Data grids, large scale web applications generating dynamic content and database service providing pose significant scalability challenges to database engines. Replication is the ...
Progressive Optimization (POP) is a technique to make query plans robust, and minimize need for DBA intervention, by repeatedly re-optimizing a query during runtime if the cardina...
Vijayshankar Raman, Volker Markl, David E. Simmen,...
In this paper, an effective content-based visual image retrieval system is presented. This system consists of two main components: visual content extraction and indexing, and quer...
In this paper, we propose an online aggregation system called COSMOS (Continuous Sampling for Multiple queries in an Online aggregation System), to process multiple aggregate quer...
Abstract. One of the fundamental problems in relational database management is the handling of the join operation. Two of the problems are: 1) finding a page access sequence which...