This paper presents NGS, a framework providing fully automated support for cross-domain queries. In particular, NGS (a) integrates different kinds of services (search engines, web services, and wrapped web pages) into a global ontology, i.e., a unified view of the concepts supported by the available services, (b) covers query formulation aspects over the global ontology, and query rewriting in terms of the actual services, and (c) offers several optimization opportunities leveraging the characteristics of the different services at hand, based on several different cost metrics.
Braga, D., Calvanese, D., Campi, A., Ceri, S., Daniel, F., Martinenghi, D., et al. (2008). NGS: A new generation search engine supporting cross domain queries. In SEBD 2008 - Proceedings of the 16th Italian Symposium on Advanced Database Systems (pp.342-349).
NGS: A new generation search engine supporting cross domain queries
Martinenghi D.;Merialdo P.;Torlone R.
2008-01-01
Abstract
This paper presents NGS, a framework providing fully automated support for cross-domain queries. In particular, NGS (a) integrates different kinds of services (search engines, web services, and wrapped web pages) into a global ontology, i.e., a unified view of the concepts supported by the available services, (b) covers query formulation aspects over the global ontology, and query rewriting in terms of the actual services, and (c) offers several optimization opportunities leveraging the characteristics of the different services at hand, based on several different cost metrics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
