{"id":"W3171261489","doi":"10.2196/24435","title":"COVID-19 Vaccine–Related Discussion on Twitter: Topic Modeling and Sentiment Analysis","year":2021,"lang":"en","type":"article","venue":"Journal of Medical Internet Research","topic":"Vaccine Coverage and Hesitancy","field":"Social Sciences","cited_by":360,"is_retracted":false,"has_abstract":true,"ca_institutions":"","funders":"National Cancer Institute","keywords":"Social media; Vaccination; Cornerstone; Pandemic; Topic model; Public health; Herd immunity; Coronavirus disease 2019 (COVID-19); Medicine; Psychology; Computer science; World Wide Web; Artificial intelligence; Immunology; Infectious disease (medical specialty); History","routes":{"ca_aff":false,"ca_fund":false,"ca_venue":false,"about_ca":true,"invisible_to_affiliation_only":true},"retraction":null,"screen":null,"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.09121144644849306,"score_gpt":0.4613156341040951,"score_spread":0.370104187655602,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}