FAWCETT@RED.RUTGERS.EDU (Tom Fawcett) (11/09/86)
On Tuesday November 25th, Henry Lieberman of MIT will speak on "Programming Descriptive Analogies by Example". The abstract follows. (The exact time will be decided later - it will probably be 10 AM in Hill-250.) Programming Descriptive Analogies By Example Henry Lieberman Artificial Intelligence Laboratory Massachusetts Institute of Technology This paper describes a system for "programming by analogy", called Likewise. Using this new approach to interactive knowledge acquisition, a programmer presents specific examples and points out which aspects of the examples are "slippable" to more general situations. The system constructs a general rule which can then be applied to "analogous" examples. Given a new example, the system can then construct an analogy with the old example by trying to instantiate new descriptions which correspond to the descriptions constructed for the first example. If a new example doesn't fit an old concept exactly, a concept can be generalized or specialized incrementally to make the analogy go through. Midway between "programming by example" and inductive inference programs, Likewise attacks the more modest goal of being able to communicate to the computer an analogy which is already understood by a person. Its operation on a typical concept learning task is presented in detail.