Emoji-only models for financial sentiment on StockTwits achieve F1 scores of approximately 0.75 with high efficiency, while specific emojis and pairs predict market trends at over 90 percent accuracy, though combined text models perform better.
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FinMoji: A Framework for Emoji-driven Sentiment Analysis in Financial Social Media
Emoji-only models for financial sentiment on StockTwits achieve F1 scores of approximately 0.75 with high efficiency, while specific emojis and pairs predict market trends at over 90 percent accuracy, though combined text models perform better.