The problem of rewriting queries using views has received significant attention because of its applications in a wide variety of datamanagement problems. For select-project-join SQ...
Foto N. Afrati, Rada Chirkova, Manolis Gergatsouli...
Recent advances in hardware technology have resulted in the ability to collect and process large amounts of data. In many cases, the collection of the data is a continuous process ...
We study the performance issue of the “iterative” record linkage (RL) problem, where match and merge operations may occur together in iterations until convergence emerges. We ...
Existing hierarchical summarization techniques fail to provide synopses good in terms of relative-error metrics. This paper introduces multiplicative synopses: a summarization par...
Emergencies happen frequently and handling them effectively is necessary. In many cases, emergencies are treated by a static procedure, without considering the requirements of th...