R.G.MILES XHP Consulting Ltd, Gloucester. This book is one of two volumes containing papers for presentation at the British Computer Society Expert Systems 98 conference. This is the annual conference of th the BCS Specialist Group on Expert Systems and is in its 18 year. During its lifetime it has established itself as the premier Expert Systems conference in the UK. The conference is attracting an increasing number of papers world-wide and this year in excess of 70% were from research groups outside the UK. This volume includes all papers accepted for the Technical Stream of Expert Systems 98 and presented at the conference in December 1998. The papers within this stream present innovative, new research work. The companion volume, Applications and Innovations in Expert Systems VI, includes all papers accepted for the application stream of the conference. This stream has become the premier European conference on applications of Expert Systems. The papers accepted for presentation within the Technical Stream cover a broad range of research within Expert Systems and fit into four broad categories: ontological frameworks, knowledge base development, classifiers and neuro-fuzzy systems. The award for best Technical paper has been made to David McSherry, from the University of Ulster, for his paper entitled "Strategic Induction of Decision Trees".

Zusammenfassung
The papers accepted for presentation within the Technical Stream cover a broad range of research within Expert Systems and fit into four broad categories: ontological frameworks, knowledge base development, classifiers and neuro-fuzzy systems.

Inhalt
Technical Keynote Address.- 3 Lessons of Genetic Algorithms for Computational Innovation.- Best Technical Paper.- Strategic Induction of Decision Trees.- Session 1: Ontological Frameworks.- Exploiting Knowledge Ontology for Managing Parallel Workflow Systems.- A Generic Ontology for Spatial Reasoning.- Knowledge Modelling for a Generic Refinement Framework.- Session 2: Knowledge Base Development.- CG-SQL: A Front-End Language for Conceptual Graph Knowledge Bases.- Constraint-Based Knowledge Acquisition and Verification for Planning.- Coping with Poorly Understood Domains. The Example of Internet Trust.- Session 3: Classifiers.- Pruning Boosted Classifiers with a Real Valued Genetic Algorithm.- On Rule Interestingness Measures.- MVC A Preprocessing Method to deal with Missing Values.- Session 4: Neuro-Fuzzy Approaches.- Alarm Analysis with Fuzzy Logic and Multilevel Flow Models.- Learning Full Pitch Variation Patterns with Neural Nets.- A Neural Network Based Approach to Objective Voice Quality Assessment.- Review Paper.- Case-Based Reasoning is a Methodology not a Technology.- Author Index.