2020-05-02 22:45:56 +02:00
|
|
|
#using NLTK library, we can do lot of text preprocesing
|
|
|
|
import nltk
|
|
|
|
from nltk.tokenize import word_tokenize
|
|
|
|
#nltk.download('stopwords')
|
|
|
|
from nltk.corpus import stopwords
|
2020-04-18 20:39:32 +02:00
|
|
|
import random
|
2020-05-02 22:45:56 +02:00
|
|
|
import pickle
|
|
|
|
#function to split text into word
|
|
|
|
|
|
|
|
def my_tokenize(text):
|
|
|
|
tokens = word_tokenize(text)
|
|
|
|
stop_words = set(stopwords.words('english'))
|
|
|
|
tokens = [w for w in tokens if not w in stop_words]
|
|
|
|
return tokens
|
|
|
|
|
|
|
|
|
|
|
|
def post_list(in_file):
|
|
|
|
post_list = []
|
2020-04-18 20:39:32 +02:00
|
|
|
with open(in_file) as f:
|
2020-05-02 22:45:56 +02:00
|
|
|
for line in f:
|
|
|
|
tokens = my_tokenize(line)
|
|
|
|
post_list.append(tokens)
|
|
|
|
|
|
|
|
return post_list
|
2020-04-18 20:39:32 +02:00
|
|
|
|
|
|
|
|
2020-05-02 22:45:56 +02:00
|
|
|
def exp_list(in_file):
|
|
|
|
exp_list = []
|
|
|
|
with open(in_file) as f:
|
|
|
|
for line in f:
|
|
|
|
exp_list.append(float(line))
|
|
|
|
|
2020-04-18 20:39:32 +02:00
|
|
|
return exp_list
|
|
|
|
|
2020-05-02 22:45:56 +02:00
|
|
|
|
|
|
|
def make_dictionary(posts):
|
|
|
|
my_dict = dict()
|
|
|
|
for post in posts:
|
|
|
|
for t in post:
|
|
|
|
if not t in my_dict:
|
|
|
|
my_dict[t] = random.randint(-1,1)*0.1
|
|
|
|
|
|
|
|
with open('dict.pickle', 'wb') as handle:
|
|
|
|
pickle.dump(my_dict, handle)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
def train(in_file, exp_file):
|
|
|
|
pl = post_list(in_file)
|
|
|
|
print("pl created")
|
|
|
|
el = exp_list(exp_file)
|
|
|
|
print("el created")
|
|
|
|
#make_dictionary(pl)
|
|
|
|
with open('dict.pickle', 'rb') as f:
|
|
|
|
dictionary = pickle.load(f)
|
|
|
|
print("dict created")
|
|
|
|
lr = 0.001
|
|
|
|
w0 = 0.1
|
2020-04-18 20:39:32 +02:00
|
|
|
loss_sum = 0
|
2020-05-02 22:45:56 +02:00
|
|
|
loss_sum_counter = 1
|
|
|
|
|
|
|
|
|
|
|
|
while True:
|
|
|
|
for post, y in zip(pl,el):
|
2020-04-18 20:39:32 +02:00
|
|
|
y_hat = w0
|
2020-05-02 22:45:56 +02:00
|
|
|
for token in post:
|
|
|
|
y_hat += dictionary[token]
|
2020-04-18 20:39:32 +02:00
|
|
|
loss = (y_hat - y)**2
|
|
|
|
loss_sum += loss
|
2020-05-02 22:45:56 +02:00
|
|
|
|
|
|
|
if loss_sum_counter % 10000 == 0:
|
|
|
|
print(str(loss_sum_counter) + " " + str(loss_sum / 10000))
|
|
|
|
loss_sum = 0.0
|
|
|
|
loss_sum_counter += 1
|
|
|
|
|
|
|
|
#updating weights
|
2020-04-18 20:39:32 +02:00
|
|
|
delta = (y_hat - y) * lr
|
2020-05-02 22:45:56 +02:00
|
|
|
w0 -= delta
|
|
|
|
for token in post:
|
|
|
|
dictionary[token] -= delta
|
|
|
|
|
|
|
|
|
|
|
|
if loss_sum_counter > 7000000:
|
|
|
|
break
|
|
|
|
|
|
|
|
#We save only things we need for prediction
|
|
|
|
model = (dictionary)
|
|
|
|
pickle.dump(model, open("model.pkl", "wb"))
|
|
|
|
|
|
|
|
train("train/in.tsv", "train/expected.tsv")
|
|
|
|
|
|
|
|
# import csv
|
|
|
|
# import re
|
|
|
|
# import random
|
|
|
|
# import json
|
|
|
|
# from math import sqrt
|
|
|
|
|
|
|
|
# def make_dict(path):
|
|
|
|
# dict = {}
|
|
|
|
# with open(path) as in_file:
|
|
|
|
# for line in in_file:
|
|
|
|
# for word in re.findall(r"[\w']+", line):
|
|
|
|
# if not word in dict:
|
|
|
|
# weight = round(random.random()%0.2-0.1,2)
|
|
|
|
# dict[word] = weight
|
|
|
|
|
|
|
|
# print("dict maked")
|
|
|
|
# with open('dict.txt', 'w') as file:
|
|
|
|
# json.dump(dict, file)
|
|
|
|
# return dict
|
|
|
|
|
|
|
|
# def make_posts_list(in_file):
|
|
|
|
# posts = []
|
|
|
|
# counter = 0
|
|
|
|
# with open(in_file) as f:
|
|
|
|
# for line in f:
|
|
|
|
# if counter < 1000:
|
|
|
|
# posts.append(line)
|
|
|
|
# else:
|
|
|
|
# counter +=1
|
|
|
|
|
|
|
|
# return posts
|
|
|
|
|
|
|
|
# def make_exp_list(exp_file):
|
|
|
|
# exp_list = []
|
|
|
|
# with open(exp_file) as f:
|
|
|
|
# for exp_line in f:
|
|
|
|
# y = exp_line
|
|
|
|
# exp_list.append(float(y.split('\n')[0]))
|
|
|
|
|
|
|
|
# return exp_list
|
2020-04-18 20:39:32 +02:00
|
|
|
|
2020-05-02 22:45:56 +02:00
|
|
|
# def train_model(in_path, exp_path):
|
|
|
|
# with open('dict.txt', 'r') as file:
|
|
|
|
# dict = json.load(file)
|
|
|
|
# posts = make_posts_list(in_path)
|
|
|
|
# exp = make_exp_list(exp_path)
|
|
|
|
# w0 = 2013
|
|
|
|
# lr = 0.0000001
|
|
|
|
# epchos = 0
|
|
|
|
# loss_sum = 0
|
|
|
|
# last_sum = 10
|
|
|
|
# loss_counter = 0
|
|
|
|
# print("Zaczynam")
|
|
|
|
# while epchos < 10000:
|
2020-04-18 20:39:32 +02:00
|
|
|
|
2020-05-02 22:45:56 +02:00
|
|
|
# loss_cost = 0
|
|
|
|
# for in_line, exp_line in zip(posts, exp):
|
|
|
|
# loss_counter+=1
|
|
|
|
# #losowy przykład ze zbioru uczącego
|
|
|
|
# #print("new post" + str(random.randint(0,10)))
|
|
|
|
# post = in_line
|
|
|
|
# error_rate = 1
|
|
|
|
# y = int(exp_line)
|
|
|
|
# #loop_counter = 0
|
|
|
|
# #while (error_rate > 0.2 and loop_counter < 10000):
|
|
|
|
# #loop_counter +=1
|
|
|
|
# y_hat = w0
|
|
|
|
# for word in re.findall(r"[\w']+", post):
|
|
|
|
# #dict[word] -= (y_hat - y)*lr
|
|
|
|
# y_hat += dict[word]
|
|
|
|
# loss = (y_hat - y)**2
|
|
|
|
# loss_sum += loss
|
|
|
|
# #error_rate = (y_hat - y)**2
|
|
|
|
# # if loop_counter%1000 == 0:
|
|
|
|
# # print(error_rate)
|
|
|
|
# # loss_cost += error_rate
|
|
|
|
# # if loss_counter%1000==0:
|
|
|
|
# # print(loss_sum/1000)
|
|
|
|
# # loss_sum = 0
|
|
|
|
|
|
|
|
# #uczenie
|
|
|
|
# delta = (y_hat - y) * lr
|
|
|
|
# w0 = w0 - delta
|
|
|
|
# for word in re.findall(r"[\w']+", post):
|
|
|
|
# dict[word] -= delta
|
|
|
|
|
2020-04-18 20:39:32 +02:00
|
|
|
|
2020-05-02 22:45:56 +02:00
|
|
|
# real_loss = loss_sum/loss_counter
|
|
|
|
# print(real_loss)
|
|
|
|
|
|
|
|
# # if real_loss > last_sum:
|
|
|
|
# # break
|
|
|
|
# # else:
|
|
|
|
# # last_sum = real_loss
|
|
|
|
# last_sum = real_loss
|
|
|
|
# loss_sum = 0
|
|
|
|
# loss_counter = 0
|
|
|
|
# epchos +=1
|
|
|
|
# with open('dict2.txt', 'w') as file:
|
|
|
|
# json.dump(dict, file)
|
|
|
|
|
|
|
|
# def predict(path):
|
|
|
|
# results = []
|
|
|
|
# with open('dict2.txt', 'r') as file:
|
|
|
|
# dict = json.load(file)
|
|
|
|
|
|
|
|
# with open(path+"/in.tsv") as in_file:
|
|
|
|
# for in_line in in_file:
|
|
|
|
# print("new post" + str(random.randint(0,10)))
|
|
|
|
# post = in_line
|
|
|
|
# y=0
|
|
|
|
# for word in re.findall(r"[\w']+", post):
|
|
|
|
# if word in dict:
|
|
|
|
# y += dict[word]
|
|
|
|
# if y > 0.5:
|
|
|
|
# results.append("1")
|
|
|
|
# else:
|
|
|
|
# results.append("0")
|
|
|
|
|
|
|
|
# with open(path+"/out.tsv", 'wt') as tsvfile:
|
|
|
|
# tsv_writer = csv.writer(tsvfile, delimiter='\t')
|
|
|
|
# for i in results:
|
|
|
|
# tsv_writer.writerow(i)
|
|
|
|
|
|
|
|
# #make_dict("train/in.tsv")
|
|
|
|
# #train_model("train/in.tsv", "train/expected.tsv")
|
|
|
|
|
|
|
|
# def check_dev():
|
|
|
|
# with open("dev-0/out.tsv") as out_file, open("dev-0/expected.tsv") as exp_file:
|
|
|
|
# counter = 0
|
|
|
|
# positive = 0
|
|
|
|
# for out_line, exp_line in zip(out_file, exp_file):
|
|
|
|
# counter+=1
|
|
|
|
# if out_line == exp_line:
|
|
|
|
# positive += 1
|
|
|
|
# print(positive/counter)
|
|
|
|
|
|
|
|
# #predict("dev-0")
|
|
|
|
# #predict("test-A")
|