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Kurzbeschreibung
The Web is growing at an astounding pace surpassing the 8 billion page mark. However, most pages are still designed for human consumption and cannot be processed by machines. This book provides a well-paced introduction to the Semantic Web. It covers a wide range of topics, from new trends (ontologies, rules) to existing technologies (Web Services and software agents) to more formal aspects (logic and inference). It includes: real-world (and complete) examples of the application of Semantic Web concepts; how the technology presented and discussed throughout the book can be extended to other application areas.
Synopsis
Although the Web is growing at an astounding pace, surpassing the 8 billion page mark, most pages are still designed for human consumption and cannot be processed by machines. Computers are used to display the information, but human intervention is still required to interpret the results. The Semantic Web unleashes a revolution of new possibilities in which content is given formal, machine processable semantics. This book provides a well-paced introduction to the Semantic Web. It covers a wide range of topics, from new trends (ontologies, rules) to existing technologies (Web Services and software agents) to more formal aspects (logic and inference). It includes:'real-world (and complete) examples of the application of Semantic Web concepts'; and, how the technology presented and discussed throughout the book can be extended to other application areas, i.e. Geographic Information Sciences, Bioinformatics and Fine Arts. It is written for researchers, IT students and practitioners.
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Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis | Rückseite
Buchdeckel | Copyright | Inhaltsverzeichnis | Auszug | Stichwortverzeichnis | Rückseite
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unsolved semantic web
15. März 2008
Format:Gebundene Ausgabe
The fact that the book comes out of NASA is a good indicator of how some large organisations are taking seriously the rise of the Semantic Web. It explains how the current Web (the so-called 1.0 version) has its limitations, despite its huge success. That success is due to the construction of webpages, that are meant for human visual and manual comprehension. The mixture of presentation and content in a typical webpage is immensely aggravating if you want to construct ways to extract meaning.
In an effort to rise above 1.0, the book talks about many software technologies that have arisen. The base technology is surely XML. From the text, you can think of XML as HTML, except that you, the author, get to define the tags. Whereas HTML comes with hardwired tags.
But while XML is a great start, the problems only begin. While you, a human, can now define tags, the meaning and intent of what you define still has to be discerned by others. If this can only be done manually, then we are only slightly better off than 1.0. How to do this programmatically? This, in essence, is what the book devotes most of its space to. Ontologies have to be defined. Terms and meanings tied together. Then there are Web Services. So that organisations can build automated interactions with others. Perhaps to facilitate e-commerce. Or to extend and automate a supply chain. An entire panoply of standards has arisen; described as WS-*. Like Web Service Description Language. And Web Service Business Process Execution Language. Very easy to trip over some of the book's jargon. Unfortunately, you have to get used to it.
Much is still unresolved. You get an appreciation of where we are, and how far we have to go.
In an effort to rise above 1.0, the book talks about many software technologies that have arisen. The base technology is surely XML. From the text, you can think of XML as HTML, except that you, the author, get to define the tags. Whereas HTML comes with hardwired tags.
But while XML is a great start, the problems only begin. While you, a human, can now define tags, the meaning and intent of what you define still has to be discerned by others. If this can only be done manually, then we are only slightly better off than 1.0. How to do this programmatically? This, in essence, is what the book devotes most of its space to. Ontologies have to be defined. Terms and meanings tied together. Then there are Web Services. So that organisations can build automated interactions with others. Perhaps to facilitate e-commerce. Or to extend and automate a supply chain. An entire panoply of standards has arisen; described as WS-*. Like Web Service Description Language. And Web Service Business Process Execution Language. Very easy to trip over some of the book's jargon. Unfortunately, you have to get used to it.
Much is still unresolved. You get an appreciation of where we are, and how far we have to go.
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