P2P Schema-Mapping over Network-bound XML Data

Carmela Comito, Domenico Talia
2008 2008 Fourth International Conference on Semantics, Knowledge and Grid  
The rise in availability of web-based data sources has led to new challenges in data integration systems for obtaining decentralized, wide-scale sharing of data preserving semantics. In this paper we present a framework for integrating heterogeneous XML data sources distributed over a large-scale, highly dynamic network of autonomous nodes. We propose a query reformulation algorithm to combine and query distributed XML databases through a decentralized point-to-point mediation process among the
more » ... n process among the different data sources by using P2P schema mappings. More precisely, our integration model is based on path-to-path mappings, using the XPath language. We demonstrate the utility and scalability of our ideas and algorithms with a detailed set of experiments. Finally, we present our experience implementing the above cited query reformulation algorithm as a Web service within the GDIS system, a service-based Grid architecture. We have evaluated GDIS on several real world schemas with promising results. Fourth International Conference on Semantics, Knowledge and Grid 978-0-7695-3401-5/08 $25.00
doi:10.1109/skg.2008.30 dblp:conf/skg/ComitoT08 fatcat:kuojgzvfhbh6fanuluptpygiki