199 search results - page 13 / 40 » Quete: Ontology-Based Query System for Distributed Sources |
EDBT
1998
ACM
15 years 3 months ago
1998
ACM
Abstract. Fusion queries search for information integrated from distributed, autonomous sources over the Internet. We investigate techniques for e cient processing of fusion querie...
123
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CIKM
2010
Springer
14 years 9 months ago
2010
Springer
Schema merging is the process of consolidating multiple schemas into a unified view. The task becomes particularly challenging when the schemas are highly heterogeneous and autono...
101
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EDBTW
2004
Springer
15 years 5 months ago
2004
Springer
Many users and applications require the integration of semi-structured data from autonomous, heterogeneous Web sources. Over the last years mediator systems have emerged that use d...
119
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ICDE
2005
IEEE
15 years 5 months ago
2005
IEEE
Current federated systems deploy cost-based query optimization mechanisms; i.e., the optimizer selects a global query plan with the lowest cost to execute. Thus, cost functions in...
COLCOM
2008
IEEE
15 years 1 months ago
2008
IEEE
Abstract. Traditional workflow enactment systems and workflow design processes view the workflow as a one-time interaction with the various data sources, executing a series of step...