paranormal-or-skeptic/prepare_data.py
2020-04-27 14:24:12 +02:00

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#!/usr/bin/python3
import re, sys, nltk
from nltk.tokenize import TweetTokenizer
from nltk.corpus import stopwords
from string import punctuation
from nltk.corpus import wordnet as wn
def clear_post(post):
post = post.replace('\\n', ' ')
post = re.sub(r'[\.\,\/\~]+', ' ', post)
post = re.sub(r'(&lt|&gt|\@[a-zA-Z0-9]+)','',post)
post = re.sub(r'[\'\(\)\?\*\"\`\;0-9\[\]\:\%\|\\\!\=\^]+', '', post)
post = re.sub(r'( \- |\-\-+)', ' ', post)
post = re.sub(r' +', ' ', post)
post = post.rstrip(' ')
return post
def create_dict(in_file, expected_file):
posts = {}
tt = TweetTokenizer(preserve_case = False)
stoplist = set(stopwords.words('english') + list(punctuation))
counter = 0
with open(in_file) as in_f, open(expected_file) as exp_f:
for line, exp in zip(in_f, exp_f):
line = line.rstrip('\n').split("\t")[0]
exp = exp.rstrip("\n")
#line = re.sub(r'(\(|)(http|https|www)[a-zA-Z0-9\.\:\/\_\=\&\;\?\+\-\%]+(\)|)', ' internetlink ', line)
#line = line.replace("|", "")
#line = line.replace(":", "")
#post = line
post = clear_post(line)
#post = clear_post(line)
tokenized_line = [token for token in tt.tokenize(post) if token not in stoplist]
bigrams = nltk.bigrams(tokenized_line)
lemas = {}
for word in set(tokenized_line):
res = wn.synsets(word)
if not res:
continue
word_lem = []
for w in res:
le_na = w.lemma_names()
word_lem.append(" ".join(le_na))
lemas[word] = " ".join(word_lem)
if exp == "d":
ex_val = ""
else:
ex_val = int(exp)
if ex_val == 0:
ex_val = -1
counter+=1
big_merged = [i[0] +"_" + i[1] for i in list(bigrams)]
posts[counter] = [ex_val, " ".join(tokenized_line), " ".join(big_merged), lemas]
# TODO
# Można stworzyc tutaj juz bigramy
return posts
def create_file(posts):
for c, v in posts.items():
exp = v[0]
post = v[1]
big = v[2]
lem = list(v[3].values())
lem = " ".join(lem)
#print(exp, "|", post)
print(exp, "|words", post, "|bigrams", big, "|lemmas" , lem)
def main():
if len(sys.argv) != 3:
print("Synthax is ./prepare_data.py in_file expected_file")
return
in_file = str(sys.argv[1])
expected_file = str(sys.argv[2])
posts = create_dict(in_file, expected_file)
create_file(posts)
main()
# --passes 18 -b 16 --random_seed 123456789 --link logistic --loss_function logistic -k cashe_file vw-meta-cashe