如何使用任何 Python 情感分析库（NLTK/VADER）查找文本（Tweet）的价态、唤醒度和优势度？

Question

I am using VADER & NLTK to find the polarity of a tweet, but I was looking for how to find Valence, Arousal & Dominance values individually. Also, I want to know does Polarity is same as Valence in Sentiment Analysis? You can even try to do that using any other Sentiment Analysis Libraries like TextBlob, spaCy, TensorFlow etc.

Answer 1

I've found this library. And in my code I've used this .csv file with words' VAD scores.

And applied this code for finding the email's dataset VAD scores:

def VAD (text, vad_scores):
    i,j=0, 0
    text_vad=np.zeros([3,])
    for word in text.split(' '):
        neg=1   # reverse polarity for this word
        if word in vad_scores.index:
            if 'no' in text.split(' ')[j-6:j] or 'not' in text.split(' ')[j-6:j] or 'n\'t' in str(text.split(' ')[j-3:j]):
                neg=-1
            
            text_vad=vad_scores.loc[word]*neg + text_vad
            i+=1
                      
        j+=1   
    return text_vad.valence/i, text_vad.arousal/i, text_vad.dominance/i 
    
corpus=np.array(email['text'])
vad_scores=pd.read_csv("vad-nrc.csv", index_col='Word')
vad_feat=[VAD(text, vad_scores) for text in  corpus ]   
email[['valence', 'arousal', 'dominance']]=vad_feat