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....
