Carlos Scheidegger 
			
		
			Date: June 12, 2012		
			
		
			Location: Midtown		
				
			Carlos Scheidegger joined AT&T in September 2009, after finishing his PhD at the SCI Institute and the School of Computing at the University of Utah. In graduate school, he worked in scientific visualization and geometric processing, with applications in mesh generation and point-based surface representations. During that period, he was one of the main designers and developers of VisTrails, a visualization system whose goal is to provide scientists with an infrastructure to help develop effective visualizations. VisTrails emphasizes the importance of process provenance: it transparently keeps track of the visualizations as they are created.