We present a formal framework for capturing the provenance of data appearing in XQuery views of XML. Building on previous work on relations and their (positive) query languages, w...
The extensible markup language (XML) has become a standard for persistent storage and data interchange via the Internet due to its openness, self-descriptiveness, and flexibility....
In a data word or a data tree each position carries a label from a finite alphabet and a data value from some infinite domain. These models have been considered in the realm of sem...
Recently XML is the standard format used for the exchange of data between information systems and is also frequently applied as a logical database model. If we use XML as a logical...
XML is a now a dominant standard for storing and exchanging information. With its increasing use in areas such as data warehousing and e-commerce, there is a rapidly growing need ...
James Bailey, Alexandra Poulovassilis, Peter T. Wo...