The use of XML has become pervasive. It is used in a range of data storage and data exchange applications. In many cases such XML data is captured from users via forms or transform...
When hosting XML information on relational backends, a mapping has to be established between the schemas of the information source and the target storage repositories. A rich body ...
Abstract. The paper presents INFOMIX a successful application of ASP technology to the domain of Data Integration. INFOMIX is a novel system which supports powerful information int...
Nicola Leone, Thomas Eiter, Wolfgang Faber, Michae...
Querying non-conventional data is recognized as a major issue in new environments and applications such as those occurring in pervasive computing. A key issue is the ability to qu...
Most of work on partial information in databases asks which operations of standard languages, like relational algebra, can still be performed correctly in the presence of nulls. In...