2005-now: RMIT University, School of Computer Science and IT 2005-2014: NICTA (National ICT Australia), Victoria Research Lab, Senior Researcher 2002-2005: Stanford University, Center for the Study of Language and Information, Senior Researcher 2000-2002: Verticalnet Inc. (California), Advanced Products and Strategy Group, Senior Scientist and Lead Engineer 1994-1999: RMIT University, Deptartment of Computer Science, Lecturer 1991-1995: PhD, University of Edinburgh, Centre for Cognitive Science 1987-1990: Australian Artificial Intelligence Institute, Research Scientist Research interests: Spoken dialogue management and spoken language interfaces Text mining/analytics for Biomedical applications Autonomous agents and multi-agent teams Applications of logic, esp. non-standard logics Issues at the boundary of AI and Cognitive Science