Due to the ability of graphs to represent more generic and more complicated relationships among different objects, graph mining has played a significa...

Large amounts of (often valuable) information are stored in web-accessible text databases. "Metasearchers" provide unified interfaces to query multipl...

In an uncertain database, every object o is associated with a probability density function, which describes the likelihood that o appears at each posi...

The unique characteristics of scientific data and queries cause traditional indexing techniques to perform poorly on scientific workloads, occupy exce...

Most research work on optimization of nested queries focuses on aggregate subqueries. In this article, we show that existing approaches are not adequa...