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» Preferences for Queries in a Mediator Approach
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WEBDB
1999
Springer
110views Database» more  WEBDB 1999»
13 years 9 months ago
A Framework for Navigation-Driven Lazy Mediators
We propose a framework for navigation-driven evaluation of virtual mediated views. The approach is based on lazy mediators that translate incoming client navigations on a virtual ...
Bertram Ludäscher, Yannis Papakonstantinou, P...
ADBIS
2004
Springer
93views Database» more  ADBIS 2004»
13 years 10 months ago
Query Rewriting Using Views in a Typed Mediator Environment
Abstract. Query rewriting method is proposed for the heterogeneous information integration infrastructure formed by the subject mediator environment. Local as View (LAV) approach t...
Leonid A. Kalinichenko, Dmitry O. Martynov, Sergey...
ECAI
2000
Springer
13 years 9 months ago
Repairing Queries in a Mediator Approach
In this paper, we study unsatisfiable queries posed to a mediator in an information integration system and expressed in the logical formalism of the information integration system...
Alain Bidault, Christine Froidevaux, Brigitte Safa...
EDBT
2000
ACM
13 years 8 months ago
Navigation-Driven Evaluation of Virtual Mediated Views
The MIX mediator systems incorporates a novel framework for navigation-driven evaluation of virtual mediated views. Its architecture allows the on-demand computation of views and q...
Bertram Ludäscher, Yannis Papakonstantinou, P...
VLDB
2005
ACM
113views Database» more  VLDB 2005»
14 years 5 months ago
Mediators over taxonomy-based information sources
Abstract. We propose a mediator model for providing integrated and unified access to multiple taxonomy-based sources. Each source comprises a taxonomy and a database that indexes o...
Yannis Tzitzikas, Nicolas Spyratos, Panos Constant...