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2009 IEEE/ACS International Conference on Computer Systems and Applications
Query processing in the WASSIT mediation framework
Rabat, Morocco
May 10-May 13
ISBN: 978-1-4244-3807-5
ASCII Text
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Faouzia Wadjinny, Lahcen Gounbark, Laila Benhlima, Dalila Chiadmi, Ahmed Moujane, "Query processing in the WASSIT mediation framework," Computer Systems and Applications, ACS/IEEE International Conference on, pp. 595-602, 2009 IEEE/ACS International Conference on Computer Systems and Applications, 2009.
 
 
BibTex
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@article{ 10.1109/AICCSA.2009.5069387,
author = {Faouzia Wadjinny and Lahcen Gounbark and Laila Benhlima and Dalila Chiadmi and Ahmed Moujane},
title = {Query processing in the WASSIT mediation framework},
journal ={Computer Systems and Applications, ACS/IEEE International Conference on},
volume = {0},
year = {2009},
isbn = {978-1-4244-3807-5},
pages = {595-602},
doi = {http://doi.ieeecomputersociety.org/10.1109/AICCSA.2009.5069387},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - CONF
JO - Computer Systems and Applications, ACS/IEEE International Conference on
TI - Query processing in the WASSIT mediation framework
SN - 978-1-4244-3807-5
SP595
EP602
A1 - Faouzia Wadjinny,
A1 - Lahcen Gounbark,
A1 - Laila Benhlima,
A1 - Dalila Chiadmi,
A1 - Ahmed Moujane,
PY - 2009
VL - 0
JA - Computer Systems and Applications, ACS/IEEE International Conference on
ER -
 
Faouzia Wadjinny, Computer Sciences Department, Mohammadia Engineering School, BP 765, Rabat Agdal, MOROCCO
Lahcen Gounbark, Computer Sciences Department, Mohammadia Engineering School, BP 765, Rabat Agdal, MOROCCO
Laila Benhlima, Computer Sciences Department, Mohammadia Engineering School, BP 765, Rabat Agdal, MOROCCO
Dalila Chiadmi, Computer Sciences Department, Mohammadia Engineering School, BP 765, Rabat Agdal, MOROCCO
Ahmed Moujane, Computer Sciences Department, Mohammadia Engineering School, BP 765, Rabat Agdal, MOROCCO
As more and more data is available through the Web, mediation of information from multiple autonomous and heterogeneous data sources becomes a crucial task for future Web information systems. We describe the features of our mediation framework WASSIT (frameWork d'intégrAtion de reSSources de données par la médIaTion), which provides the user with an integrated view of the underlying data sources. In particular, we describe the high level architecture of WASSIT and present how user's queries are processed focusing on query rewriting and query optimization. For query rewriting, we use OWL ontology to describe the mappings between global schemas and local schemas and propose an approach to generate query execution plans for XQuery queries. To optimize queries over sources with limited query capabilities, we adopt a formalism that describes data sources capabilities and propose an algorithm for producing equivalent query plans. We present also our cost model for choosing the optimal plan.
Citation:
Faouzia Wadjinny, Lahcen Gounbark, Laila Benhlima, Dalila Chiadmi, Ahmed Moujane, "Query processing in the WASSIT mediation framework," aiccsa, pp.595-602, 2009 IEEE/ACS International Conference on Computer Systems and Applications, 2009
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