Journal
COMPUTERS IN HUMAN BEHAVIOR
Volume 134, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chb.2022.107320
Keywords
COVID-19 vaccine; Weibo; Attitude; Information popularity; Content feature; Contextual feature
Funding
- National Natural Science Foundation of China [71661167007, 71420107026]
- Na-tional Key Research and Development Program of China [2018YFC0806904-03]
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This research developed a framework to compare the popularity of contradictory information on social media and explored the factors that influenced its popularity. By analyzing data and visualizing the relationship between features, the study found differences in various aspects among information expressing different attitudes. Suggestions for adjusting information organization strategies to reduce vaccine hesitancy were also proposed.
To eliminate the impact of contradictory information on vaccine hesitancy on social media, this research developed a framework to compare the popularity of information expressing contradictory attitudes towards COVID-19 vaccine or vaccination, mine the similarities and differences among contradictory information's characteristics, and determine which factors influenced the popularity mostly. We called Sina Weibo API to collect data. Firstly, to extract multi-dimensional features from original tweets and quantify their popularity, content analysis, sentiment computing and k-medoids clustering were used. Statistical analysis showed that anti-vaccine tweets were more popular than pro-vaccine tweets, but not significant. Then, by visualizing the features' centrality and clustering in information-feature networks, we found that there were differences in text charac-teristics, information display dimension, topic, sentiment, readability, posters' characteristics of the original tweets expressing different attitudes. Finally, we employed regression models and SHapley Additive exPlanations to explore and explain the relationship between tweets' popularity and content and contextual features. Sug-gestions for adjusting the organizational strategy of contradictory information to control its popularity from different dimensions, such as poster's influence, activity and identity, tweets' topic, sentiment, readability were proposed, to reduce vaccine hesitancy.
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