David Jensen is Associate Professor of Computer Science and Director of the Knowledge Discovery Laboratory at the University of Massachusetts Amherst. His current research focuses on causal discovery in relational data, computational social network analysis, fraud detection, and privacy. He serves on the Executive Committee of the ACM Special Interest Group on Knowledge Discovery and Data Mining and on the program committees of the International Conference on Machine Learning and the International Conference on Knowledge Discovery and Data Mining. He is an associate editor of the ACM Transactions on Knowledge Discovery from Data. He serves on DARPA's Information Science and Technology (ISAT) Group. He recently served on a National Research Council panel assessing the research program of the National Institutes of Justice. From 1991 to 1995, he served as an analyst with the Office of Technology Assessment, an agency of the United States Congress. He received his doctorate from Washington University in St. Louis in 1992.