Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
Much attention has been accorded to Location-Based Services and location tracking, a necessary component in active, trigger-based LBS applications. Tracking the location of a larg...
An active XML (AXML) document contains tags representing calls to Web services. Therefore, retrieving its contents consists in materializing its data elements by invoking the embe...
The size of supercomputers in numbers of processors is growing exponentially. Today’s largest supercomputers have upwards of a hundred thousand processors and tomorrow’s may ha...
Mustafa M. Tikir, Michael Laurenzano, Laura Carrin...
Twig pattern matching (TPM) is the core operation of XML query processing. Existing approaches rely on either efficient data structures or novel labeling/indexing schemes to reduce...