def validate_model(validate_data, columns, mentioned_clf, clfs):
logger.info("Begin validate")
content_validate = validate_data.iloc[:, 1]
validate_data_segs = seg_words(content_validate)
logger.debug("seg validate data done")
scores = dict()
predict = mentioned_clf.predict(validate_data_segs)
predict = predict * -2
for column in columns:
logger.debug("predict:%s", column)
tmp_predict = predict.copy()
for v_index, v_content_seg in enumerate(validate_data_segs):
if tmp_predict[v_index] == 0:
tmp_predict[v_index] = clfs[column].predict([v_content_seg])
report(validate_data[column], tmp_predict)
score = f1_score(validate_data[column], tmp_predict, average='macro')
scores[column] = score
str_score = "\n"
score = np.mean(list(scores.values()))
for column in columns:
str_score = str_score + column + ":" + str(scores[column]) + "\n"
logger.info("f1_scores: %s\n" % str_score)
logger.info("f1_score: %s" % score)
logger.info("complete validate model")
def train_mentioned():
logger.info("########################################")
logger.info("start train mentioned models")
logger.info("########################################")
# load train data
train_data_df = load_data_from_csv(config.train_data_path)
validate_data_df = load_data_from_csv(config.validate_data_path)
content_train = train_data_df.iloc[0:config.train_data_size, 1]
logger.debug("start seg train data")
train_content_segs = seg_words(content_train)
logger.debug("start seg validate data")
content_validate = validate_data_df.iloc[0:, 1]
validate_segs = seg_words(content_validate)
logger.debug("load vectorizer")
vectorizer_tfidf = joblib.load(config.model_save_path + vec_name)
for model in models:
train_mentioned_model(train_data_df, train_content_segs,
validate_data_df, validate_segs,
vectorizer_tfidf, model)
def vectorizer():
logger.info("start to vectorizer content")
train_data = load_data_from_csv(config.train_data_path)
content_segs = seg_words(train_data.iloc[0:, 1])
tf_idf = TfidfVectorizer(ngram_range=(1, 5),
min_df=2,
norm="l2",
max_df=0.4,
stop_words=stopwords)
tf_idf.fit(content_segs)
if not os.path.exists(config.model_save_path):
os.makedirs(config.model_save_path)
joblib.dump(tf_idf, config.model_save_path + vec_name, compress=True)
logger.info("succes to save vectorizer")
def train_specific_model(train_data):
columns = train_data.columns.values.tolist()
logger.debug("begin to seg train content")
content_segments = seg_words(
train_data.content.iloc[0:config.train_data_size])
logger.debug("seg train content done")
vectorizer = joblib.load(config.model_save_path + vec_name)
logger.debug("load vectorizer")
validate_data_df = load_data_from_csv(config.validate_data_path)
validata_segs = seg_words(validate_data_df.content)
logger.debug("seg validate content")
scores = dict()
for model_name in columns[:-1]:
logger.info("begin to train %s model", model_name)
cw = [{
-2: a,
-1: b,
0: w,
1: x
} for a in range(1, 3) for b in range(5, 8) for w in range(8, 12)
for x in range(5, 8)]
# cw = {0: 7, 1: 6, -1: 6, -2: 1}
positive_clf = TextClassifier(vectorizer=vectorizer, class_weight=cw)
y_label = train_data[model_name].iloc[0:config.train_data_size]
positive_clf.fit(content_segments, y_label)
y_pre = positive_clf.predict(validata_segs)
y_true = validate_data_df[model_name].iloc[0:]
report(y_true, y_pre)
score = f1_score(y_true, y_pre, average="macro")
logger.info("score for model:%s is %s ", model_name, str(score))
scores[model_name] = score
joblib.dump(positive_clf,
config.model_save_path + model_name + ".pkl",
compress=True)
score = np.mean(list(scores.values()))
logger.info("f1_scores: %s" % score)
args = parser.parse_args()
model_name = args.model_name
if not model_name:
model_name = "model_dict.pkl"
# load data
logger.info("start load data...")
test_data_df = load_data_from_csv(config.test_data_path)
# load model
logger.info("start load model...")
classifier_dict = joblib.load(config.model_save_path + model_name)
columns = test_data_df.columns.tolist()
# seg words
logger.info("start seg test data...")
content_test = test_data_df.iloc[:, 1]
content_test = seg_words(content_test)
logger.info("complete seg test data.")
# model predict
logger.info("start predict test data...")
for column in columns[2:]:
test_data_df[column] = classifier_dict[column].predict(content_test)
logger.info("compete %s predict." % column)
test_data_df.to_csv(config.test_data_predict_out_path,
encoding="utf_8_sig",
index=False)
logger.info("compete predict test data.")
help='the name of model')
args = parser.parse_args()
model_name = args.model_name
if not model_name:
model_name = "model_dict.pkl"
# load train data
logger.info("start load data")
train_data_df = load_data_from_csv(config.train_data_path)
validate_data_df = load_data_from_csv(config.validate_data_path)
content_train = train_data_df.iloc[:, 1]
logger.info("start seg train data")
content_train = seg_words(content_train)
logger.info("complete seg train data")
columns = train_data_df.columns.values.tolist()
logger.info("start train feature extraction")
vectorizer_tfidf = TfidfVectorizer(analyzer='word', ngram_range=(1, 5), min_df=5, norm='l2')
vectorizer_tfidf.fit(content_train)
logger.info("complete train feature extraction models")
logger.info("vocab shape: %s" % np.shape(vectorizer_tfidf.vocabulary_.keys()))
# model train
logger.info("start train model")
classifier_dict = dict()
for column in columns[2:]:
label_train = train_data_df[column]
classifier_dict = dict()
for column in columns[2:]:
label_train = train_data_df[column]
text_classifier = TextClassifier(vectorizer=vectorizer_tfidf)
logger.info("start train %s model" % column)
text_classifier.fit(content_train, label_train)
logger.info("complete train %s model" % column)
classifier_dict[column] = text_classifier
logger.info("complete train model")
# validate model
content_validate = validate_data_df.iloc[:, 1]
logger.info("start seg validate data")
content_validate = seg_words(content_validate)
logger.info("complete seg validate data")
logger.info("start validate model")
f1_score_dict = dict()
for column in columns[2:]:
label_validate = validate_data_df[column]
text_classifier = classifier_dict[column]
f1_score = text_classifier.get_f1_score(content_validate,
label_validate)
f1_score_dict[column] = f1_score
f1_score = np.mean(list(f1_score_dict.values()))
str_score = "\n"
for column in columns[2:]:
str_score = str_score + column + ":" + str(
#!/user/bin/env python
# -*- coding:utf-8 -*-
from data_process import load_data_from_csv, seg_words
from sklearn.feature_extraction.text import TfidfVectorizer
import config
import numpy as np
import pickle
if __name__ == '__main__':
# load train data
train_data_df = load_data_from_csv(config.train_data_path)
validate_data_df = load_data_from_csv(config.validate_data_path)
content_train = train_data_df.iloc[:, 1]
print("start seg train data")
content_train = seg_words(content_train)
print("complete seg train data")
print("start train feature extraction")
vectorizer_tfidf = TfidfVectorizer(analyzer='word',
ngram_range=(1, 5),
min_df=5,
norm='l2')
vectorizer_tfidf.fit(content_train)
print("complete train feature extraction models")
print("vocab shape: ")
print(vectorizer_tfidf.vocabulary_.keys())
pickle.dump(vectorizer_tfidf, open("../model/vectorizer_tfidf.pkl", 'w'))
