Practical RDF

The Resource Description Framework (RDF) is a structure for describing and interchanging metadata on the Web--anything from library catalogs and worldwide directories to bioinformatics, Mozilla internal data structures, and knowledge bases for artificial intelligence projects. RDF provides a consistent framework and syntax for describing and querying data, making it possible to share website descriptions more easily. RDF's capabilities, however, have long been shrouded by its reputation for complexity and a difficult family of specifications. Practical RDF breaks through this reputation with immediate and solvable problems to help you understand, master, and implement RDF solutions. Practical RDF explains RDF from the ground up, providing real-world examples and descriptions of how the technology is being used in applications like Mozilla, FOAF, and Chandler, as well as infrastructure you can use to build your own applications. This book cuts to the heart of the W3C's often obscure specifications, giving you tools to apply RDF successfully in your own projects. The first part of the book focuses on the RDF specifications. After an introduction to RDF, the book covers the RDF specification documents themselves, including RDF Semantics and Concepts and Abstract Model specifications, RDF constructs, and the RDF Schema. The second section focuses on programming language support, and the tools and utilities that allow developers to review, edit, parse, store, and manipulate RDF/XML. Subsequent sections focus on RDF's data roots, programming and framework support, and practical implementation and use of RDF and RDF/XML. If you want to know how to apply RDF to information processing, Practical RDF is for you. Whether your interests lie in large-scale information aggregation and analysis or in smaller-scale projects like weblog syndication, this book will provide you with a solid foundation for working with RDF.

Autorentext
Shelley Powers is an independent contractor, currently living in St. Louis, who specializes in technology architecture and software development. She's authored several computer books, including Developing ASP Components, Unix Power Tools 3rd edition, Essential Blogging, and Practical RDF. In addition, Shelley has also written several articles related primarily to web technology, many for O'Reilly. Shelley's web site network is at http://burningbird.net, and her weblog is Burningbird, at http://weblog.burningbird.net.

Inhalt
Preface; Audience; Structure of This Book; Conventions Used in This Book; How to Contact Us; Acknowledgments; Chapter 1: RDF: An Introduction; 1.1 The Semantic Web and RDF: A Brief History; 1.2 The Specifications; 1.3 When to Use and Not Use RDF; 1.4 Some Uses of RDF/XML; 1.5 Related Technologies; 1.6 Going Forward; Chapter 2: RDF: Heart and Soul; 2.1 The Search for Knowledge; 2.2 The RDF Triple; 2.3 The Basic RDF Data Model and the RDF Graph; 2.4 URIs; 2.5 RDF Serialization: N3 and N-Triples; 2.6 Talking RDF: Lingo and Vocabulary; Chapter 3: The Basic Elements Within the RDF/XML Syntax; 3.1 Serializing RDF to XML; 3.2 RDF Blank Nodes; 3.3 URI References; 3.4 Representing Structured Data with rdf:value; 3.5 The rdf:type Property; 3.6 RDF/XML Shortcuts; 3.7 More on RDF Data Types; 3.8 RDF/XML: Separate Documents or Embedded Blocks; Chapter 4: Specialized RDF Relationships: Reification, Containers, and Collections; 4.1 Containers; 4.2 Collections; 4.3 Reification: The RDF Big Ugly; Chapter 5: Important Concepts from the W3C RDF Vocabulary/Schema; 5.1 RDF Vocabulary: Describing the Data; 5.2 Core RDF Schema Elements; 5.3 Refining RDF Vocabularies with Constraints; 5.4 RDF Schema Alternatives; Chapter 6: Creating an RDF Vocabulary; 6.1 How RDF Vocabularies Differ from XML Vocabularies; 6.2 Defining the Vocabulary: Business and Scope; 6.3 Defining the Vocabulary: Elements; 6.4 Formalizing the Vocabulary with RDFS; 6.5 Integrating the Dublin Core; Chapter 7: Editing, Parsing, and Browsing RDF/XML; 7.1 BrownSauce; 7.2 Parsers; 7.3 Editors; Chapter 8: Jena: RDF in Java; 8.1 Overview of the Classes; 8.2 Creating and Serializing an RDF Model; 8.3 Parsing and Querying an RDF Document; 8.4 In-Memory Versus Persistent Model Storage; Chapter 9: RDF and Perl, PHP, and Python; 9.1 RDF/XML and Perl; 9.2 RDF API for PHP; 9.3 RDF and Python: RDFLib; Chapter 10: Querying RDF: RDF as Data; 10.1 RDF and the Relational Data Model; 10.2 Roots: rdfDB QL; 10.3 Inkling and SquishQL; 10.4 RDQL; 10.5 Sesame; Chapter 11: A Brief Look at Additional RDF Application Environments; 11.1 RDF and C#; 11.2 Wilbur - RDF API CLOS; 11.3 Overview of Redland-a Multilanguage-Based RDF Framework; 11.4 Redfoot; Chapter 12: Ontologies: RDF Business Models; 12.1 Why Ontology?; 12.2 Brief History of the Ontology Movement; 12.3 OWL Use Cases and Requirements; 12.4 OWL Specifications; 12.5 Basic Constructs of OWL; 12.6 Bits of Knowledge: More Complex OWL Constructs; 12.7 The Complementary Nature of RDF and OWL; 12.8 Ontology Tools: Editors; Chapter 13: Subscription and Aggregation with RSS; 13.1 RSS: Quick History; 13.2 RSS 1.0: A Quick Introduction; 13.3 A Detailed Look at the Specification; 13.4 Extending the Specification Through Modules; 13.5 The RSS Modules; 13.6 RSS Aggregators; 13.7 Creating Your Own RSS Content; 13.8 Build Your Own RSS Consumer; 13.9 Merging RDF/RSS Files; Chapter 14: A World of Uses: Noncommercial Applications Based on RDF; 14.1 Mozilla; 14.2 Creative Commons License; 14.3 MIT's DSpace System Documentation; 14.4 FOAF: Friend-of-a-Friend; Chapter 15: A World of Uses: Commercial Uses of RDF/XML; 15.1 Chandler: RDF Within an Open Source PIM; 15.2 RDF Gateway, a Commercial RDF Database; 15.3 Siderean Software's Seamark; 15.4 Plugged In Software's Tucana Knowledge Store; 15.5 RDF and Adobe: XMP; 15.6 What's It All Mean?; Colophon;

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