Mediation and integration of data are significant challenges because the number of services on the Web, and heterogeneities in their data representation, continue to increase rap...
We state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits redu...
Advanced e-services require efficient, flexible, and easy-to-use workflow technology that integrates well with mainstream Internet technologies like XML and Web servers. This pape...
XML has become the most useful standard of data interchange in the web and e-business world and there is a large amount of information stored in this format. Nonetheless, a large ...
In this paper, we propose a methodology developed in the framework of the VISPO project for engineering a three-layer ontology, based on the conceptualization, integration, synthes...