EMEDIA EXPERT SYSTEMS

Transcription

1 EMEDIA EXPERT SYSTEMS Editors R. Rada University of Liverpool К. Tochtermann University of Dortmund Vfo World Scientific Sinaapore Singapore New Jersey London Hong Kong

2 IX CONTENTS PARTI INTRODUCTION TO EXPERTMEDIA CHAPTER 1 - INTRODUCTION TO EXPERTMEDIA 1. Introduction 3 2. Hypertext Hypertext Architecture Composition Mechanisms Searching Versus Browsing Navigational Support User Interfaces Multimedia Media Time Hypermedia Links and Timing An Authoring System ExpertMedia Links Distributed Expert Principles Conclusion References 24 CHAPTER 2 - EXPERTMEDIA AND INFORMATION SYSTEMS 1. Introduction Information Systems Database Systems Information Retrieval Systems Knowledge-Based Systems Requirements for ExpertMedia Systems 32

3 X 3. Formal Basis for Underlying Structures of ExpertMedia Nodes Links Anchors ExpertMedia Documents Views Operations Filter operations Path operations Condition operations Inheritance Hierarchy Class NODES Class LINKS Class ANCHORS Conclusion Summary Future Research Directions References 54 Appendix: VDM Quick-Reference 58 CHAPTER 3 - ARTIFICIAL INTELLIGENCE AND HYPERMEDIA 1. Introduction Knowledge Acquisition and Hypermedia Combining Hypermedia and Knowledge Acquisition Knowledge Acquisition with CONCORDE Model Construction in MIKE Further Advantages of Hypermedia-Based Knowledge Acquisition Knowledge Representation and Hypermedia What has Knowledge Representation to do with Hypermedia? MacWeb Konstanzer Hypertext System (KHS) The Kaindl and Snaprud Approach Conclusion 77

4 xi 4. Enhancing Hypermedia with Knowledge-Based Methods Strategics for Enhancing Hypermedia Support of Essential Hypermedia Tasks Limited adaptive approaches Full adaptive approaches Supporting diverse hypermedia tasks Support of Special Applications Conclusions Conclusion References 84 PART II EXPERTMEDIA AND HEALTH CARE APPLICATIONS CHAPTER 4 - EXPERTMEDIA AND HEALTH CARE APPLICATIONS 1. Introduction Electronic Medical Records Telemedicine Memorial University's Teleconference System Winnsboro Rural Telemedicine Radiology Education Simulation Pathology Education Electronic Publishing Available Information Prototype of a Medical CD Summary References 105

5 XII CHAPTER 5 - EXPERTMEDIA IN AMBULATORY CLINICS 1. Introduction Work Practice in Primary Health Care Computers Systems in PHC Studies of Computer Use in PHC Requirements on Expertmedia Support in PHC Basic Non-Functional Requirements Basic Functional Requirements Prototype Implementations Expertmedia Support for Individual Practitioners: Gösta's Book Expertmedia Support for Clinical Protocols: Dialogjournalen Expertmedia Group Support: KnowledgeNet and CoDesk Discussion Acknowledgements References 116 PART HI EXPERTMEDIA AND KNOWLEDGE-BASED METHODS CHAPTER 6 - INTEGRATING EXPERT SYSTEMS AND MULTIMEDIA: THE PROTOCOL MULTIMEDIA EXPERT SYSTEM 1. Introduction The Need for Hybrid Expert System-Multimedia Systems The Protocol Multimedia Expert System (PMES): A Brief Description Protocol Multimedia Expert System (PMES): Development Problem Identification Knowledge Acquisition Knowledge Representation Knowledge Encoding Testing and Evaluation Future Research References 133

6 xiii CHAPTER 7 - KNOWLEDGE-BASED INDEXING AND RETRIEVAL OF HYPERMEDIA INFORMATION 1. Introduction and Background Indexing and Retrieval of Hypermedia Information Hypermedia without Index-Based Retrieval Hypermedia with Index-Based Retrieval Knowledge-Based Indexing of Hypermedia Information Index Structures Thesaurus Faceted thesaurus Concept lattice Hyperindices Semantic hyperindices Inference network Semantic network Index Acquisition Principles Approaches Knowledge-Based Retrieval of Hypermedia Information Retrieval Mechanisms Retrieval by query Retrieval by navigation Query by navigation Retrieval Visualization Principles Approaches Conclusions and Future Research Bibliography References 163

7 xiv CHAPTER 8 - REGULARITY, DOCUMENT GENERATION, AND CYC 1. Introduction Hierarchical Semantic Nets and Regularity Example of Regularity Definitions Properties Generating Documents from Hypertext Hypertext A Model of Documents The Generation of Argumentative Documents Cyc Classification of Inference Patterns Applications of Cyc A User's View of Cyc Constants: A Minimality Principle Navigating in Cyc Formulation of questions Control of inference The semantics of slots Regularity in Cyc Extended Regularity Regularity of Specialized Inference Patterns Regularity of Relations Between Temporal Sub-Abstractions Rules that Express Irregularities Summary and Conclusion References 204 INDEX 207 LIST OF AUTHORS 211