A major problem that confronts developers of knowledge-based vision systems is how the information i the knowledge base (both objectspecific knowledge and the control strategies for applying the knowledge) is acquired. Hand construction of knowledge bases is an onerous, time-consumlng and errorful process, and is inadequate for systems requiring more than a few object models, especially ifthe d...

Brief Summary TEIRESIAS is a program designed to function as an assistant to a domain expert in the task of building large knowledge bases. TEIRESIAS facilitates the interactive transfer of knowledge from a human expert to the knowledge base of a performance program (MYCIN), in a high level dialog conducted in a restricted subset of natural language. By using this high level dialog, the expert ...

This paper demonstrates the enhancement in ;maintainability made possible by introducing metal-level control architectures to production systems. We msess t h e amount of eflort expended in upgrading a rule base through the range referred to b y maintenance staff f o r d e base upgrading. The rule base of an Intelligent C A I System currently in operation that employs the raeta-level control ar...

This study proposes two fuzzy logic controllers (FLCs) for operating control force of piezoelectric friction dampers used for seismic protection of base-isolated buildings against various types of earthquake excitations. The first controller employs a hierarchic control strategy in which a higher-level supervisory controller operates a single sub-level FLC by modifying its input normalization f...

The specification of the conceptual schema for a data base application is divided into levels. It is argued that, at the highest level, a direct description of the characteristics of the information kept in a data base and of the constraints governing their existence and transformation of its components characterizes what a particular data base is in a more fundamental way (hence at a higher an...

This paper experimentally investigates the effectiveness of regularly-placed bit-slice layout and transistor-level optimization to datapath circuit performance. We focus on cell-base design flows with transistorlevel circuit optimization. We examine the effectiveness through design experiments of 32-bit carry select adder and 16-bit tree-style multiplier in a 0.35μm technology. From the experim...

Double-Electrode Gas Metal Arc Welding, referred to as DE-GMAW, is a novel process which decouples the melting current into base metal current and bypass current by adding a bypass torch to a conventional GMAW system to establish a bypass arc. This makes it possible to increase the melting current while the base metal current still be controlled at a desired level. Experiments have been done to...