Before revision:  Next, we introduce a bias alleviation mechanism  to mitigate the effect of bias in training set during the fine-tuning of our pre-trained BERT-based model for hate speech detection .
After revision:  Next, we introduce a bias alleviation mechanism in hate speech detection task to mitigate the effect of bias in training set during the fine-tuning of our pre-trained BERT-based model for hate speech detection .