Towards the Semantic Grid: Putting Knowledge to Work in Design Optimisation

Date

2003-06-28

Advisors

Journal Title

Journal ISSN

ISSN

Volume Title

Publisher

Technische Universität Graz

Type

Article

Peer reviewed

Yes

Abstract

Modern computational Problem Solving Environments (PSEs) become more and more complex and knowledge intensive in terms of their integrated toolsets, in particular for engineering design search and optimization. Whether these toolsets can be assembled effectively to produce satisfactory results depends heavily on using the best domain practice and following decisions made by skilled engineers in practical situations. In this paper, a knowledge based approach is used to acquire this knowledge from existing sources and model it in a maintainable fashion. Ontologies are used to develop the conceptualization of a knowledge base. In order to reuse this knowledge to provide guidance at knowledge intensive points, we propose a knowledge based advisor, which can give a context-aware critique to guide users through effective operations of building domain workflows. The concept of a state panel is proposed to collect system state information, which is then reasoned about together with various task models in the JESS (Java Expert System Shell) environment. Two reasoning strategies are designed for different advising styles. A multilayer and client-server style architecture is proposed to illustrate how this advisor can be deployed to make available its knowledge advising service to a real workflow construction PSE in a maintainable fashion. Throughout we use the example of these knowledge services in the context of design optimization in engineering.

Description

open access article

Keywords

JESS, XML, knowledge base, knowledge engineering, ontology, production rules, workflow planning

Citation

Tao, F., Chen, L., Shadbolt, N., Pound, G. and Cox, S. (2003) Towards the Semantic Grid: Putting Knowledge to Work in Design Optimisation. Journal of Universal Computer Science, 9(6), pp. 551-562.

Rights

Research Institute

Cyber Technology Institute (CTI)