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Building Scalable and Smart Multimedia Applications on the Semantic Web

Information Management


Author

Dr. Michael Hausenblas
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Building Scalable and Smart
Multimedia Applications
on the Semantic Web
Michael Hausenblas
Building Scalable and Smart
Multimedia Applications
on the Semantic Web
Doctoral Thesis
at
Graz University of Technology
submitted by
Michael Hausenblas
Institute for Software Technology (IST),
Graz University of Technology
8010 Graz, Austria
and
Institute of Information Systems & Information Management (IIS),
JOANNEUM RESEARCH Forschungsges. mbH
8010 Graz, Austria
2008
c Copyright 2004--2008 by Michael Hausenblas
Abstract
The Semantic Web has become reality over the past couple of years. While certain prac-
tical topics--such as interoperability, etc.--have at least partially been addressed, scalability
and expressivity issues regarding the utilisation of multimedia metadata on the Semantic
Web are still widely neglected. However, existing Web (2.0) applications handling millions
of multimedia assets are starting to take advantage of Semantic Web technologies.
This work contributes to design decisions regarding scalable and smart multimedia ap-
plications on the Semantic Web. Based on an analysis of practical issues--stemming from
diverse projects and activities the author has participated in over the past four years--three
areas have been identified, namely (i) performance and scalability issues on the data access
level, (ii) the effective and efficient representation of multimedia content descriptions, and
(iii) the deployment of multimedia metadata on the Semantic Web. The three research areas
have as its common base the trade-off between expressivity and scalability.
We present our findings regarding scalable, yet expressive Semantic Web multimedia
applications in a number of practical settings and discuss future directions, such as "inter-
linking multimedia".
Kurzfassung
Im Laufe der letzten Jahre wurde das Semantic Web Realit¨at. Obgleich einige prakti-
sche Fragen, wie beispielsweise Interoperabilit¨at, schon teilweise behandelt wurden, sind
die Themen Skalierbarkeit und Expressivit¨at in Bezug auf die Ausn ¨utzung von Multimedia-
Metadaten im Semantic Web bislang vernachl¨assigt worden. Bestehende Web (2.0) Anwen-
dungen, die Millionen von multimedialen Inhalten handhaben, beginnen von Semantic Web
Technologien zu profitieren.
Die vorliegende Arbeit unterst ¨utzt Designentscheidungen beim Bau von multimedialen
Semantic Web Applikationen. Dabei wurden, ausgehend von einer umfassenden Analyse
praxisnaher Probleme (basierend auf Projekten bei denen der Verfasser dieser Arbeit be-
teiligt war) drei Bereiche identifiziert: Erstens, Performanz und Skalierbarkeitsfragen auf
der Datenzugriffsebene, zweitens, effiziente und effektive Repr¨asentation von Beschreibun-
gen multimedialer Inhalte, und schließlich der Gebrauch von Multimedia-Metadaten am
Semantic Web. Gemein ist den oben genannten Forschungsbereichen die Kompromissfin-
dung in Bezug auf Expressivit¨at vs. Skalierbarkeit.
In der Arbeit werden die Erkenntnisse bez ¨uglich skalierbarer und dennoch ausdrucks-
starker Semantic Web Applikationen im Multimediabereich im Rahmen einer Reihe rea-
lit¨atsnaher Aufgabenstellungen dargestellt. Schließlich werden zuk ¨unftige Entwicklungen
(wie "interlinking multimedia") diskutiert.
I hereby certify that the work presented in this thesis is my own
and that work performed by others is appropriately cited.
Michael Hausenblas, June 2008.
Excerpt: 11 of 278 pages -  scroll top


Description

Title:
Building Scalable and Smart Multimedia Applications on the Semantic Web
Event:
None
Author:
Dr. Michael Hausenblas
Year:
2009
Pages:
278
Archive No.:
V126801
ISBN (eBook):
978-3-640-32418-7
ISBN (Book):
978-3-640-79158-3
DOI:
10.3239/9783640324187
File size:
18751 KB
Language:
English

Tags:
multimedia Web of Data Semantic Web linked data RDF URI ramm.x

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Dr. Michael Hausenblas, 2009, Building Scalable and Smart Multimedia Applications on the Semantic Web, Munich, GRIN Publishing GmbH

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