def get_polarity(word, is_neg):
if util.is_in_file('lists/positive-words.txt', word, False):
polarity = '+'
elif util.is_in_file('lists/negative-words.txt', word, False):
polarity = '-'
elif util.is_in_file('lists/swear-words.txt', word, False):
polarity = '-'
else:
polarity = '0'
if is_neg:
polarity = switch(polarity)
return polarity
def get_polarity(word,is_neg):
if util.is_in_file('lists/positive-words.txt',word,False):
polarity='+'
elif util.is_in_file('lists/negative-words.txt',word,False):
polarity='-'
elif util.is_in_file('lists/swear-words.txt',word,False):
polarity='-'
else :
polarity='0'
if is_neg :
polarity=switch(polarity)
return polarity
def left_adjective_sentiment(aspect,pos_tweet,is_neg) :
sentiment=['NULL']*3
sentiment[0]=aspect
ctr=util.get_index(pos_tweet,aspect,0)-1
while(pos_tweet[ctr][1]!='A' and ctr>=0) :
ctr=ctr-1
else :
if(pos_tweet[ctr][1]=='A' and ctr>=0) :
adj=pos_tweet[ctr][0]
sentiment[1]=adj
if util.is_in_file('lists/comparative-words.txt',adj,False) or util.is_in_file('lists/superlative-words.txt',adj,False) :
sentiment[2]=switch(get_polarity(adj,is_neg))
else :
sentiment[2]=get_polarity(adj,is_neg)
ctr=TERMINATE
return sentiment
def found_negation(aspect,pos_tweet,wsize=NEGATION_WINDOW):
is_neg=False
if len(pos_tweet)<wsize :
wsize=len(pos_tweet)
ind=util.get_index(pos_tweet,aspect,0)
if ind<wsize :
start=0
end=wsize-1
else :
start=wsize-ind+1
end=ind
for i in range(start,end+1):
word=pos_tweet[i][0]
if util.is_in_file('lists/negative-words.txt',word,False) or util.is_in_file('lists/swear-words.txt',word,False):
is_neg=True
return is_neg
def right_verb_sentiment(aspect,pos_tweet,is_neg) :
sentiment=['NULL']*3
sentiment[0]=aspect
ctr=util.get_index(pos_tweet,aspect,0)+1
while(ctr>=0 and ctr<len(pos_tweet) and pos_tweet[ctr][1]!='V') :
ctr=ctr+1
else :
if(ctr>=0 and ctr<len(pos_tweet) and pos_tweet[ctr][1]=='R') :
verb=pos_tweet[ctr][0]
sentiment[1]=verb
if not(util.is_in_file('lists/copulative.txt',verb,False)) and not(util.is_in_file('lists/intensifier.txt',verb,False)) :
sentiment[2]=get_polarity(verb,is_neg)
else :
sentiment[2]=str('0')
ctr=TERMINATE
return sentiment
def right_adjective_sentiment(aspect,pos_tweet,is_neg) :
sentiment=['NULL']*3
sentiment[0]=aspect
ctr=util.get_index(pos_tweet,aspect,0)+1
while(ctr>=0 and ctr<len(pos_tweet) and pos_tweet[ctr][1]!='A') :
ctr=ctr+1
else :
if(ctr>=0 and ctr<len(pos_tweet) and pos_tweet[ctr][1]=='A') :
adj=pos_tweet[ctr][0]
sentiment[1]=adj
if not(util.is_in_file('lists/intensifier.txt',adj,False)) :
if util.is_in_file('lists/comparative-words.txt',adj,False) or util.is_in_file('lists/superlative-words.txt',adj,False) :
sentiment[2]=switch(get_polarity(adj,is_neg))
else :
sentiment[2]=get_polarity(adj,is_neg)
ctr=TERMINATE
return sentiment
def found_negation(aspect, pos_tweet, wsize=NEGATION_WINDOW):
is_neg = False
if len(pos_tweet) < wsize:
wsize = len(pos_tweet)
ind = util.get_index(pos_tweet, aspect, 0)
if ind < wsize:
start = 0
end = wsize - 1
else:
start = wsize - ind + 1
end = ind
for i in range(start, end + 1):
word = pos_tweet[i][0]
if util.is_in_file('lists/negative-words.txt',
word, False) or util.is_in_file(
'lists/swear-words.txt', word, False):
is_neg = True
return is_neg
def left_adjective_sentiment(aspect, pos_tweet, is_neg):
sentiment = ['NULL'] * 3
sentiment[0] = aspect
ctr = util.get_index(pos_tweet, aspect, 0) - 1
while (pos_tweet[ctr][1] != 'A' and ctr >= 0):
ctr = ctr - 1
else:
if (pos_tweet[ctr][1] == 'A' and ctr >= 0):
adj = pos_tweet[ctr][0]
sentiment[1] = adj
if util.is_in_file('lists/comparative-words.txt', adj,
False) or util.is_in_file(
'lists/superlative-words.txt', adj, False):
sentiment[2] = switch(get_polarity(adj, is_neg))
else:
sentiment[2] = get_polarity(adj, is_neg)
ctr = TERMINATE
return sentiment
def right_verb_sentiment(aspect, pos_tweet, is_neg):
sentiment = ['NULL'] * 3
sentiment[0] = aspect
ctr = util.get_index(pos_tweet, aspect, 0) + 1
while (ctr >= 0 and ctr < len(pos_tweet) and pos_tweet[ctr][1] != 'V'):
ctr = ctr + 1
else:
if (ctr >= 0 and ctr < len(pos_tweet) and pos_tweet[ctr][1] == 'R'):
verb = pos_tweet[ctr][0]
sentiment[1] = verb
if not (util.is_in_file('lists/copulative.txt', verb,
False)) and not (util.is_in_file(
'lists/intensifier.txt', verb, False)):
sentiment[2] = get_polarity(verb, is_neg)
else:
sentiment[2] = str('0')
ctr = TERMINATE
return sentiment
def right_adjective_sentiment(aspect, pos_tweet, is_neg):
sentiment = ['NULL'] * 3
sentiment[0] = aspect
ctr = util.get_index(pos_tweet, aspect, 0) + 1
while (ctr >= 0 and ctr < len(pos_tweet) and pos_tweet[ctr][1] != 'A'):
ctr = ctr + 1
else:
if (ctr >= 0 and ctr < len(pos_tweet) and pos_tweet[ctr][1] == 'A'):
adj = pos_tweet[ctr][0]
sentiment[1] = adj
if not (util.is_in_file('lists/intensifier.txt', adj, False)):
if util.is_in_file('lists/comparative-words.txt', adj,
False) or util.is_in_file(
'lists/superlative-words.txt', adj,
False):
sentiment[2] = switch(get_polarity(adj, is_neg))
else:
sentiment[2] = get_polarity(adj, is_neg)
ctr = TERMINATE
return sentiment