SkyQuery: A WebService Approach to Federate Databases

Traditional science searched for new objects and phenomena that led to discoveries. Tomorrow's science will combine together the large pool of information in scientific archives and make discoveries. Scienthists are currently keen to federate together the existing scientific databases. The majo...

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Published in:arXiv.org 2002-11
Main Authors: Malik, Tanu, Szalay, Alex S, Budavari, Tamas, Thakar, Ani R
Format: Article
Language:English
Subjects:
Archives & records
Astronomy
Computer architecture
Computer networks
Distributed processing
Federations
Task complexity
Web services
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Szalay, Alex S
Budavari, Tamas
Thakar, Ani R
description Traditional science searched for new objects and phenomena that led to discoveries. Tomorrow's science will combine together the large pool of information in scientific archives and make discoveries. Scienthists are currently keen to federate together the existing scientific databases. The major challenge in building a federation of these autonomous and heterogeneous databases is system integration. Ineffective integration will result in defunct federations and under utilized scientific data. Astronomy, in particular, has many autonomous archives spread over the Internet. It is now seeking to federate these, with minimal effort, into a Virtual Observatory that will solve complex distributed computing tasks such as answering federated spatial join queries. In this paper, we present SkyQuery, a successful prototype of an evolving federation of astronomy archives. It interoperates using the emerging Web services standard. We describe the SkyQuery architecture and show how it efficiently evaluates a probabilistic federated spatial join query.
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subjects Archives & records
Astronomy
Computer architecture
Computer networks
Distributed processing
Federations
Task complexity
Web services
title SkyQuery: A WebService Approach to Federate Databases
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