Gilbert H. Castle

Gilbert Castle first became interested in artificial intelligence in the late 1980s. In the early 1990s he taught conference workshops on expert systems. During the 1990s he also developed an expert system for predicting which U.S. real estate markets offered the best investment potential. Mr. Castle’s career focus has been on Geographic Information Systems (GIS) in real estate since 1978, including serving several years as a multi-state Regional Director of the Roulac Group of Deloitte & Touche (the real estate consulting division of the Big Four accounting firm). Mr. Castle was the originator and editor of the book "GIS in Real Estate: Integrating, Analyzing and Presenting Locational Information" published by the Appraisal Institute, and taught the Appraisal Institute's continuing education seminar on GIS in appraisal to a dozen Appraisal Institute chapters around the nation. He was also the originator and editor of the 400-page book "Profiting from a Geographic Information System", the seminal text on GIS applications in the private sector. Mr. Castle has more than one hundred professional articles and conference presentations to his credit; for example, for several years he wrote the real estate column for "Business Geographics" magazine. Mr. Castle is a past president of the Urban and Regional Information Systems Association (URISA), North America's oldest and largest professional association for GIS practitioners. He has lectured at numerous universities nationwide, including the Massachusetts Institute of Technology, the University of Pennsylvania, Texas Tech University, Stanford University, and the University of California at Berkeley. He holds a Bachelor of Science degree in Economics, Cum Laude, from Harvard University, and a Master of City Planning degree from the University of Pennsylvania.