摘要:

Abstract:Fossil is an expert system for Palaeontology, written in Prolog. It consists of a knowledge base and three interfaces: a collector's ‘query’ interface; an expert's ‘update’ interface and a student's ‘review’ interface. As such, it covers the major uses of a knowledge base in palaeontology. The underlying model of expert system use and its supporting tools are described. This view is an alternative to that provioded by expert system shells of the Apes type. Such an approach has proved useful in Palaeontology and is likely to be applicable to other areas where the knowledge is arranged taxonomically. The use of Prolog as an implementation tool is briefl

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1986.tb00197.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

Abstract:Evaluation of expert systems is an important step in the knowledge engineering process. In recent years, emphasis has been placed on knowledge acquisition, knowledge representation, and inferencing mechanisms. However, evaluation, and to a lesser extent, validation, have been slightly overlooked. This paper addresses some of the evaluation techniques that have been used for measuring information systems effectiveness and expert systems effectiveness. Specific attention is focused on the Analytic Hierarchy Process and Expert Choice. The evaluation results of an expert system prototype, called ‘Read’, are discussed via the use of the Analytic Hierarchy Process and Expert Cho

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1986.tb00198.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

Abstract:The use of knowledge engineering in diagnostic systems, is aimed primarily at exploiting procedural knowledge (about: systems operations, configuration, observations, calibration, maintenance), in connection with failure detection and test generation tasks. Next, the goal is to devise knowledge representation schemes whereby the failure events can be analyzed by merging highly diverse sources of information: analog/digital signals, logical variables and test outcomes, text from verbal reports, and inspection images. The final goal is to ease the operator workload when interfacing with the system under test and/or the test equipment, or with reliability assessment software packages. The paper will present key notions, methods and tools from: knowledge representation, inference procedures, pattern analysis. This will be illustrated by reference to a number of current and potential applications for e.g.: electronics failure detection, control systems testing, analysis of intermittent failures, false alarm reduction, test generation, maintenance trainers.

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1986.tb00199.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1986.tb00200.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1986.tb00201.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0266-4720    

DOI:10.1111/j.1468-0394.1986.tb00202.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY