Current Web Engineering methods develop "closed" web applications from conceptual models. This fact makes difficult the integration and the interoperability of different ...
Victoria Torres, Joan Fons, Oscar Asensi, Vicente ...
We consider the problem of a user querying semistructured data such as RDF without knowing its structure. In these circumstances, it is helpful if the querying system can perform a...
Carlos A. Hurtado, Alexandra Poulovassilis, Peter ...
While much work has addressed the problem of maintaining materialized views, the important question of optimizing queries in the presence of materialized views has not been resolv...
Surajit Chaudhuri, Ravi Krishnamurthy, Spyros Pota...
While the information published in the form of XML-compliant documents keeps fast mounting up, efficient and effective query processing and optimization for XML have now become mor...
In order to realize the idea of the Semantic Web, many tools and technologies need to be developed, including a query language. One of the most important technologies that creates ...