Guest Speakers/Talks

  • 2022 Dec 06

    Geography Colloquium: Yilan Xu

    12:00pm to 1:00pm

    Location: 

    CGIS Knafel Building, room S050

    Speaker and Title

    Yilan Xu (University of Illinois), "Modeling the Social Media Information Network Across Space"

    Abstract

    This paper takes a data-driven approach to model how social media information diffuses over geographic space to form an information network. Using an innovative variance decomposition of the vector autoregression model (Diebold & Yilmaz, 2009, 2012, 2014) and Hurricane Ida as a case study, we construct a weighted and directed climate disaster information network on Twitter described by an information network adjacency matrix....

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