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Full Description
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.
Contents
Preface; 1. RDF: An Introduction The Semantic Web and RDF: A Brief History The Specifications When to Use and Not Use RDF Some Uses of RDF/XML Related Technologies Going Forward; 2. RDF: Heart and Soul The Search for Knowledge The RDF Triple The Basic RDF Data Model and the RDF Graph URIs RDF Serialization: N3 and N-Triples Talking RDF: Lingo and Vocabulary; 3. The Basic Elements Within the RDF/XML Syntax Serializing RDF to XML RDF Blank Nodes URI References Representing Structured Data with rdf:value The rdf:type Property RDF/XML Shortcuts More on RDF Data Types RDF/XML: Separate Documents or Embedded Blocks; 4. Specialized RDF Relationships: Reification, Containers, and Collections Containers Collections Reification: The RDF Big Ugly; 5. Important Concepts from the W3C RDF Vocabulary/Schema RDF Vocabulary: Describing the Data Core RDF Schema Elements Refining RDF Vocabularies with Constraints RDF Schema Alternatives; 6. Creating an RDF Vocabulary How RDF Vocabularies Differ from XML Vocabularies Defining the Vocabulary: Business and Scope Defining the Vocabulary: Elements Formalizing the Vocabulary with RDFS Integrating the Dublin Core; 7. Editing, Parsing, and Browsing RDF/XML BrownSauce Parsers Editors; 8. Jena: RDF in Java Overview of the Classes Creating and Serializing an RDF Model Parsing and Querying an RDF Document In-Memory Versus Persistent Model Storage; 9. RDF and Perl, PHP, and Python RDF/XML and Perl RDF API for PHP RDF and Python: RDFLib; 10. Querying RDF: RDF as Data RDF and the Relational Data Model Roots: rdfDB QL Inkling and SquishQL RDQL Sesame; 11. A Brief Look at Additional RDF Application Environments RDF and C SHARP Wilbur - RDF API CLOS Overview of Redland-a Multilanguage-Based RDF Framework Redfoot; 12. Ontologies: RDF Business Models Why Ontology? Brief History of the Ontology Movement OWL Use Cases and Requirements OWL Specifications Basic Constructs of OWL Bits of Knowledge: More Complex OWL Constructs The Complementary Nature of RDF and OWL Ontology Tools: Editors; 13. Subscription and Aggregation with RSS RSS: Quick History RSS; 1.0: A Quick Introduction A Detailed Look at the Specification Extending the Specification Through Modules The RSS Modules RSS Aggregators Creating Your Own RSS Content Build Your Own RSS Consumer Merging RDF/RSS Files; 14. A World of Uses: Noncommercial Applications Based on RDF Mozilla Creative Commons License MIT's DSpace System Documentation FOAF: Friend-of-a-Friend; 15. A World of Uses: Commercial Uses of RDF/XML Chandler: RDF Within an Open Source PIM RDF Gateway, a Commercial RDF Database Siderean Software's Seamark Plugged In Software's Tucana Knowledge Store RDF and Adobe: XMP What's It All Mean?; Index
