Practical RDF (ebook)(audiobook)(audiobook)

Spis treści

• Practical RDF
  • SPECIAL OFFER: Upgrade this ebook with OReilly
  • A Note Regarding Supplemental Files
  • Preface
    • Audience
    • Structure of This Book
    • Conventions Used in This Book
    • How to Contact Us
    • Acknowledgments
  • 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
  • 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
      • 2.5.1. A Brief Look at N3
      • 2.5.2. N-Triples
    • 2.6. Talking RDF: Lingo and Vocabulary
      • 2.6.1. Graphs and Subgraphs
      • 2.6.2. Ground and Not Graph
      • 2.6.3. Entailment
  • 3. The Basic Elements Within the RDF/XML Syntax
    • 3.1. Serializing RDF to XML
      • 3.1.1. Striped Syntax
      • 3.1.2. Predicates
      • 3.1.3. Namespaces and QNames
    • 3.2. RDF Blank Nodes
    • 3.3. URI References
      • 3.3.1. Resolving Relative URIs and xml:base
      • 3.3.2. Resolving References with rdf:ID
    • 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
  • 4. Specialized RDF Relationships: Reification, Containers, and Collections
    • 4.1. Containers
      • 4.1.1. Containers as Covered Within the Initial Specification Release
      • 4.1.2. Containers as Typed Nodes
      • 4.1.3. Containers Today
    • 4.2. Collections
    • 4.3. Reification: The RDF Big Ugly
      • 4.3.1. Reified Statements
      • 4.3.2. The Necessity of Reification and Metastatements
      • 4.3.3. A Shorthand Reification Syntax
      • 4.3.4. What Reification Solves
        • 4.3.4.1. Implying trust
        • 4.3.4.2. Metadata about statements
  • 5. Important Concepts from the W3C RDF Vocabulary/Schema
    • 5.1. RDF Vocabulary: Describing the Data
      • 5.1.1. Metadatas Role in Existing Applications
      • 5.1.2. RDF Schema: Metadata Repository
    • 5.2. Core RDF Schema Elements
      • 5.2.1. Overview of the RDF Classes
      • 5.2.2. Demonstrations of the RDF Schema Properties
    • 5.3. Refining RDF Vocabularies with Constraints
    • 5.4. RDF Schema Alternatives
  • 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
      • 6.3.1. The PostCon Domain Elements
      • 6.3.2. Prototyping the Vocabulary
      • 6.3.3. Adding Repeating Values
      • 6.3.4. Adding a Container
      • 6.3.5. Adding in a Value
    • 6.4. Formalizing the Vocabulary with RDFS
      • 6.4.1. What Is a Class and What Is a Property?
      • 6.4.2. Defining the Vocabulary Classes
      • 6.4.3. Defining the Properties
    • 6.5. Integrating the Dublin Core
      • 6.5.1. An Overview of the Dublic Core MetaData Element Set
      • 6.5.2. Dublin Core in RDF/XML
      • 6.5.3. Qualified Dublin Core
      • 6.5.4. Mixing Vocabularies
      • 6.5.5. Using DC-dot to Generate DC RDF
  • 7. Editing, Parsing, and Browsing RDF/XML
    • 7.1. BrownSauce
    • 7.2. Parsers
      • 7.2.1. ARP2
      • 7.2.2. ICS-FORTH Validating RDF Parser
    • 7.3. Editors
      • 7.3.1. IsaViz
      • 7.3.2. RDF Editor in Java
  • 8. Jena: RDF in Java
    • 8.1. Overview of the Classes
      • 8.1.1. The Underlying Parser
      • 8.1.2. The Model
      • 8.1.3. The Query
      • 8.1.4. DAML+OIL
    • 8.2. Creating and Serializing an RDF Model
      • 8.2.1. Very Quick Simple Look
      • 8.2.2. Encapsulating the Vocabulary in a Java Wrapper Class
      • 8.2.3. Adding More Complex Structures
      • 8.2.4. Creating a Typed Node
      • 8.2.5. Creating a Container
    • 8.3. Parsing and Querying an RDF Document
      • 8.3.1. Just Doing a Basic Dump
      • 8.3.2. Accessing Specific Values
    • 8.4. In-Memory Versus Persistent Model Storage
  • 9. RDF and Perl, PHP, and Python
    • 9.1. RDF/XML and Perl
      • 9.1.1. Ginger Alliance PerlRDF
      • 9.1.2. Model Persistence and Basic Querying
      • 9.1.3. Building an RDF Model
      • 9.1.4. Parsing RDF/XML Documents
      • 9.1.5. Querying RDF with RDF::Core
    • 9.2. RDF API for PHP
      • 9.2.1. Basic Building Blocks
      • 9.2.2. Building an RDF Model
    • 9.3. RDF and Python: RDFLib
  • 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
      • 10.4.1. Jena's RDQL and the Query-O-Matic
        • 10.4.1.1. The Query-O-Matic
        • 10.4.1.2. Trying out the Query-O-Matic
      • 10.4.2. PHP Query-O-Matic Lite
    • 10.5. Sesame
  • 11. A Brief Look at Additional RDF Application Environments
    • 11.1. RDF and C#
    • 11.2. Wilbur RDF API CLOS
    • 11.3. Overview of Redlanda Multilanguage-Based RDF Framework
      • 11.3.1. Working with the Online Tools
      • 11.3.2. Working with the Redland Framework
      • 11.3.3. A Quick Demo
    • 11.4. Redfoot
  • 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
      • 12.4.1. OWL Guide 1.0
      • 12.4.2. OWL Reference 1.0
      • 12.4.3. OWL Abstract Syntax and Semantics
      • 12.4.4. Feature Synopsis for OWL Lite and OWL
    • 12.5. Basic Constructs of OWL
      • 12.5.1. OWL Header
      • 12.5.2. OWL Classes and Individuals
      • 12.5.3. OWL Simple Properties and Complex Data Types
    • 12.6. Bits of Knowledge: More Complex OWL Constructs
      • 12.6.1. Increasing the Power of the Property
        • 12.6.1.1. Property characteristics
        • 12.6.1.2. Property restrictions
      • 12.6.2. Complex Classes
        • 12.6.2.1. Intersection
        • 12.6.2.2. Union
        • 12.6.2.3. Complement
        • 12.6.2.4. Enumeration
        • 12.6.2.5. Disjoint
    • 12.7. The Complementary Nature of RDF and OWL
    • 12.8. Ontology Tools: Editors
      • 12.8.1. SMORESemantic Markup, Ontology, and RDF Editor
      • 12.8.2. Protégé
  • 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
      • 13.3.1. channel
      • 13.3.2. title, link, and description
      • 13.3.3. items
      • 13.3.4. image
      • 13.3.5. textinput
      • 13.3.6. item
    • 13.4. Extending the Specification Through Modules
    • 13.5. The RSS Modules
      • 13.5.1. Core: Syndication, Content, and Dublin Core
      • 13.5.2. Extended Modules
    • 13.6. RSS Aggregators
      • 13.6.1. RSS Autodiscovery
      • 13.6.2. AmphetaDesk
        • 13.6.2.1. Using AmphetaDesk
        • 13.6.2.2. More advanced customization
      • 13.6.3. Meerkat
      • 13.6.4. NetNewsWire and NetNewsWire Lite
    • 13.7. Creating Your Own RSS Content
    • 13.8. Build Your Own RSS Consumer
    • 13.9. Merging RDF/RSS Files
  • 14. A World of Uses: Noncommercial Applications Based on RDF
    • 14.1. Mozilla
      • 14.1.1. XUL Briefly
      • 14.1.2. XUL Templates
    • 14.2. Creative Commons License
    • 14.3. MIT's DSpace System Documentation
    • 14.4. FOAF: Friend-of-a-Friend
      • 14.4.1. The FOAF-A-Matic
      • 14.4.2. FOAF Technologies
  • 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?
  • About the Author
  • Colophon
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