Estimation via sampling out of highly selective join queries is well known to be problematic, most notably in online aggregation. Without goal-directed sampling strategies, samples...
HECATAEUS is an open-source software tool for enabling impact prediction, what-if analysis, and regulation of relational database schema evolution. We follow a graph theoretic appr...
George Papastefanatos, Panos Vassiliadis, Alkis Si...
Previous research in real-time concurrency control mainly focuses on the schedulability guarantee of hard real-time transactions and the reducing of the miss rate of soft real-tim...
Kam-yiu Lam, Tei-Wei Kuo, Ben Kao, Tony S. H. Lee,...
: True integration of large systems requires sharing of information stored in databases beyond sharing of pure data: business rules associated with this data must be shared also. T...
Abstract. As Web service-based system integration recently became the mainstream approach to create composite services, the dependability of such systems becomes more and more cruc...