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ObjectGlobe:
Open Distributed Query Processing Services on the Internet
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Alfons
Kemper and Reinhard Braumandl, University of Passau
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Date: |
Wednesday,
21 March 2001, 16 hrs |
Place: |
IT
Auditorium, bdg. 31, 3-005 |
Organiser: |
L.
Pregernig, IT/CE |
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Abstract
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We
present the design of ObjectGlobe, a distributed and open query
processor for Internet data sources. The goal of the ObjectGlobe
project is to establish an open market place in which data and query
processing capabilities can be distributed and used by any kind
of Internet application. Furthermore, ObjectGlobe integrates cycle
providers (i.e., machines) which carry out query processing operators.
The overall picture is to make it possible to execute a query with
in principle unrelated query operators, cycle providers,
and data sources.
One
of the main challenges in the design of such an open system is to
ensure privacy and security. We discuss the ObjectGlobe security
requirements, show how basic components such as the optimizer and
runtime system need to be extended. Another challenge is quality
of service (QoS) management so that users can constrain the costs
and running times of their queries.
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About
the speakers:
Alfons
Kemper has been a Full Professor at the University of Passau since
1993. He received his M. Sc. and Ph. D. degrees in Computer Science
from the University of Southern California in Los Angeles in 1981
and 1984. His research concentrates on optimization of advanced
database systems and applications (e.g. data warehouses and decision-support
query processing), on distributed data base systems and query processing,
and on complex database application system performance analysis
and tuning, in particular for the SAP R/3 system. Prof. Kemper has
authored over 75 publications including three books on database
systems.
Reinhard
Braumandl (University of Passau) studied Computer Science at the
University of Passau from 1992 to 1997. Since 1997, he has been
a research assistant in the department for mathematics and computer
science at the University of Passau. He is currently pursuing the
Ph.D. degree. His research interests include query processing, performance
analysis and QoS management in object-oriented and distributed databases.
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To:
Seminar
agenda, Home of IT Division |
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