Mark is a Professor of Computer Science at the University of Auckland and the Director of the Centre for e-Research, a group that helps researchers tackle challenging computational research. Prior to his current roles, he was the Associate Director of the GeoVISTA Center at Pennsylvania State University for a period of nine years. Mark has an extensive and varied range of research interests including most aspects of geographic information science, geo-visualization, remote sensing, spatial data structures and algorithms, cyber-infrastructure, knowledge representation, and discovery science. More about Mark.