Cristian Huepe - Adjunct Professor\, Engi
neering Sciences &\; Applied Mathematics (ESAM)\, Northwestern Universi
ty\, and External Faculty\, Northwestern Institute on Complex Systems (NIC
inions and interactions regarding Covid-19 vaccinations: a Complex Systems
Digital social networks can sign ificantly affect Covid-19 vaccination campaigns\, if well-connected conver sations emerge that discourage immunization. Although the information in t hese platforms could help understand and manage the communities and narrat ives that influence vaccination\, it has rarely been used to help evaluate or guide public health policy.
I wi ll present an interdisciplinary study in which we analyzed all Chilean twe ets related to the Covid-19 vaccines and vaccination process produced duri ng a period of 6 months\, to examine quantitatively and qualitatively the structure and dynamics of their opinions and interactions in a society tha t achieved high levels of immunization while experiencing substantial soci opolitical conflict. We trained a machine learning algorithm to score the tweeting accounts from the most pro-vaccine to the most anti-vaccine. We s how that four categories with distinct tweeting practices and connectivity naturally emerge: pro-vaccine activists\, anti-vaccine activists\, and mo derates that promote or inhibit vaccination in discussions\, which also pl ay a key role. Accounts disfavoring vaccination tend to appear in the peri phery of the interaction network\, consistent with Chile’s high immuniza tion levels\, but are more active in addressing those favoring vaccination than vice-versa\, which reveals a potential problem in communication poli cy. Our results highlight the importance of social networks and online int erventions for successful immunization campaigns.
CHuepeLabs develops research in complex syst ems\, nonequilibrium physical dynamics and quantitative social sciences. C urrent efforts focus on collective motion\, active matter\, complex networ ks\, modular-hierarchical evolutionary structures\, and opinion formation.
CHuepeLabs is a global research team centered on the work of Cristián Huepe in Chicago and at NICO (Northwestern Institute on C omplex Systems) &\; ESAM (Applied Math Dept.) at Northwestern Universit y (USA). CHuepeLabs also include collaborative t eams at the School of Systems Science of Beijing Normal University (China) \, the Middle East Technical University ODTÜ/METU (Turkey)\, and the Soci al Listening Lab SoL-UC (Chile).
In person: Chambers Hall\, 600 Foster St
reet\, Lower Level
Remote option: https://northw estern.zoom.us/j/92818942739
Wednesdays@NICO is a vibrant weekly seminar series focusing broadly on the topics of complex systems and data science. It brings together attendees ranging from graduate students to se nior faculty who span all of the schools across Northwestern\, from applie d math to sociology to biology and every discipline in-between. Please vis it: https://bit.ly/WedatNICO for in formation on future speakers.