I'm going to build a model for twitter sentiment on Financial market using transformers. I have access to StockTwits data for training, which only contains positive and negative sentiments. However, I would like to consider 3 classes, positive, negative and neutral. My question is it a safe way to use 2 class data for training a model with 3 classes?
sentiment analysis-training for 3 classes sentiment using 2 classes dataset
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