The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...
In this paper, we describe the design, architecture, and the lessons learned from the implementation of a fast regular expression indexing engine FREE. FREE uses a prebuilt index ...
— Privacy, lineage, uncertainty, and security are important to many information integration efforts, and these “PLUS” properties interact in a number of complex ways. This pa...
Barbara T. Blaustein, Len Seligman, Michael Morse,...
Data mining queries are often submitted concurrently to the data mining system. The data mining system should take advantage of overlapping of the mined datasets. In this paper we ...
For GIS, SGML document servers and other highly specialized application domains, the systems integration problem is essential since the available software often is complex and wou...
Bernd Amann, Dan Vodislav, Julio Fernandes, George...