Computational Intelligence-Based Model for Exploring Individual Perception on SARS-CoV-2 Vaccine in Saudi Arabia

Table 2

Summary of previous studies related to SARS-CoV-2 vaccination and supervised sentiment analysis.

Ref	Dataset	No. of tweets	Language	Feature extraction	Technique	Accuracy
[18]	Tweets collected from Twitter	40,000	English	—	LR	0.63
[19]	Kaggle (tweets)	125,906	English	Word embedding	Bi-LSTM	0.98
[22]	Tweets collected from Twitter	6,000	English	—	NB	—
[23]	Tweets collected from Twitter	803,278	Persian	—	CNN-LSTM	—
[24]	Tweets collected from Twitter	10,000	English	—	KNN	—