The Modeling of Uncertainty in Control Systems : Proceedings of the 1992 Santa Barbara Workshop This book is a collection of work arising from a NSF AFOSR sponsored workshop held at the University of California Santa Barbara 18 20th June 1992. Sixty nine researchers from nine countries participated. Twelve keynote essays give an overview of the field and speculate on future directions and nineteen technical papers delineate the state of the art in the field. This book serves both as in introduction to the topic and as a reference on the current technical problems and approaches