MSIMS@RUTGERS.ARPA (04/19/84)
From: Michael Sims <MSIMS@RUTGERS.ARPA> [Forwarded from the Rutgers bboard by Laws@SRI-AI.] Learning Design Synthesis Expertise by Harmonizing Behaviors with Specifications Speaker: Masanobu Watanabe <Watanabe@Rutgers.Arpa> NEC Corporation, Tokyo, Japan Visiting Researcher, Rutgers University Series: Machine Learning Brown Bag Seminar Date: Wednesday, April 25, 1984, 12:00-1:30 Location: Hill Center, Room 254 VEXED is an expert system which supports interactive circuit design. VEXED provides suggestions regarding alternative implementations of circuit modules, as well as warnings regarding conflicting constraints. The interactions between a human designer and the system give opportunities for the system to learn expertise in design synthesis by monitoring the human designer's response to advice offered by the system. From this point of view, there are two interesting cases. One occurs when the designer ignores the advice of the system. Another occurs when the system cannot provide any advice but the human designer can continue his own design. The system has to learn as many things as possible by analyzing a single precious example, because it is difficult for the system to obtain many examples from which to form a particular concept. The problem space in the module decomposition process can be viewed as one with both states consisting of a set of modules and operators, which will be called implementation rules. This talk discusses the implementation rule acquisition task which is intended to formulate an implementation rule at an appropriate level of generality by monitoring a designer's circuit implementation. This task is to learn implementation rules (a kind of operator, but not quite like LEX's operators), while LEX's task is to learn heuristics which serve to guide useful operators.