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?
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Please provide enough code so others can better understand or reproduce the problem. – Community Mar 30 '22 at 23:01
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Your model will not learn what neutral is. Maybe you want to look for zero-shot classification or label some samples by yourself. – cronoik Apr 01 '22 at 21:28