Lee Fiorio, Geography Ph.D. student and researcher in the Center for Studies in Demography and Ecology (CSDE), recently won first place in CSDE’s Demography Student Poster Session and Lightning Talk. The competition’s participants were the current CSDE-affiliated graduate students from sociology, social work, statistics, and geography. Fiorio’s work, “Regularities in Mobility Patterns at Different Time Scales: Evidence from ‘Digital Trace Data’ in the U.S. and Senegal,” develops a method for inferring migration patterns based on geotagged data. The data analyzed in his research includes 561 million cell phone records, 570 million geo-tagged tweets, and 6.4 million Gowalla check-ins. Fiorio will continue this work and present it at the Population Association of America Conference in Denver in April, 2018. See a high-resolution version of the poster here.