DMCA
Data integration and query reformulation in service-based grids (2005)
| Venue: | In Proc. of the 1st CoreGRID Integration Workshop |
| Citations: | 4 - 0 self |
BibTeX
@INPROCEEDINGS{Comito05dataintegration,
author = {Carmela Comito and Domenico Talia and Anastasios Gounaris and Rizos Sakellariou},
title = {Data integration and query reformulation in service-based grids},
booktitle = {In Proc. of the 1st CoreGRID Integration Workshop},
year = {2005},
pages = {2005}
}
Share
 |
 |
 |
 |
||
OpenURL
Abstract
This paper describes the XMAP data integration framework and query reformulation algorithm, provides insights into the performance of the algorithm, and about its use in implementing query processing services. Here we propose an approach for data integration-enabled distributed query processing on Grids by embedding the XMAP reformulation algorithm within the OGSA-DQP distributed query processor. To this aim we exploit the OGSA-DQP XML representation of relational schemas by applying the XMAP algorithm on them. Moreover, we introduce a technique to rewrite an XPath query into an equivalent OQL one. Finally, the paper presents a roadmap for the integration system implementation aiming at constructing an extended set of services that will allow users to submit queries over a single database and receive the results from multiple databases that are semantically con'elated with the former one. Keywords: XML databases, semantic data integration, schema mappings, distributed query
Keyphrases
service-based grid query reformulation data integration data integration-enabled distributed query processing single database relational schema equivalent oql one former one xmap reformulation algorithm schema mapping ogsa-dqp xml representation integration system implementation xpath query xmap algorithm xml database query processor xmap data integration framework query reformulation algorithm multiple database query processing service semantic data integration extended set
