我用维德分析情绪。当我在维德词典中添加一个单词时,它就起作用了,也就是说,它根据我给这个单词的值来检测新添加的单词是肯定的还是否定的。代码如下:
from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer
sid_obj = SentimentIntensityAnalyzer()
new_word = {'counterfeit':-2,'Good':2,}
sid_obj.lexicon.update(new_word)
sentence = "Company Caught Counterfeit."
sentiment_dict = sid_obj.polarity_scores(sentence)
tokenized_sentence = nltk.word_tokenize(sentence)
pos_word_list=[]
neu_word_list=[]
neg_word_list=[]
for word in tokenized_sentence:
if (sid_obj.polarity_scores(word)['compound']) >= 0.1:
pos_word_list.append(word)
elif (sid_obj.polarity_scores(word)['compound']) <= -0.1:
neg_word_list.append(word)
else:
neu_word_list.append(word)
print('Positive:',pos_word_list)
print('Neutral:',neu_word_list)
print('Negative:',neg_word_list)
print("Overall sentiment dictionary is : ", sentiment_dict)
print("sentence was rated as ", sentiment_dict['neg']*100, "% Negative")
print("sentence was rated as ", sentiment_dict['neu']*100, "% Neutral")
print("sentence was rated as ", sentiment_dict['pos']*100, "% Positive")
print("Sentence Overall Rated As", end = " ")
# decide sentiment as positive, negative and neutral
if sentiment_dict['compound'] >= 0.05 :
print("Positive")
elif sentiment_dict['compound'] <= - 0.05 :
print("Negative")
else :
print("Neutral")
输出如下:
Positive: []
Neutral: ['Company', 'Caught', '.']
Negative: ['Counterfeit']
Overall sentiment dictionary is : {'neg': 0.6, 'neu': 0.4, 'pos': 0.0, 'compound': -0.4588}
sentence was rated as 60.0 % Negative
sentence was rated as 40.0 % Neutral
sentence was rated as 0.0 % Positive
Sentence Overall Rated As Negative
它适用于词典中添加的一个单词。当我尝试使用CSV文件通过使用下面的代码添加多个单词来执行相同操作时:我不会将单词forced添加到我的Vader词典中。你知道吗
new_word={}
import csv
with open('Dictionary.csv', newline='') as csvfile:
reader = csv.DictReader(csvfile)
for row in reader:
new_word[row['Word']] = int(row['Value'])
print(new_word)
sid_obj.lexicon.update(new_word)
上面代码的输出是一个字典,它被更新为字典。这本词典看起来是这样的(它有大约2000个单词,但我只印了一些),它还包括一个单词:
{'CYBERATTACK': -2, 'CYBERATTACKS': -2, 'CYBERBULLYING': -2, 'CYBERCRIME':
-2, 'CYBERCRIMES': -2, 'CYBERCRIMINAL': -2, 'CYBERCRIMINALS': -2,
'MISCHARACTERIZATION': -2, 'MISCLASSIFICATIONS': -2, 'MISCLASSIFY': -2,
'MISCOMMUNICATION': -2, 'MISPRICE': -2, 'MISPRICING': -2, 'STRICTLY': -2}
输出如下:
Positive: []
Neutral: ['Company', 'Caught', 'Counterfeit', '.']
Negative: []
Overall sentiment dictionary is : {'neg': 0.0, 'neu': 1.0, 'pos': 0.0, 'compound': 0.0}
sentence was rated as 0.0 % Negative
sentence was rated as 100.0 % Neutral
sentence was rated as 0.0 % Positive
Sentence Overall Rated As Neutral
在词典中添加多个单词时,我哪里出错了?CSV文件由两列组成。一个是单词,另一个是负数或正数。为什么它仍然被认为是中立的?任何帮助都将不胜感激。非常感谢。你知道吗
解决了,谢谢。问题是我把我的文本放在字典里用大写。它总是应该用小写字母存储。词典中的单词必须用小写字母存储。因为维德在比较之前把所有的东西都转换成小写。你知道吗
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