Three join algorithms are evaluated in an environment with distributed main-memory based mediators and data sources. A streamed ship-out join ships bulks of tuples to a mediator ne...
One potential problem of active database applications is the non-termination of rules. Although algorithms have been proposed to detect non-termination, almost all provide a conser...
In this paper we address an issue common in the frame of WWW, namely information entities that present di erent facets under di erent contexts (or worlds). Handling such multifacet...
Due to the rapid growth of the Web, there is an increasing need for methodologies that support the design of Web-based Information Systems (WIS). After investigating the applicatio...
Flavius Frasincar, Geert-Jan Houben, Richard Vdovj...
In this paper, the most appropriate buffer structure, page replacement policy and buffering scheme for closest pairs queries, where both spatial datasets are stored in R-trees, are...
Antonio Corral, Michael Vassilakopoulos, Yannis Ma...