在下图,至少出现了三个环节,1)文档归类 2)文档目的归类 3)主题信息抽取。
# !pip instlla -U spacy
# !python -m spacy download en_core_web_sm
import spacy
from spacy.lang.en.stop_words import STOP_WORDS
from string import punctuation
stopwords = list(STOP_WORDS)
nlp = spacy.load(‘en_core_web_sm’)
doc = nlp(text)
tokens = [token.text for token in doc]
print(tokens)
punctuation = punctuation + ‘\n’
punctuation
word_frequencies = {}
for word in doc:
if word.text.lower() not in stopwords:
if word.text.lower() not in punctuation:
if word.text not in word_frequencies.keys():
word_frequencies[word.text] = 1
else:
word_frequencies[word.text] += 1
print(word_frequencies)
max_frequency = max(word_frequencies.values())
max_frequency
for word in word_frequencies.keys():
word_frequencies[word] = word_frequencies[word]/max_frequency
print(word_frequencies)
sentence_tokens = [sent for sent in doc.sents]
print(sentence_tokens)
sentence_scores = {}
for sent in sentence_tokens:
for word in sent:
if word.text.lower() in word_frequencies.keys():
if sent not in sentence_scores.keys():
sentence_scores[sent] = word_frequencies[word.text.lower()]
else:
sentence_scores[sent] += word_frequencies[word.text.lower()]
sentence_scores
from heapq import nlargest
select_length = int(len(sentence_tokens)*0.3)
select_length
summary = nlargest(select_length, sentence_scores, key = sentence_scores.get)
summary
final_summary = [word.text for word in summary]
summary = ‘ ‘.join(final_summary)
输入原始文档:
text = “””
Maria Sharapova has basically no friends as tennis players on the WTA Tour. The Russian player has no problems in openly speaking about it and in a recent interview she said: ‘I don’t really hide any feelings too much.
I think everyone knows this is my job here. When I’m on the courts or when I’m on the court playing, I’m a competitor and I want to beat every single person whether they’re in the locker room or across the net.
So I’m not the one to strike up a conversation about the weather and know that in the next few minutes I have to go and try to win a tennis match.
I’m a pretty competitive girl. I say my hellos, but I’m not sending any players flowers as well. Uhm, I’m not really friendly or close to many players.
I have not a lot of friends away from the courts.’ When she said she is not really close to a lot of players, is that something strategic that she is doing? Is it different on the men’s tour than the women’s tour? ‘No, not at all.
I think just because you’re in the same sport doesn’t mean that you have to be friends with everyone just because you’re categorized, you’re a tennis player, so you’re going to get along with tennis players.
I think every person has different interests. I have friends that have completely different jobs and interests, and I’ve met them in very different parts of my life.
I think everyone just thinks because we’re tennis players we should be the greatest of friends. But ultimately tennis is just a very small part of what we do.
There are so many other things that we’re interested in, that we do.’
“””
I think just because you’re in the same sport doesn’t mean that you have to be friends with everyone just because you’re categorized, you’re a tennis player, so you’re going to get along with tennis players. Maria Sharapova has basically no friends as tennis players on the WTA Tour. I have friends that have completely different jobs and interests, and I’ve met them in very different parts of my life. I think everyone just thinks because we’re tennis players So I’m not the one to strike up a conversation about the weather and know that in the next few minutes I have to go and try to win a tennis match. When she said she is not really close to a lot of players, is that something strategic that she is doing?
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本文至少精简地告诉大家,文章自动摘要需要哪些关键环节。
创建数据集可能是一项繁重的工作,并且经常是学习数据科学中被忽视的部分,实际工作要给以重视。不过,这是另一篇博客文章。阿努普·辛格