CODEWITHSUNDEEP
pythonemojisentiment-analysisvader
Viol1997
Viol1997

Reputation: 173

VaderSentiment: emoji analyzer does not work in Jupyter Notebook

I am trying to do some sentiment analysis on r/wallstreetbets content and would also like to use the meaning of emojis.

Here is my code:

from nltk.sentiment.vader import SentimentIntensityAnalyzer

wsb_lingo = {
    "bullish": 4.0,
    "bearish": -4.0,
    "bagholder": -4.0,
    "BTFD": 4.0,
    "FD": 4.0,
    "diamond hands": 0.0,
    "paper hands": 0.0,
    "DD": 4.0,
    "GUH": -4.0,
    "pump": 4.0,
    "dump": -4.0,
    "gem stone": 4.0, # emoji
    "rocket": 4.0, # emoji
    "andromeda": 0.0,
    "to the moon": 4.0,
    "stonks": -4.0,
    "tendies": 4.0,
    "buy": 4.0,
    "sell": -4.0,
    "hold": 4.0,
    "short": 4.0,
    "long": 4.0,
    "overvalued": -4.0,
    "undervalued": 4.0,
    "calls": 4.0,
    "call": 4.0,
    "puts": -4.0,
    "put": -4.0,
}

sid = SentimentIntensityAnalyzer()
sid.lexicon.update(wsb_lingo)

# Test
print(sid.polarity_scores('🚀'))
print(sid.polarity_scores('😄'))

The output is given below:

{'neg': 0.0, 'neu': 0.0, 'pos': 0.0, 'compound': 0.0}
{'neg': 0.0, 'neu': 0.0, 'pos': 0.0, 'compound': 0.0}

How is it possible that it's unable to give any sentiment for emojis (e.g., due to Jupyter Notebook)? Am I forgetting something here? All libraries are up-to-date.

Upvotes: 1

Views: 378

Answers (1)

Rafael-WO
Rafael-WO

Reputation: 1630

If I use vaderSentiment instead of nltk.sentiment.vader it works for me

from vaderSentiment.vaderSentiment import SentimentIntensityAnalyzer

new = { "rocket": 4.0 }
sia = SentimentIntensityAnalyzer()
sia.polarity_scores('🚀')
# Outputs: {'neg': 0.0, 'neu': 1.0, 'pos': 0.0, 'compound': 0.0}

sia.lexicon.update(new)
sia.polarity_scores('🚀')
# Outputs: {'neg': 0.0, 'neu': 0.0, 'pos': 1.0, 'compound': 0.7184}

See also this issue

Upvotes: 1

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