A Semantic Web Primer, - download pdf or read online

By Grigoris Antoniou, Frank van Harmelen

ISBN-10: 0262012421

ISBN-13: 9780262012423

ISBN-10: 1435635221

ISBN-13: 9781435635227

The advance of the Semantic internet, with machine-readable content material, has the capability to revolutionize the realm huge internet and its makes use of. A Semantic internet Primer offers an creation and consultant to this nonetheless rising box, describing its key rules, languages, and applied sciences. appropriate to be used as a textbook or for self-study via execs, it concentrates on undergraduate-level primary innovations and methods that may let readers to continue with construction functions on their lonesome and contains routines, undertaking descriptions, and annotated references to correct on-line fabrics. A Semantic net Primer offers a scientific remedy of the various languages (XML, RDF, OWL, and ideas) and applied sciences (explicit metadata, ontologies, and common sense and inference) which are crucial to Semantic net improvement in addition to such the most important comparable issues as ontology engineering and alertness eventualities. This considerably revised and up-to-date moment version displays fresh advancements within the box, masking new program components and instruments. the hot fabric encompasses a dialogue of such issues as SPARQL because the RDF question language; OWL DLP and its fascinating sensible and theoretical homes; the SWRL language (in the bankruptcy on rules); OWL-S (on which the dialogue of net providers is now based). the recent ultimate bankruptcy considers the state-of-the-art of the sector this present day, captures ongoing discussions, and descriptions the main demanding concerns dealing with the Semantic net sooner or later. Supplementary fabrics, together with slides, on-line types of the various code fragments within the publication, and hyperlinks to extra studying, are available at www.semanticwebprimer.org.

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He asked the agent to take all necessary steps to finalize the task. 2 are not science fiction; they do not require revolutionary scientific progress to be achieved. We can reasonably claim that the challenge is an engineering and technology adoption rather than a scientific one: partial solutions to all important parts of the problem exist. At present, the greatest needs are in the areas of integration, standardization, development of tools, and adoption by users. But, of course, further technological progress will lead to a more advanced Semantic Web than can, in principle, be achieved today.

Also, for advanced applications it will be useful to represent formally the beliefs, desires, and intentions of agents, and to create and maintain user models. However, these points are somewhat orthogonal to the Semantic Web technologies. Therefore they are not discussed further in this book. 5 The Semantic Web versus Artificial Intelligence As we have said, most of the technologies needed for the realization of the Semantic Web build upon work in the area of artificial intelligence. Given that AI has a long history, not always commercially successful, one might worry that, in the worst case, the Semantic Web will repeat AI’s errors: big promises that raise too high expectations, which turn out not to be fulfilled (at least not in the promised time frame).

XML Schema provides powerful capabilities for defining data type. First there is a variety of built-in data types. Here we list a few: 42 2 Structured Web Documents: XML • Numerical data types, including integer, short, Byte, long, float, decimal • String data types, including string, ID, IDREF, CDATA, language • Date and time data types, including time, date, gMonth, gYear There are also user-defined data types, comprising simple data types, which cannot use elements or attributes, and complex data types, which can use elements and attributes.

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A Semantic Web Primer, by Grigoris Antoniou, Frank van Harmelen

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