A Semantic Web Primer

by Antoniou, Grigoris; Van Harmelen, Frank

• ISBN13: 9780262012423
• ISBN10: 0262012421
• Edition: 2nd
• Format: Hardcover
• Copyright: 2008-03-31
• Publisher: Mit Pr

Summary

The development of the Semantic Web, with machine-readable content, has the potential to revolutionize the World Wide Web and its use. A Semantic Web Primerprovides an introduction and guide to this still emerging field, describing its key ideas, languages, and technologies. Suitable for use as a textbook or for self-study by professionals, it concentrates on undergraduate-level fundamental concepts and techniques that will enable readers to proceed with building applications on their own and includes exercises, project descriptions, and annotated references to relevant online materials. A Semantic Web Primerprovides a systematic treatment of the different languages (XML, RDF, OWL, and rules) and technologies (explicit metadata, ontologies, and logic and inference) that are central to Semantic Web development as well as such crucial related topics as ontology engineering and application scenarios. This substantially revised and updated second edition reflects recent developments in the field, covering new application areas and tools. The new material includes a discussion of such topics as SPARQL as the RDF query language; OWL DLP and its interesting practical and theoretical properties; the SWRL language (in the chapter on rules); OWL-S (on which the discussion of Web services is now based). The new final chapter considers the state of the art of the field today, captures ongoing discussions, and outlines the most challenging issues facing the Semantic Web in the future. Supplementary materials, including slides, online versions of many of the code fragments in the book, and links to further reading, can be found at www.semanticwebprimer.org.

Table of Contents

List of Figures
The Semantic Web Vision	p. 1
Today's Web	p. 1
From Today's Web to the Semantic Web: Examples	p. 3
Semantic Web Technologies	p. 8
A Layered Approach	p. 17
Book Overview	p. 21
Summary	p. 21
Suggested Reading	p. 22
Structured Web Documents: XML	p. 25
Introduction	p. 25
The XML Language	p. 29
Structuring	p. 33
Namespaces	p. 46
Addressing and Querying XML Documents	p. 47
Processing	p. 53
Summary	p. 59
Suggested Reading	p. 61
Exercises and Projects	p. 62
Describing Web Resources: RDF	p. 65
Introduction	p. 65
RDF: Basic Ideas	p. 67
RDF: XML-Based Syntax	p. 73
RDF Schema: Basic Ideas	p. 84
RDF Schema: The Language	p. 88
RDF and RDF Schema in RDF Schema	p. 94
An Axiomatic Semantics for RDF and RDF Schema	p. 97
A Direct Inference System for RDF and RDFS	p. 102
Querying in SPARQL	p. 103
Summary	p. 109
Suggested Reading	p. 109
Exercises and Projects	p. 111
Web Ontology Language: OWL	p. 113
Introduction	p. 113
OWL and RDF/RDFS	p. 114
Three Sublanguages of OWL	p. 117
Description of the OWL Language	p. 119
Layering of OWL	p. 131
Examples	p. 135
OWL in OWL	p. 144
Future Extensions	p. 150
Summary	p. 152
Suggested Reading	p. 152
Exercises and Projects	p. 154
Logic and Inference: Rules	p. 157
Introduction	p. 157
Example of Monotonic Rules: Family Relationships	p. 161
Monotonic Rules: Syntax	p. 162
Monotonic Rules: Semantics	p. 164
Description Logic Programs (DLP)	p. 167
Semantic Web Rules Language (SWRL)	p. 170
Nonmonotonic Rules: Motivation and Syntax	p. 171
Example of Nonmonotonic Rules: Brokered Trade	p. 173
Rule Markup Language (RuleML)	p. 177
Summary	p. 179
Suggested Reading	p. 179
Applications	p. 185
Introduction	p. 185
Horizontal Information Products at Elsevier	p. 185
Openacademia: Distributed Publication Management	p. 189
Bibster: Data Exchange in a Peer-to-Peer System	p. 195
Data Integration at Audi	p. 197
Skill Finding at Swiss Life	p. 201
Think Tank Portal at EnerSearch	p. 203
e-Learning	p. 207
Web Services	p. 210
Other Scenarios	p. 219
Suggested Reading	p. 221
Ontology Engineering	p. 225
Introduction	p. 225
Constructing Ontologies Manually	p. 225
Reusing Existing Ontologies	p. 229
Semiautomatic Ontology Acquisition	p. 231
Ontology Mapping	p. 235
On-To-Knowledge Semantic Web Architecture	p. 237
Suggested Reading	p. 240
Project	p. 240
Conclusion and Outlook	p. 245
Introduction	p. 245
Which Semantic Web?	p. 245
Four Popular Fallacies	p. 246
Current Status	p. 248
Selected Key Research Challenges	p. 251
Suggested Reading	p. 252
Abstract OWL Syntax	p. 253
Index	p. 261
Table of Contents provided by Blackwell. All Rights Reserved.