Expert Systems
An AI-Based Methodology for Factory Design
This article provides a discussion of factory design and an artificial intelligence (AI) approach to this problem. Major issues covered include knowledge acquisition and representation, design methodology, system architecture, and communication. The facilities design expert systems (FADES developed by the author is presented and described to illustrate issues in factory design.
Online, Artificial Intelligence-Based Turbine Generator Diagnostics
The development of an online turbine generator diagnostic system is described from conception to initial field verification. The system is composed of a data center located in the power plant that collects data from online measurement devices and communicates these data to a centralized diagnostic facility in Orlando, Florida, where the actual diagnosis is done. The resulting diagnosis and recommended actions are transmitted to the power plant where they are displayed to the operator by the data center. The market-place need, initial approaches to the product, system field verification are described. The artificial intelligence (AI) diagnostic program has been diagnosing seven large utility generators since July 1984 and has correctly diagnosed a significant number of generator and instrumentation problems. Issues such as a centralized approach, rule base quality control, and the range of resources needed for a successful product are discussed.
Editorial
Engelmore, Robert S., Fox, Mark S.
EDITORIALS This Fall issue marks the first time we have devoted the AI Figure 1 summarizes the results of a survey I ran in 1985. The idea originated a couple of depicts the number of AI based systems in the various stages years ago, and I'm pleased to see the actual implementation. of research, development, field service and production use. Mark Fox, Special Editor for this issue, is to be congratulated It is my guess that the survey represents about 15% of the for a fine job of selecting some of the best authorities in systems currently under development. The incursion of AI the field and working with them to produce an excellent survey into the manufacturing world has reached the point that discussions of the current state of the art in AI for manufacturing. The quality of all the articles was so high that we didn't want to exclude any of them.
PIES: An Engineer's Do-It-Yourself Knowledge System for Interpretation of Parametric Test Data
Pan, Jeff Yung-Choa, Tenenbaum, Jay M.
The Parametric Interpretation Expert System (PIES) is a knowledge system for interpreting the parametric test data collected at the end of complex semiconductor fabrication processes. The system transforms hundreds of measurements into a concise statement of all the overall health of the process and the nature and probable cause of any anomalies. A key feature of PIES is the structure of the knowledge base, which reflects the way fabrication engineers reason causally about semiconductor failures. This structure permits fabrication engineers to do their own knowledge engineering, to build the knowledge base, and then to maintain it to reflect process modifications and operating experience. The approach appears applicable to other process control and diagnosis tasks.
Letters to the Editor
Leighninger, Marcia, Gibbons, Hugh, Friedland, Peter, Ensanian, Minas, Firschein, Oscar
Our development efforts involve small multidisciplinary KLA Instruments Corporation is looking for bright, dedicated teams with backgrounds in CS, EE, Math, Mechanical professionals to meethe challenge of developing Engineering and Physics, oriented to building leading edge knowledge-based systems for machine successful commercial products. You will have the control. We're using existing Al technology to actually opportunity to work on entire life cycle development get new KLA products out the door. If you have experience from idea to first shippable products.
Artificial Intelligence Research and Applications at the NASA Johnson Space Center, Part Two
This is the second part of a two-part article describing AI work at the NASA Johnson Space Center (JSC). Research and applications work in AI is being conducted by several groups at JSC. These are primarily independent groups that interact with each other on an informal basis. In the Research and Engineering Directorate, these groups include (1) the Artificial Intelligence and Information Sciences Office, (2) the Simulation and Avionics Integration Division, (3) the Avionics Systems Division, and (4) the Tracking and Communications Division. In the Space Operations Directorate, these groups include (1) the Mission Planning and Analysis Division (MPAD) - Technology Development and Applications Branch, (2) the Spacecraft Software Division, and (3) the Systems Division - Systems Support Section. This second part of the article describes the AI work in the Space Operations Directorate. The first part of the article, published in the last week of AI Magazine, (7:1, Summer 1986) described the AI work in the Research and Engineering Directorate.
Research in Artificial Intelligence at the University of Pennsylvania
This report describes recent and continuing research in artificial intelligence and related fields being conducted at the University of Pennsylvania. Although AI research takes place primarily in the Department of Computer and Information Science ( in School of Engineering and Applied Science), many aspects of this research are preformed in collaboration with other engineering departments as well as other schools at the University, such as the College of Arts and Sciences, the School of Medicine, and Wharton School.
CRSL: A Language for classificatory Problem Solving and Uncertainty Handling
In this article, we present a programming language for expressing classificatory problem solvers. CSRL (Conceptual Structures Representation Language) provides structures for representing classification trees, for navigating within those trees, and for encoding uncertainly judgments about the presence of hypotheses. We discuss the motivations, theory, and assumptions that underlie CRSL. Also, some expert systems constructed with CSRL are briefly described.
From Guidon to Neomycin and Heracles in Twenty Short Lessons
I review the research leading from the GUIDON rule-based tutoring system, including the reconfiguration of MYCIN into NEOMYCIN and NEOMYCIN's generalization in the heuristic classification shell, HERACLES. The presentation is organized chronologically around pictures and dialogues that represent conceptual turning points and crystallize the basic ideas. My purpose is to collect the important results in one place, so they can be easily grasped. In the conclusion, I make some observations about our research methodology.
Letter to the Editor
One to organize the construction teams. One to hack the planning system. How many AI people does it take to change a lightbulb? One to get Westinghouse to sponsor the research. One to indicate about how the robot mimics human motor A. At least 55: The knowledge engineering group (6): One to define the goal state.