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Une approche pour la construction d'évaluateurs adaptables de requêtes

Abstract : This dissertation presents an approach for building query evaluators adapted to application requirements and the execution environment. The proposed approach considers three types of adaptation: static (at building time), personalized (when query execution starts) and dynamic (during query execution). We presented an analysis of different dimensions of a query evaluator. The main contribution of the work is a query evaluation framework named QBF (Query Broker Framework). QBF presents query functionalities in an abstracting and separating manner so as to promote their reusability and adaptability. Based on QBF, we proposed mechanisms for ensuring three types of adaptation: instantiation of QBF, personalized and interactive query evaluation. In order to validate our approach, we implemented QBF and instantiated it for building some evaluators. Through this experience, we show the advantage of the separation of query processors functionalities proposed within QBF. We also conducted some experimental evaluations of implemented mechanisms (i.e. operators, monitoring) so as to measure adaptation overheads in QBF and to assist programmers to choose appropriated components for build their query processors.
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https://tel.archives-ouvertes.fr/tel-00009482
Contributor : Tuyet-Trinh Vu <>
Submitted on : Tuesday, June 14, 2005 - 4:01:57 AM
Last modification on : Friday, November 6, 2020 - 3:53:31 AM
Long-term archiving on: : Friday, April 2, 2010 - 10:08:04 PM

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  • HAL Id : tel-00009482, version 1

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Tuyet-Trinh Vu. Une approche pour la construction d'évaluateurs adaptables de requêtes. Autre [cs.OH]. Institut National Polytechnique de Grenoble - INPG, 2005. Français. ⟨tel-00009482⟩

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