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Dr Steven Roberts received his PhD in Systems Design Engineering from the University of Waterloo in 2003. His doctoral work entailed the development of both a spatial data meta-model approach and prototype Evolutionary Multi-objective Optimization application using real-world GIS data sets and a Non-dominated Sorting Genetic Algorithm to solve a spatial multi-objective combinatorial optimization problem.Steve’s research interests centre on the design and development Geographic Information Science based tools for use in understanding landscape structure and in decision support applications for environmental land use planning. Specific fields of interest include: spatial data models and data structures, combinatorial optimization, genetic algorithms (Evolutionary Multi-objective Optimization), applied graph, matroid and category theory, landscape ecology, and parallel and shared memory computing.