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RDF Primer
The Resource Description Framework (RDF) is a language for representing information about resources in the World Wide Web. This Primer is designed to provide the reader with the basic knowledge required to effectively use RDF. It introduces the basic concepts of RDF and describes its XML syntax. It describes how to define RDF vocabularies using the RDF Vocabulary Description Language, and gives an overview of some deployed RDF applications. It also describes the content and purpose of other RDF specification documents.RDF is a directed, labeled graph data format for representing information in the Web. This specification defines the syntax and semantics of the SPARQL query language for RDF. SPARQL can be used to express queries across diverse data sources, whether the data is stored natively as RDF or viewed as RDF via middleware. SPARQL contains capabilities for querying required and optional graph patterns along with their conjunctions and disjunctions.
SPARQL Query Language for RDF
Abstract The Resource Description Framework (RDF) is a general-purpose language for representing information in the Web. This specification describes how to use RDF to describe RDF vocabularies. This specification defines a vocabulary for this purpose and defines other built-in RDF vocabulary initially specified in the RDF Model and Syntax Specification. This specification is one of several [ RDF-PRIMER ] [ RDF-SYNTAX ] [ RDF-CONCEPTS ] [ RDF-SEMANTICS ] [ RDF-TESTS ] related to RDF.
RDF Vocabulary Description Language 1.0: RDF Schema
The OWL 2 Web Ontology Language, informally OWL 2, is an ontology language for the Semantic Web with formally defined meaning. OWL 2 ontologies provide classes, properties, individuals, and data values and are stored as Semantic Web documents. OWL 2 ontologies can be used along with information written in RDF, and OWL 2 ontologies themselves are primarily exchanged as RDF documents. This document serves as an introduction to OWL 2 and the various other OWL 2 documents. It describes the syntaxes for OWL 2, the different kinds of semantics, the available profiles (sub-languages), and the relationship between OWL 1 and OWL 2. May Be Superseded
OWL 2 Web Ontology Language Document Overview
OWL Web Ontology Language Overview
The OWL Working Group has produced a W3C Recommendation for a new version of OWL which adds features to this 2004 version, while remaining compatible. Please see OWL 2 Document Overview for an introduction to OWL 2 and a guide to the OWL 2 document set. Deborah L. McGuinness (Knowledge Systems Laboratory, Stanford University) Copyright © 2004 W3C ® ( MIT , ERCIM , Keio ), All Rights Reserved.
SKOS—Simple Knowledge Organization System—provides a model for expressing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading lists, taxonomies, folksonomies, and other similar types of controlled vocabulary. As an application of the Resource Description Framework (RDF) , SKOS allows concepts to be composed and published on the World Wide Web, linked with data on the Web and integrated into other concept schemes. This document is a user guide for those who would like to represent their concept scheme using SKOS.
SKOS Simple Knowledge Organization System Primer
RDFa Primer
Status of This Document This section describes the status of this document at the time of its publication. Other documents may supersede this document.
Abstract GRDDL is a mechanism for G leaning R esource D escriptions from D ialects of L anguages. It is a technique for obtaining RDF data from XML documents and in particular XHTML pages. Authors may explicitly associate documents with transformation algorithms, typically represented in XSLT, using a link element in the head of the document.
GRDDL Primer
This document is an overview of the Rule Interchange Format (RIF). It provides a high-level explanation of RIF concepts and architecture as well as a general survey of RIF documents. May Be Superseded This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.
RIF Overview
This document specifies a reversible mapping (or transformation) from Rule Interchange Format (RIF) XML documents to Resource Description Framework (RDF) graphs. This mapping allows the contents of RIF documents to be interoperably stored and processed as RDF triples, using existing serializations and tools for RDF. When used with the standard mapping from RDF triples to RIF frames, this also provides a "reflection" or "introspection" mechanism, an interoperable way for RIF rules to operate on RIF documents. May Be Superseded This section describes the status of this document at the time of its publication.
RIF In RDF
Rules interchanged using the Rule Interchange Format RIF may depend on or be used in combination with RDF data and RDF Schema or OWL ontologies. This document, developed by the Rule Interchange Format (RIF) Working Group , specifies the interoperation between RIF and the data and ontology languages RDF, RDF Schema, and OWL. May Be Superseded
RIF RDF and OWL Compatibility
This document shows how OWL 2 RL can be implemented using RIF. It provides an analysis of how to represent OWL 2 RL inference rules within RIF Core. The OWL 2 RL inference rules can be implemented both via a fixed RIF Core rule set (Appendix 7) and via a mapping algorithm which converts an OWL 2 RL ontology to a customized RIF Core rule set (Appendix 8). May Be Superseded