By Grigoris Antoniou, Visit Amazon's Paul Groth Page, search results, Learn about Author Central, Paul Groth, , Frank van Harmelen, Rinke Hoekstra
The improvement of the Semantic net, with machine-readable content material, has the aptitude to revolutionize the realm vast net and its makes use of. A Semantic net Primer offers an creation and consultant to this consistently evolving box, describing its key rules, languages, and applied sciences. appropriate to be used as a textbook or for autonomous research by means of pros, it concentrates on undergraduate-level primary thoughts and strategies that might permit readers to continue with construction purposes on their lonesome and contains workouts, undertaking descriptions, and annotated references to suitable on-line materials.
The 3rd version of this primary textual content has been completely up-to-date, with major new fabric that displays a quickly constructing box. therapy of the various languages (OWL2, ideas) expands the assurance of RDF and OWL, defining the information version independently of XML and together with assurance of N3/Turtle and RDFa. A bankruptcy is dedicated to OWL2, the recent W3C regular. This variation additionally good points extra insurance of the question language SPARQL, the guideline language RIF and the potential of interplay among principles and ontology languages and functions. The bankruptcy on Semantic internet purposes displays the speedy advancements of the earlier few years. a brand new bankruptcy bargains principles for time period initiatives. extra fabric, together with updates at the technological tendencies and learn instructions, are available at http://www.semanticwebprimer.org.
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Extra info for A Semantic Web Primer
E. their terminology) should be interpreted. Combined, these technologies deﬁne the components of a standard language for exchanging arbitrary data between machines: • RDF – data model • RDFS – semantics • Turtle / RDFa/ RDF-XML – syntax While RDF is primarily the data model within this language, it is often used as the name for the whole of it (a sin we commit ourselves within this book). 2 describes RDF. 3. 6. 8. 2 RDF: Data Model The fundamental concepts of RDF are resources, properties, statements, and graphs.
5 Container Classes RDF also allows for containers to be represented in a standard way. , choice). rdf:Bag, the class of bags, rdf:Seq, the class of sequences, rdf:Alt, the class of alternatives, rdfs:Container, a superclass of all container classes, including the three preceding ones. 6 Utility Properties A resource may be deﬁned and described in many places on the web. The following properties allow us to deﬁne links to those addresses: rdfs:seeAlso relates a resource to another resource that explains it.
RDF Schema offers a number of modeling primitives for organizing RDF vocabularies in typed hierarchies. Chapter 3 is devoted to the query language SPARQL that plays the same role in the RDF world as SQL in the relational world. Chapter 4 discusses OWL2, the current revision of OWL, a web ontology language. It offers more modeling primitives than RDF Schema, and it has a clean, formal semantics. Chapter 5 is devoted to rules in the framework of the Semantic Web. While rules on the semantic web have not yet reached the same level of community agreement as RDF, SPARQL, or OWL, the principles to be adopted are quite clear, so it makes sense to present them here.
A Semantic Web Primer by Grigoris Antoniou, Visit Amazon's Paul Groth Page, search results, Learn about Author Central, Paul Groth, , Frank van Harmelen, Rinke Hoekstra