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Sentiment Analysis of Social Media on Childhood Vaccination: Development of an Ontology
Thus, data on childhood vaccination can be obtained, and vaccination issues and sentiments can be identified. Vaccination issues in this study were defined as opinions, perceptions, concerns, and worries about vaccines and vaccination posted on social media. Sentiments in this study were defined as feeling and emotion on childhood vaccination posted on social media.
Social media posts are unstructured data composed mostly of text.
J Med Internet Res 2019;21(6):e13456
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