def stem_tokens(tokens):
stop = nltk.corpus.stopwords.words('english')
punctuation = u",.;:'()"
return [
wnl().lemmatize(item.strip(punctuation)) for item in tokens
if item not in stop
]
def __init__(self, data_dir, df=10**6):
self.terms_store_loc = "%s/terms_store.db" % data_dir
self.tweet_index_loc = "%s/tweet_index.db" % data_dir
self.tweet_store_loc = "%s/tweet_vector.db" % data_dir
self.term_id_map = None
self.id_term_map = None
self.id_term_freq = None
self.total_freq = 0
self.id_index_map = None
self.lmtz = wnl()
self.df = df
def lemmaExtractor(self,term): lemma = wnl().lemmatize(term) if lemma == term : return "" return lemma
def __init__(self):
self.wnl = wnl()
from nltk import WordNetLemmatizer as wnl
import nltk
#Lemmatize
lemm = wnl().lemmatize('cats')
print(lemm)
#Finding Named Entity
sentence = "This is normal sentence by Neil Shah"
#Create tokens
tokens = nltk.word_tokenize(text)
#Find POS of that tokens
tokens = nltk.pos_tag(tokens)
temp = nltk.ne_chunk(tokens, binary=True)
#Function which would find NamedEntity from POS chunks
def NE_ext(temp):
entity_names = []
if hasattr(temp,'node') and temp.node:
if temp.node == 'NE':
entity_names.append(' '.join([child[0] for child in temp]))
else:
for child in temp:
entity_names.extend(NE_ext(child))
return entity_names
#Return only named entity from POS chunks
NamedEntity = NE_ext(temp)
