Ref.

Objectives

Topic modeling

[12]

Identify the main thematic areas of vaccine hesitancy

LDA

[14]

Characterizing vaccine discourse using comments

LDA, LIWC

[8]

Investigating COVID-19 vaccine-related discussions on social media such as Reddit

LDA

[11]

Analyzing the sentiment of tweets in Nigeria about COVID-19 vaccine

LDA

[26]

Examining public behaviour during different waves of COVID-19

LDA, GSDMM, BERT

[27]

Examine country-level variations in attitudes toward COVID-19 vaccine passports

LDA