Cobb%MIT-OZ@MIT-MC.ARPA (04/12/84)
[Forwarded from the MIT bboard by SASW@MIT-MC.] SEMINAR Kenneth D. Forbus April 17 - 4:00PM NE43 - 8th floor Playroom Title: QUALITATIVE PROCESS THEORY Objects move, collide, flow, bend, heat up, cool down, stretch, break, and boil. These and other things that happen to cause changes in objects over time are intuitively characterized as processes. To understand common sense physical reasoning and make programs that interact with the physical world as well as people do we must understand qualitative reasoning about processes and their effects. Qualitative Process theory defines a simple notion of physical process that appears useful as a language in which to write dynamical theories. Reasoning about processes also motivates a new qualitative representation for quantity in terms of inequalities, called the Quantity Space. This talk will describe the basic concepts of Qualitative Process theory, two different kinds of reasoning that can be performed with them, and its implications for causal reasoning. Several examples will be presented to illustrate the utility of the theory, including figuring out that a boiler can blow up and how different theories of motion may be encoded. Refreshments at 3:45PM Host: Professor Patrick H. Winston