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Abstract

This text introduces the standardized knowledge representation languages for modeling ontologies operating at the core of the semantic web. It covers RDF schema, Web Ontology Language (OWL), rules, query languages, the OWL 2 revision, and the forthcoming Rule Interchange Format (RIF). A 2010 CHOICE Outstanding Academic Title ! The nine chapters of the book guide the reader through the major foundational languages for the semantic Web and highlight the formal semantics. ! the book has very interesting supporting material and exercises, is oriented to W3C standards, and provides the necessary foundations for the semantic Web. It will be easy to follow by the computer scientist who already has a basic background on semantic Web issues; it will also be helpful for both self-study and teaching purposes. I recommend this book primarily as a complementary textbook for a graduate or undergraduate course in a computer science or a Web science academic program. --Computing Reviews, February 2010 This book is unique in several respects. It contains an in-depth treatment of all the major foundational languages for the Semantic Web and provides a full treatment of the underlying formal semantics, which is central to the Semantic Web effort. It is also the very first textbook that addresses the forthcoming W3C recommended standards OWL 2 and RIF. Furthermore, the covered topics and underlying concepts are easily accessible for the reader due to a clear separation of syntax and semantics ! I am confident this book will be well received and play an important role in training a larger number of students who will seek to become proficient in this growing discipline.

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Abstract

This book offers a comprehensive guide to the world of metadata, from its origins in the ancient cities of the Middle East, to the Semantic Web of today. The author takes us on a journey through the centuries-old history of metadata up to the modern world of crowdsourcing and Google, showing how metadata works and what it is made of. The author explores how it has been used ideologically and how it can never be objective. He argues how central it is to human cultures and the way they develop. Metadata: Shaping Knowledge from Antiquity to the Semantic Web is for all readers with an interest in how we humans organize our knowledge and why this is important. It is suitable for those new to the subject as well as those know its basics. It also makes an excellent introduction for students of information science and librarianship.

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Footnote

In 6 Kapiteln mit unterschiedlichen Schwerpunkten (Einführung, Mashups für Bibliotheks-Webseiten, Katalog-Mashups, Karten-, Foto- und Video-Mashups, Mehrwert für Nutzerinnen durch Mashups) werden verschiedene Projekte vorgestellt, die v.a. im anglo-amerikanischen Raum aber auch international entwickelt und umgesetzt wurden. Zur Sprache kommen u.a. die Einbindung der Nutzer-generierten Daten von Library-Thing, die kreative Nutzung von bekannten Plattformen wie Flickr oder del. icio.us für bibliothekarische Dienste, das Open-Source-Katalog-Discovery-Interface Blacklight und verschiedene Mashup-Tools wie z.B. Yahoo!Pipes. Vielen Referenzen und Websites, die Hilfestellung beim Einstieg in die Materie leisten können, ergänzen den Band. Wichtige Grundlagenbegriffe (API, SRU etc.) werden erklärt und anhand von Beispielen veranschaulicht. Screenshots illustrieren die vorgestellten Projekte. Sehr nützlich: Am Ende des Buches befindet sich ein Glossar zum Nachschlagen mit kurzen Erklärungen der wichtigsten Begriffe, und es wurde ein eigene Webseite eingerichtet, auf denen sämtliche im Buch angegebene Links und weitere Informationen zu finden sind (mashups.web2learning.net). Bibliothekskataloge haben mit das größte Potential, in Mashups verwendet zu werden, sowohl was die Anreicherung mit externen Daten als auch die Datenlieferung an andere Anwendungen betrifft. An mehreren Stellen im Buch wird deutlich, wie wichtig die Zugänglichkeit bzw. Offenheit der Daten für die Verbreitung und Weiterentwicklung im Web ist und wie Bibliotheken damit (auch im Zeitalter von Google) relevant bleiben. Hier muss aber angesichts der meist in proprietären Systemen "gefangenen" bibliographischen Daten (Stichwort Datensilo) sowohl von Seiten der Bibliotheken als auch von Seiten der Hersteller von integrierten Bibliothekssystemen noch stark in Richtung Open Data umgedacht werden (diese Forderung findet sich auch in Fachdiskussionen über die Zukunft der Bibliotheken und Kataloge wieder).

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Date

26. 7.2000 20:00:49

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Date

26. 7.2000 20:00:49

Footnote

Vgl.: http://www.springer.com/computer/database+management+%26+information+retrieval/book/978-3-540-72215-1.

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Date

26. 3.2011 12:07:53