Table of Contents

Instructions for online access

Cover

Title Page

Copyright

Preface

About the Authors

Chapter 1: What Is the Semantic Web?

WHAT IS A WEB?

SMART WEB, DUMB WEB

SEMANTIC DATA

SUMMARY

Chapter 2: Semantic Modeling

MODELING FOR HUMAN COMMUNICATION

EXPLANATION AND PREDICTION

SUMMARY

Chapter 3: RDF—The Basis of the Semantic Web

DISTRIBUTING DATA ACROSS THE WEB

MERGING DATA FROM MULTIPLE SOURCES

NAMESPACES, URIs, AND IDENTITY

IDENTIFIERS IN THE RDF NAMESPACE

CHALLENGE: RDF AND TABULAR DATA

HIGHER-ORDER RELATIONSHIPS

ALTERNATIVES FOR SERIALIZATION

BLANK NODES

SUMMARY

Chapter 4: Semantic Web Application Architecture

RDF PARSER/SERIALIZER

RDF STORE

APPLICATION CODE

DATA FEDERATION

SUMMARY

Chapter 5: RDF and Inferencing

INFERENCE IN THE SEMANTIC WEB

WHERE ARE THE SMARTS?

SUMMARY

Chapter 6: RDF Schema

SCHEMA LANGUAGES AND THEIR FUNCTIONS

WHAT DOES IT MEAN? SEMANTICS AS INFERENCE

THE RDF SCHEMA LANGUAGE

RDFS MODELING COMBINATIONS AND PATTERNS

CHALLENGES

MODELING WITH DOMAINS AND RANGES

NONMODELING PROPERTIES IN RDFS

SUMMARY

Chapter 7: RDFS-Plus

INVERSE

SYMMETRIC PROPERTIES

TRANSITIVITY

EQUIVALENCE

COMPUTING SAMENESS—FUNCTIONAL PROPERTIES

A FEW MORE CONSTRUCTS

SUMMARY

Chapter 8: Using RDFS-Plus in the Wild

SKOS

FOAF

SUMMARY

Chapter 9: Basic OWL

RESTRICTIONS

CHALLENGE PROBLEMS

RELATIONSHIP TRANSFER IN FOAF

ALTERNATIVE DESCRIPTIONS OF RESTRICTIONS

SUMMARY

Chapter 10: Counting and Sets in OWL

UNIONS AND INTERSECTIONS

DIFFERENTIATING MULTIPLE INDIVIDUALS

CARDINALITY

SET COMPLEMENT

DISJOINT SETS

PREREQUISITES REVISITED

CONTRADICTIONS

UNSATISFIABLE CLASSES

INFERRING CLASS RELATIONSHIPS

REASONING WITH INDIVIDUALS AND WITH CLASSES

SUMMARY

Chapter 11: Using OWL in the Wild

THE FEDERAL ENTERPRISE ARCHITECTURE REFERENCE MODEL ONTOLOGY

REFERENCE MODELS AND COMPOSABILITY

RESOLVING AMBIGUITY IN THE MODEL: SETS VERSUS INDIVIDUALS

CONSTRAINTS BETWEEN MODELS

OWL AND COMPOSITION

ADVANTAGES OF THE MODELING APPROACH

THE NATIONAL CANCER INSTITUTE ONTOLOGY

REQUIREMENTS OF THE NCI ONTOLOGY

UPPER-LEVEL CLASSES

DESCRIBING CLASSES IN THE NCI ONTOLOGY

INSTANCE-LEVEL INFERENCING IN THE NCI ONTOLOGY

SUMMARY

Chapter 12: Good and Bad Modeling Practices

GETTING STARTED

MODELING FOR REUSE

COMMON MODELING ERRORS

SUMMARY

Chapter 13: OWL Levels and Logic

OWL DIALECTS AND MODELING PHILOSOPHY

OWL FULL VERSUS OWL DL

OWL LITE

OTHER SUBSETS OF OWL

BEYOND OWL 1.0

SUMMARY

Chapter 14: Conclusions

Frequently Asked Question

Further Reading

Index

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