Junchuan Fan R&D Associate Contact fanj@ornl.gov All Publications Towards POI-based large-scale land use modeling: spatial scale, semantic granularity, and geographic context... Understanding collective human movement dynamics during large-scale events using big geosocial data analytics... SONET++: A Knowledge Graph of Geographic Categories based on OSM Tag Representation Accelerated Assessment of Critical Infrastructure in Aiding Recovery Efforts During Natural and Human-made Disaster Conflation of Geospatial POI Data and Ground-level Imagery via Link Prediction on Joint Semantic Graph... MapSpace: POI-based Multi-Scale Global Land Use Modeling... Understanding the Drivers of Mobility during the COVID-19 Pandemic in Florida, USA Using a Machine Learning Approach... Incorporating space and time into random forest models for analyzing geospatial patterns of drug-related crime incidents in a... COVID-19 Joint Pandemic Modeling and Analysis Platform... Key Links ORCID Personal website Organizations National Security Sciences Directorate Geospatial Science and Human Security Division Human Dynamics Section