I am an associate professor in the Geomatics program at the University of Florida where I teach courses in GIS, Digital Mapping, Adjustment Computations, and Geodesy. In my research I specialize in Volunteered Geographic Information (VGI), bicycle and public transportation, wayfinding and navigation, and data quality. As part of my interdisciplinary research I work on analyzing the spread of invasive species in South-East Florida, including termites and tegus.
Together with my graduate students I have over the past years explored characteristics (e.g. data quality, user contribution patterns) of various VGI platforms, such as OpenStreetMap, Flickr, Panoramio, dronestagram, Mapillary, Instagram, Wikimapia, and Twitter. The fast changing field of VGI provides new challenges for analysis every day, which makes it one of my favorite research areas.