A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different site...
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...
Interactive configuration is the concept of assisting a user in selecting values for parameters that respect given constraints. It was originally inspired by the product configurat...
Peter Tiedemann, Tarik Hadzic, Thomas Stuart Henne...
The monitoring and visualization of enterprise-wide and cross-organizational business processes is an important, but also very complex task. The information needed for visualizing...
Continuous queries are used to monitor changes to time varying data and to provide results useful for online decision making. Typically a user desires to obtain the value of some ...