Sciweavers

Share
TSC
2010

A Query Rewriting Approach for Web Service Composition

8 years 3 months ago
A Query Rewriting Approach for Web Service Composition
Data-Providing (DP) services allow query-like access to organizations' data via web services. The invocation of a DP service results in the execution of a query over data sources. In most cases, users' queries require the composition of several services. In this paper, we propose a novel approach for querying and automatically composing DP services. The proposed approach largely draws from the experiences and lessons learned in the areas of service composition, ontology, and answering queries over views. First, we introduce a model for the description of DP services and specification of service-oriented queries. We model DP services as RDF views over a mediated (domain) ontology. Each RDF view contains concepts and relations from the mediated ontology to capture the semantic relationships between input and output parameters. Second, we propose query rewriting algorithms for processing queries over DP services. The query mediator automatically transforms a user's query (d...
Mahmoud Barhamgi, Djamal Benslimane, Brahim Medjah
Added 22 May 2011
Updated 22 May 2011
Type Journal
Year 2010
Where TSC
Authors Mahmoud Barhamgi, Djamal Benslimane, Brahim Medjahed
Comments (0)
books