Download e-book for kindle: A Semantic Web Primer (Cooperative Information Systems) by Grigoris Antoniou, Frank van van Harmelen

By Grigoris Antoniou, Frank van van Harmelen

The advance of the Semantic net, with machine-readable content material, has the capability to revolutionize the area extensive internet and its use. A Semantic net Primer offers an advent and advisor to this rising box, describing its key principles, languages, and applied sciences. appropriate to be used as a textbook or for self-study through pros, it concentrates on undergraduate-level primary techniques and strategies that would allow readers to continue with construction functions on their lonesome. It contains workouts, undertaking descriptions, and annotated references to proper on-line fabrics. A Semantic net Primer is the one to be had booklet at the Semantic internet to incorporate a scientific therapy of the various languages (XML, RDF, OWL, and principles) and applied sciences (explicit metadata, ontologies, and good judgment and inference) which are significant to Semantic net improvement. The booklet additionally examines such the most important comparable subject matters as ontology engineering and alertness situations. After an introductory bankruptcy, issues lined in succeeding chapters comprise XML and similar applied sciences that help semantic interoperability; RDF and RDF Schema, the traditional info version for machine-processable semantics; and OWL, the W3C-approved typical for an internet ontology language extra vast than RDF Schema; principles, either monotonic and nonmonotonic, within the framework of the Semantic net; chosen software domain names and the way the Semantic net would get advantages them; the advance of ontology-based platforms; and present debates on key concerns and predictions for the longer term.

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Sheth. Semantic Web. html>. • H. Boley, S. Decker, and M. Sintek. Tutorial on Knowledge Markup Techniques. de/km/knowmark/>. org>. org/2001/sw/>. org>. There is a good selection of research papers providing technical information on issues relating to the Semantic Web: • D. Fensel, J. Hendler, H. Lieberman and W. Wahlster, eds. Spinning the Semantic Web. Cambridge, MA: MIT Press, 2003. • J. Davies, D. Fensel and F. van Harmelen, eds. Towards the Semantic Web: Ontology-Driven Knowledge Management.

6 Well-Formed XML Documents An XML document is well-formed if it is syntactically correct. Some syntactic rules are • There is only one outermost element in the document (called the root element). • Each element contains an opening and a corresponding closing tag. • Tags may not overlap, as in Lee Hong. • Attributes within an element have unique names. • Element and tag names must be permissible. 7 Structured Web Documents in XML The Tree Model of XML Documents It is possible to represent well-formed XML documents as trees; thus trees provide a formal data model for XML.

Thus logic can be used to uncover ontological knowledge that is implicitly given. By doing so, it can also help uncover unexpected relationships and inconsistencies. But logic is more general than ontologies. It can also be used by intelligent agents for making decisions and selecting courses of action. For example, a shop agent may decide to grant a discount to a customer based on the rule loyalCustomer(X) → discount(5%) where the loyalty of customers is determined from data stored in the corporate database.

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