class ModelTrainer(object):
def __init__(self):
self.ut = Utility()
def train(self, dataset, drop_element):
#classifier algorithm, n_estimator = jumlah tree, random_state= angka apapun, sengaja didefine biar hasilnya tetap sama
clf = RandomForestClassifier(n_estimators=3,
random_state=2) #coba utak atik
# extract feature needed, drop entity
dataset = dataset.drop(['entity', 'id_text', drop_element], axis=1)
# convert type to numeric
dataset = self.ut.convertToNumeric(dataset)
# dataset = self.ut.oneHotEncoding(dataset)
# determine wich column is feature or label
# X itu fitur
X = dataset.iloc[:, :
-1] # [x = take entire row, y = take all column except last column]
# y itu label
y = dataset.iloc[:, -1] # [x = take entire row, y = last column only]
# get training score using cross validation
result = self.nFoldCrossValidation(X, y, clf, nfold=10)
if drop_element == 'who':
# training and save into pickle
# scenario 1
# joblib.dump(clf,'model/scen1_train_where_halfidn.pkl')
# joblib.dump(clf,'model/HO_scen1_train_where_halfidn.pkl')
# joblib.dump(clf,'model/3_scen1_train_where_halfidn.pkl')
# joblib.dump(clf,'model/HO2_scen1_train_where_halfidn.pkl')
# # scenario 2
# joblib.dump(clf,'model/scen2_train_where_fullidn.pkl')
# joblib.dump(clf,'model/HO_scen2_train_where_fullidn.pkl')
# joblib.dump(clf,'model/3_scen2_train_where_fullidn.pkl')
# joblib.dump(clf,'model/HO2_scen2_train_where_fullidn.pkl')
# # scenario 3
# joblib.dump(clf,'model/scen3_train_where_default.pkl')
# joblib.dump(clf,'model/HO_scen3_train_where_default.pkl')
joblib.dump(clf, 'model/3_scen3_train_where_default.pkl')
# joblib.dump(clf,'model/HO2_scen3_train_where_default.pkl')
# testing
# joblib.dump(clf,'model/s2_testing_where.pkl')
print("Model for WHERE has been saved")
# scenario 1
# self.ut.convertToExcel("./result/scenario1_halfidn_WHERE_10fold.xlsx",result,"Sheet1")
# self.ut.convertToExcel("./result/HO_scenario1_halfidn_WHERE_10fold.xlsx",result,"Sheet1")
# self.ut.convertToExcel("./result/HO2_scenario1_halfidn_WHERE_10fold.xlsx",result,"Sheet1")
# scenario 2
# self.ut.convertToExcel("./result/3_scenario2_fullidn_WHERE_10fold.xlsx",result,"Sheet1")
# self.ut.convertToExcel("./result/HO2_scenario2_fullidn_WHERE_10fold.xlsx",result,"Sheet1")
# scenario 3
self.ut.convertToExcel(
"./result/3_scenario3_default_WHERE_10fold.xlsx", result,
"Sheet1")
# self.ut.convertToExcel("./result/HO2_scenario3_default_WHERE_10fold.xlsx",result,"Sheet1")
# scenario testing
# self.ut.convertToExcel("./result/s2_testing_WHERE_10fold.xlsx",result,"Sheet1")
print(
"Cross Validation for WHERE model has been saved to excel file!"
)
elif drop_element == 'where':
# training and save into pickle
# scenario 1
# joblib.dump(clf,'model/scen1_train_who_halfidn.pkl')
# joblib.dump(clf,'model/HO_scen1_train_who_halfidn.pkl')
# joblib.dump(clf,'model/3_scen1_train_who_halfidn.pkl')
# joblib.dump(clf,'model/HO2_scen1_train_who_halfidn.pkl')
# # scenario 2
# joblib.dump(clf,'model/scen2_train_who_fullidn.pkl')
# joblib.dump(clf,'model/HO_scen2_train_who_fullidn.pkl')
# joblib.dump(clf,'model/3_scen2_train_who_fullidn.pkl')
# joblib.dump(clf,'model/HO2_scen2_train_who_fullidn.pkl')
# # scenario 3
# joblib.dump(clf,'model/scen3_train_who_default.pkl')
# joblib.dump(clf,'model/HO_scen3_train_who_default.pkl')
joblib.dump(clf, 'model/3_scen3_train_who_default.pkl')
# joblib.dump(clf,'model/HO2_scen3_train_who_default.pkl')
# testing
# joblib.dump(clf,'model/s2_testing_who.pkl')
print("Model for WHO has been saved")
# scenario 1
# self.ut.convertToExcel("./result/scenario1_halfidn_WHO_10fold.xlsx",result,"Sheet1")
# self.ut.convertToExcel("./result/HO_scenario1_halfidn_WHO_10fold.xlsx",result,"Sheet1")
# self.ut.convertToExcel("./result/HO2_scenario1_halfidn_WHO_10fold.xlsx",result,"Sheet1")
# scenario 2
# self.ut.convertToExcel("./result/3_scenario2_fullidn_WHO_10fold.xlsx",result,"Sheet1")
# self.ut.convertToExcel("./result/HO2_scenario2_fullidn_WHO_10fold.xlsx",result,"Sheet1")
# scenario 3
self.ut.convertToExcel(
"./result/3_scenario3_default_WHO_10fold.xlsx", result,
"Sheet1")
# self.ut.convertToExcel("./result/HO2_scenario3_default_WHO_10fold.xlsx",result,"Sheet1")
# scenario testing
# self.ut.convertToExcel("./result/s2_testing_WHO_10fold.xlsx",result,"Sheet1")
print(
"Cross Validation for WHO model has been saved to excel file!")
# classic method
def getEvaluationScore(self, X_test, y_test, model):
y_pred = model.predict(X_test)
print(y_pred)
# otak atik aja datanya, gimana biar nilainya jadi ga 0 lagi, undersampling oversampling ?
print("Accuracy: ", (accuracy_score(y_test, y_pred) * 100).round(4))
print("Precision: ", (precision_score(y_test, y_pred) * 100).round(4))
print("Recall: ", (recall_score(y_test, y_pred) * 100).round(4))
print("F-measure: ", (f1_score(y_test, y_pred) * 100).round(4))
print("Confusion matrix:")
print(confusion_matrix(y_test, y_pred))
# cross validation
def nFoldCrossValidation(self, X, y, model, nfold):
# ngitung jumlah class
class_count = y.groupby(y).count().shape[0]
# shuffle biar ngacak di awal, random_state biar dirunning berkali kali tetap sama
k_fold = StratifiedKFold(n_splits=nfold, shuffle=True, random_state=7)
# initiate score lists
precision_list = []
recall_list = []
fscore_list = []
train_score = []
test_score = []
# counter fold, dimulai dari 1
fold_count = 1
print("Confusion matrix of " + model.__class__.__name__ + ":\n")
# train_indices and test_indices returns an array of indices which indicate train and test data (indices = index)
for train_indices, test_indices in k_fold.split(X,
y): #split per n fold
# memisahkan data training dan data testing
X_train, X_test = X.iloc[train_indices], X.iloc[
test_indices] #iloc = locate data by index
y_train, y_test = y.iloc[train_indices], y.iloc[test_indices]
# fit = buat training
model.fit(X_train, y_train)
# prediksi data training
predictions = model.predict(X_train)
# mendapatkan nilai akurasi dengan cara ngebandingin hasil prediksi dengan nilai aslinya (y_train / data training) satu persatu
train_score.append(
accuracy_score(y_train, predictions).round(4)
) #diround 4 biar hasilnya dibulatkan jadi 4 angka di belakang koma
# prediksi data testing
predictions = model.predict(X_test)
# mendapatkan nilai akurasi dengan cara ngebandingin hasil prediksi dengan nilai aslinya (y_test / data testing)
test_score.append(accuracy_score(y_test, predictions).round(4))
# mencari nilai precision, recall dan f_score dengan membandingkan nilai asli (y_testing) dengan hasil prediksi
precision_list.append(
precision_score(y_test, predictions).round(4))
recall_list.append(recall_score(y_test, predictions).round(4))
fscore_list.append(f1_score(y_test, predictions).round(4))
# menunjukkan fold ke berapa, dan confusion matrixnya seperti apa
print("Fold " + str(fold_count) + ":")
# urutan confusion matrix, pokoknya baris bawah, sebelah kanan itu True Positive nya kirinya False Positive, atas True Negative dan False Negative
print(confusion_matrix(y_test, predictions))
print()
fold_count += 1
# hitung rata - rata nilai akurasi, precision, recall, dan f_score
acc_train = (sum(train_score) / len(train_score)).round(4)
acc_test = (sum(test_score) / len(test_score)).round(4)
precision = (sum(precision_list) / len(precision_list)).round(4)
recall = (sum(recall_list) / len(recall_list)).round(4)
f_score = (sum(fscore_list) / len(fscore_list)).round(4)
print("Evaluation using " + model.__class__.__name__ + ":\n")
# simpan data hasil perhitungan akurasi precision recall f_score ke dataframe
fold_index = [str(i + 1) for i in range(nfold)] #create fold index
fold_data = [
fold_index, train_score, test_score, precision_list, recall_list,
fscore_list
]
fold_column = [
'fold', 'acc_train', 'acc_test', 'precision', 'recall', 'f_score'
] #create column name
df_fold = pd.DataFrame(np.column_stack(fold_data),
columns=fold_column) #bikin DataFrame
df_fold = df_fold.set_index('fold') #set data fold as index
#PRINT hasil
print(df_fold)
print("=" * 50 + "\n")
print('Total data classified:', len(X))
# perlu dibandingkan nilai akurasi di training dan di testing, siapa tau ada overfitting, kalau misalnya ga beda jauh, berarti kemungkinan modelnya benar
print('Accuracy on Train:', acc_train)
print('Accuracy on Test:', acc_test)
print('Precision:', precision)
print('Recall:', recall)
print('F-Score:', f_score)
return df_fold
class EvaluateNews(object):
def __init__(self):
self.ut = Utility()
self.fwe = FiveWExtractor()
self.fex = FeatureExtractor()
self.nlp = NLPHelper()
self.tr = ModelTrainer()
def evaluateGoldenDatasetNews(self, file_range=None):
# filerange = (0, 10)
# find feature in one text and save it to excel
path = "./datasets/"
filelist = os.listdir(path)
data = pd.DataFrame()
if file_range:
filelist = filelist[file_range[0]:file_range[1]]
for idx, file in enumerate(filelist):
print(file)
#buka file pickle yang isinya data ner, coref, dan pos dari suatu teks berita
file_temp = self.ut.loadJSON(os.path.join(path, file))
# ekstraksi 5W dari file JSON
try:
temp = self.fwe.extract5w(file_temp["text"],
file_temp["title"])
temp["file"] = file
data = data.append(temp, ignore_index=True)
except:
temp = []
print("It failed huhu")
self.ut.convertToExcel("idnhalf_goldendata_evaluate_089.xlsx", data,
'Sheet1')
print("Evaluating golden data is done!")
def extract5wLocalNewsForEval(self, filename):
data = self.ut.loadCSV(filename, ',', "ISO-8859-1")
data['extracted'] = data.apply(
lambda x: self.fwe.extract5wLocalNews(x['text'], x['title']),
axis=1)
temp = pd.DataFrame()
temp['title'] = data['extracted'].apply(lambda x: x['title'])
temp['text'] = data['extracted'].apply(lambda x: x['text'])
temp['who'] = data['extracted'].apply(lambda x: x['who'])
temp['where'] = data['extracted'].apply(lambda x: x['where'])
temp['what'] = data['extracted'].apply(lambda x: x['what'])
temp['when'] = data['extracted'].apply(lambda x: x['when'])
temp['why'] = data['extracted'].apply(lambda x: x['why'])
# scenario 1
# self.ut.convertToExcel("3_scen1_halfidn_evallocalnews.xlsx",temp,'Sheet1')
# self.ut.convertToExcel("HO_scen1_halfidn_evallocalnews.xlsx",temp,'Sheet1')
# scenario 2
# self.ut.convertToExcel("3_scen2_fullidn_evallocalnews.xlsx",temp,'Sheet1')
# self.ut.convertToExcel("HO_scen2_fullidn_evallocalnews.xlsx",temp,'Sheet1')
# scenario 3
self.ut.convertToExcel("3_scen3_default_evallocalnews.xlsx", temp,
'Sheet1')
# self.ut.convertToExcel("HO_scen3_default_evallocalnews.xlsx",temp,'Sheet1')
print("Evaluating local news is done!")
def extractFeatureFromLocalNews(self, filename):
data = self.ut.loadCSV(filename, ',', "ISO-8859-1")
data['ner'] = data['text'].apply(lambda x: self.nlp.getNER(x))
data['coref'] = data['text'].apply(lambda x: self.nlp.getCoref(x))
feature = pd.DataFrame()
for i in range(data.shape[0]):
feature = feature.append(self.fex.extractFeaturesDirectFromText(
data.iloc[i]),
ignore_index=True)
# scenario 1
# self.ut.convertToExcel("scen1_halfidn_localfeature.xlsx",feature,'Sheet1')
# scenario 2
# self.ut.convertToExcel("scen2_fullidn_localfeature.xlsx",feature,'Sheet1')
# scenario 3
# self.ut.convertToExcel("scen3_default_localfeature.xlsx",feature,'Sheet1')
def evaluateLocalWhoWhere(self, drop_element):
# # scenario 1
# dataset = pd.read_excel('scen1_halfidn_localfeature.xlsx', sheet_name='Sheet1')
# model_where = joblib.load('model/3_scen1_train_where_halfidn.pkl')
# model_who = joblib.load('model/3_scen1_train_who_halfidn.pkl')
# scenario 2
# dataset = pd.read_excel('scen2_fullidn_localfeature.xlsx', sheet_name='Sheet1')
# model_where = joblib.load('model/3_scen2_train_where_fullidn.pkl')
# model_who = joblib.load('model/3_scen2_train_who_fullidn.pkl')
# # scenario 3
dataset = pd.read_excel('scen3_default_localfeature.xlsx',
sheet_name='Sheet1')
model_where = joblib.load('model/3_scen3_train_where_default.pkl')
model_who = joblib.load('model/3_scen3_train_who_default.pkl')
# scenario HO -------------------------------
# # # scenario 1
# dataset = pd.read_excel('scen1_halfidn_localfeature.xlsx', sheet_name='Sheet1')
# model_where = joblib.load('model/HO2_scen1_train_where_halfidn.pkl')
# model_who = joblib.load('model/HO2_scen1_train_who_halfidn.pkl')
# scenario 2
# dataset = pd.read_excel('scen2_fullidn_localfeature.xlsx', sheet_name='Sheet1')
# model_where = joblib.load('model/HO2_scen2_train_where_fullidn.pkl')
# model_who = joblib.load('model/HO2_scen2_train_who_fullidn.pkl')
# # # scenario 3
# dataset = pd.read_excel('scen3_default_localfeature.xlsx', sheet_name='Sheet1')
# model_where = joblib.load('model/HO2_scen3_train_where_default.pkl')
# model_who = joblib.load('model/HO2_scen3_train_who_default.pkl')
# scenario test
# dataset = pd.read_excel('scen1_halfidn_localfeature.xlsx', sheet_name='Sheet1')
# model_where = joblib.load('model/s2_testing_where.pkl')
# model_who = joblib.load('model/s2_testing_who.pkl')
if drop_element == 'who':
self.evaluateModelLocal(dataset, 'who', model_where)
print("Evaluation for WHERE's local classifier is done!")
elif drop_element == 'where':
self.evaluateModelLocal(dataset, 'where', model_who)
print("Evaluation for WHO's local classifier is done!")
def evaluateModelLocal(self, dataset, drop_element, model):
dataset = self.ut.convertToNumeric(dataset)
dataset = dataset.drop(['entity', drop_element], axis=1)
# !!! FOR ONE HOT ENCODING !!!
# dataset = self.ut.oneHotEncoding(dataset)
# determine wich column is feature or label
# X itu fitur
X = dataset.iloc[:, :
-1] # [x = take entire row, y = take all column except last column]
# y itu label
y = dataset.iloc[:, -1] # [x = take entire row, y = last column only]
# get training score using cross validation
# result = self.nFoldCrossValidation(X, y, clf, nfold=10)
result = self.tr.getEvaluationScore(X, y, model)