = transformer_tfidf.fit_transform(train_data.tweets)
'''
headers = ["name", "score"]
idf = transformer_tfidf.idf_
print "Most frequent TFIDF terms in dataset: "
valuesTfIdf = sorted(zip(idf,transformer_tfidf.get_feature_names()), key=lambda x: x[0])
print(tabulate(valuesTfIdf, headers, tablefmt="plain"))
'''
# fit_transform() fits the model and learns the vocabulary; second, it transforms our training data
# into feature vectors.
##To see occurrences of a specific word:
#print count_vect.vocabulary_.get(u'amigos')
train_data_feat = tfidf.toarray()
#print len(train_data) #186 users en train
train_data_features = np.c_[train_data_feat, train_data['friends_count'],train_data['tweets_count'], train_data['linkedin'],train_data['snapchat'], train_data['instagram'],train_data['facebook'],train_data['followers_count'],train_data['favourites_count'],train_data['qtyMentions'],train_data['qtyHashtags'],train_data['qtyUrls'], train_data['qtyEmojis'], train_data['qtyUppercase'],train_data['profile_pic_gender']]
# Sum up the counts of each vocabulary word
dist = np.sum(train_data_features, axis=0)
# Sum up the counts of each vocabulary word
dist = np.sum(train_data_features, axis=0)
# For each, print the vocabulary word and the number of times it
# appears in the training set
#for tag, count in zip(vocab, dist):
# print count, tag
########################################
#******* HYPERPARAMETER TUNING *********
########################################
import ml_utils as ml_utils
#PARAMETERS TUNING
#print ml_utils.SVM_param_selection(train_data_features, train_data["age"]) #RESULT: {'kernel': 'rbf', 'C': 8, 'gamma': 0.01}
#print ml_utils.RandomForest_param_selection(train_data_features, train_data["age"])#RESULT:{'n_estimators': 120, 'max_depth': 30, 'min_samples_leaf': 3}
#print ml_utils.SGD_param_selection(train_data_features, train_data["age"]) #RESULT:{'penalty': 'l2', 'alpha': 0.001, 'n_iter': 40, 'loss': 'log'}
########################################
#******* MODEL TRAINING *********
########################################
print "Training the models..."
# Initialize Multinomial Naive Bayes
bayes = MultinomialNB()
# Initialize a Random Forest classifier with 100 trees
forest = RandomForestClassifier(n_estimators = 120, max_depth= 30, min_samples_leaf= 3)
# Fit the forest to the training set, using the bag of)
svm = SVC(kernel='rbf', C= 8, gamma = 0.01)
sgd = SGDClassifier(loss='log', penalty='l2', alpha=0.001,n_iter=40)
# Fit the forest to the training set, using the bag of words as
# features and the age range as the response variable
forest = forest.fit( train_data_features, train_data["age"] )
bayes = bayes.fit( train_data_features, train_data["age"] )
svm = svm.fit(train_data_features, train_data["age"] )
sgd= sgd.fit(train_data_features, train_data["age"] )
# Read the test data
# Get a bag of words for the test set, and convert to a numpy array
test_data_feat = transformer_tfidf.transform(test_data.tweets)
test_data_feat = test_data_feat.toarray()
test_data_features = np.c_[test_data_feat, test_data['friends_count'],test_data['tweets_count'], test_data['linkedin'],test_data['snapchat'], test_data['instagram'],test_data['facebook'],test_data['followers_count'],test_data['favourites_count'],test_data['qtyMentions'],test_data['qtyHashtags'],test_data['qtyUrls'], test_data['qtyEmojis'], test_data['qtyUppercase'],test_data['profile_pic_gender']]
# Use the random forest to make age range predictions
resultForest = forest.predict(test_data_features)
resultBayes = bayes.predict(test_data_features)
resultSVM= svm.predict(test_data_features)
resultSGD= sgd.predict(test_data_features)
outdir =time.strftime("%d-%m-%Y")
if not os.path.exists(outdir):
os.mkdir(outdir)
if not os.path.exists(outdir +"/"+typeOp):
os.mkdir(outdir +"/"+typeOp)
outdir=outdir +"/"+typeOp
# Copy the results to a pandas dataframe with an "id" column and
# a "age" column
output = pd.DataFrame( data={"id":test_data["screen_name"], "realAge":test_data["age"], "ageRandomForest":resultForest,"ageNaiveBayes":resultBayes})
#print output
# Use pandas to write the comma-separated output file
outname = 'Bigram_model_ForestAndBayes.csv'
fullname = os.path.join(outdir, outname)
output.to_csv(fullname,index=False)
###################################
#******* MODEL EVALUATION *********
###################################
import ml_utils as ml_utils
db_access = MongoDBUtils()
ageRanges=[]
if typeOp=='normal':
ageRanges=db_access.getAgeRanges()
else:
ageRanges=db_access.get3AgeRanges()
target_names=ageRanges
data_aux = transformer_tfidf.fit_transform(df_complete.tweets)
data_aux = data_aux.toarray()
data = np.c_[data_aux, df_complete['friends_count'],df_complete['tweets_count'], df_complete['linkedin'],df_complete['snapchat'], df_complete['instagram'],df_complete['facebook'],df_complete['followers_count'],df_complete['favourites_count'],df_complete['qtyMentions'],df_complete['qtyHashtags'],df_complete['qtyUrls'], df_complete['qtyEmojis'], df_complete['qtyUppercase'],df_complete['profile_pic_gender']]
y_complete = df_complete['age']
name_prefix='tweetNgramsAndCustomFields_'+typeOp+'_'+balanced
print data.shape
#--------------
##BAYES
#--------------
print "Metrics for Naive Bayes:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultBayes,ageRanges,name_prefix,'NaiveBayes',outdir)
print classification_report(test_data['age'].tolist(), resultBayes, target_names=target_names)
scores = cross_val_score(bayes, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
accuracyNB = round(scores.mean(),2)
print "10-Fold Accuracy: ", accuracyNB
#--------------
##RANDOM FOREST
#--------------
print "Metrics for Random Forest:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultForest,ageRanges,name_prefix,'RandomForest',outdir)
print classification_report(test_data['age'].tolist(), resultForest, target_names=target_names)
scores = cross_val_score(forest, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
accuracyRF = round(scores.mean(),2)
print "10-Fold Accuracy: ", accuracyRF
#--------------
##SVM
#--------------
print "Metrics for SVM:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultSVM,ageRanges,name_prefix,'SVM',outdir)
print classification_report(test_data['age'].tolist(), resultSVM, target_names=target_names)
scores = cross_val_score(svm, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
accuracySVM = round(scores.mean(),2)
print "10-Fold Accuracy: ", accuracySVM
#--------------
##SGD
#--------------
print "Metrics for SGD:"
ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultSGD,ageRanges,name_prefix,'SGD',outdir)
print classification_report(test_data['age'].tolist(), resultSGD, target_names=target_names)
scores = cross_val_score(sgd, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
accuracySGD = round(scores.mean(),2)
print "10-Fold Accuracy: ", accuracySGD
#--------------
##OUTPUT
#--------------
result= "ACCURACY--> N.Bayes:",accuracyNB,"|RForest:", accuracyRF,"|SVM:", accuracySVM,"|SGD:", accuracySGD
print result
return result
def main_tweetNgrams(typeOp, balanced):
if balanced == 'balanced':
train_data = pd.read_csv(DATASET_PATH + "/tweets_balanced_train.csv",
sep=",",
dtype=str)[['screen_name', 'tweets', 'age']]
test_data = pd.read_csv(DATASET_PATH + "/tweets_balanced_test.csv",
sep=",",
dtype=str)[['screen_name', 'tweets', 'age']]
else:
#train_data=pd.read_csv(DATASET_PATH+"/"+typeOp+"_tweets_train.csv", sep=",",dtype=str)[['screen_name','tweets','age']]
#test_data=pd.read_csv(DATASET_PATH+"/"+typeOp+"_tweets_test.csv", sep=",",dtype=str)[['screen_name','tweets','age']]
#EXPERIMENT 4
train_data = pd.read_csv(DATASET_PATH + "/" + typeOp +
"_faceAPI_tweets_train.csv",
sep=",",
dtype=str)[['screen_name', 'tweets', 'age']]
test_data = pd.read_csv(DATASET_PATH + "/" + typeOp +
"_faceAPI_tweets_test.csv",
sep=",",
dtype=str)[['screen_name', 'tweets', 'age']]
# Show the number of observations for the test and training dataframes
print 'Number of observations in the training data:', len(train_data)
print 'Number of observations in the test data:', len(test_data)
frames = [train_data, test_data]
df_complete = pd.concat(frames)
print 'Number of observations in the whole dataset:', len(df_complete)
##STOPWORDS EN SPANISH, SCIKIT TRAE SOLO EN INGLES
stopwords = getCustomStopwords()
#count_vect = CountVectorizer(stop_words=stopwords, max_features=5000 ) #Para hacer bag of words
#X_train_counts = count_vect.fit_transform(train_data.tweets)
# fit_transform() fits the model and learns the vocabulary; second, it transforms our training data
# into feature vectors.
transformer_tfidf = TfidfVectorizer(smooth_idf=False,
lowercase=False,
stop_words=stopwords,
max_features=5000,
ngram_range=(1, 3))
tfidf = transformer_tfidf.fit_transform(train_data.tweets)
##To see occurrences of a specific word:
#print count_vect.vocabulary_.get(u'amigos')
train_data_features = tfidf.toarray()
#print len(train_data) #186 users en train
# Take a look at the words in the vocabulary
vocab = transformer_tfidf.get_feature_names()
#print vocab
# Sum up the counts of each vocabulary word
dist = np.sum(train_data_features, axis=0)
# For each, print the vocabulary word and the number of times it
# appears in the training set
#for tag, count in zip(vocab, dist):
# print count, tag
########################################
#******* HYPERPARAMETER TUNING *********
########################################
import ml_utils as ml_utils
#PARAMETERS TUNING
#print ml_utils.SVM_param_selection(train_data_features, train_data["age"]) #RESULT: {'kernel': 'rbf', 'C': 10, 'gamma': 0.1}
#print ml_utils.RandomForest_param_selection(train_data_features, train_data["age"])#RESULT: {'n_estimators': 160, 'max_depth': 20, 'min_samples_leaf': 3}
#print ml_utils.SGD_param_selection(train_data_features, train_data["age"]) #RESULT: {'penalty': 'elasticnet', 'alpha': 0.0001, 'n_iter': 50, 'loss': 'log'}
########################################
#******* MODEL TRAINING *********
########################################
# ********* ENTRENO LOS MODELOS CON LA DATA EN TRAIN*********#
print "Training the Classifiers..."
# Initialize Multinomial Naive Bayes
bayes = MultinomialNB()
# Initialize a Random Forest classifier with 100 trees
forest = RandomForestClassifier(n_estimators=160,
max_depth=20,
min_samples_leaf=3)
# Fit the forest to the training set, using the bag of)
svm = SVC(kernel='rbf', C=10, gamma=0.1)
sgd = SGDClassifier(loss='log',
penalty='l2',
random_state=42,
alpha=0.0001,
n_iter=60)
regr = LinearRegression()
# Fit the forest to the training set, using the bag of words as
# features and the age range as the response variable
#forest = forest.fit( train_data_features, train_data["age"] )
#bayes = bayes.fit( train_data_features, train_data["age"] )
#svm = svm.fit(train_data_features, train_data["age"] )
#sgd= sgd.fit(train_data_features, train_data["age"] )
regr = regr.fit(train_data_features, train_data["age"])
# Read the test data
# Get a bag of words for the test set, and convert to a numpy array
test_data_features = transformer_tfidf.transform(test_data.tweets)
test_data_features = test_data_features.toarray()
# Use the random forest to make age range predictions
#resultForest = forest.predict(test_data_features)
#resultBayes = bayes.predict(test_data_features)
#print "resultbayes: ", resultBayes
#resultSVM= svm.predict(test_data_features)
#resultSGD= sgd.predict(test_data_features)
resultLR = regr.predict(test_data_features)
outdir = time.strftime("%d-%m-%Y")
if not os.path.exists(outdir):
os.mkdir(outdir)
if not os.path.exists(outdir + "/" + typeOp):
os.mkdir(outdir + "/" + typeOp)
outdir = outdir + "/" + typeOp
output = pd.DataFrame(
data={
"id": test_data["screen_name"],
"realAge": test_data["age"],
"ageRandomForest": resultForest,
"ageNaiveBayes": resultBayes,
"ageSVM": resultSVM,
"ageSGD": resultSGD
})
# Use pandas to write the comma-separated output file
outname = 'tweets_ngrams_results.csv'
fullname = os.path.join(outdir, outname)
output.to_csv(fullname, index=False)
###################################
#******* MODEL EVALUATION *********
###################################
print "Evaluating the model --> Calculating metrics ..."
db_access = MongoDBUtils()
ageRanges = []
if typeOp == 'normal':
ageRanges = db_access.getAgeRanges()
else:
ageRanges = db_access.get3AgeRanges()
target_names = ageRanges
data = df_complete[['screen_name', 'tweets']]
data = transformer_tfidf.fit_transform(data.tweets)
y_complete = df_complete['age']
name_prefix = 'tweetNgrams_' + typeOp + '_' + balanced
#--------------
##BAYES
#--------------
#print "Metrics for Naive Bayes:"
#ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultBayes,ageRanges,name_prefix,'NaiveBayes',outdir)
#print classification_report(test_data['age'].tolist(), resultBayes, target_names=target_names)
#scores = cross_val_score(bayes, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
#accuracyNB = round(scores.mean(),2)
#print "10-Fold Accuracy: ", accuracyNB
#--------------
##RANDOM FOREST
#--------------
#print "Metrics for Random Forest:"
#ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultForest,ageRanges,name_prefix,'RandomForest',outdir)
#print classification_report(test_data['age'].tolist(), resultForest, target_names=target_names)
#scores = cross_val_score(forest, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
#accuracyRF = round(scores.mean(),2)
#print "10-Fold Accuracy: ", accuracyRF
#--------------
##SVM
#--------------
#print "Metrics for SVM:"
#ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultSVM,ageRanges,name_prefix,'SVM',outdir)
#print classification_report(test_data['age'].tolist(), resultSVM, target_names=target_names)
#scores = cross_val_score(svm, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
#accuracySVM = round(scores.mean(),2)
#print "10-Fold Accuracy: ", accuracySVM
#--------------
##SGD
#--------------
#print "Metrics for SGD:"
#ml_utils.createConfusionMatrix(test_data['age'].tolist(),resultSGD,ageRanges,name_prefix,'SGD',outdir)
#print classification_report(test_data['age'].tolist(), resultSGD, target_names=target_names)
#scores = cross_val_score(sgd, data, y_complete, cv=StratifiedKFold(n_splits=10, shuffle=True, random_state = 5),scoring=make_scorer(accuracy_score))
#accuracySGD = round(scores.mean(),2)
#print "10-Fold Accuracy: ", accuracySGD
#--------------
##OUTPUT
#--------------
result = "ACCURACY--> N.Bayes:", 0, "|RForest:", 0, "|SVM:", 0, "|SGD:", 0
#print result
return result