6004 search results - page 61 / 1201 » Parallelizing query optimization |
IDEAS
2010
IEEE
13 years 7 months ago
2010
IEEE
Even though an effective cost-based query optimizer is of utmost importance for the efficient evaluation of XQuery expressions in native XML database systems, such a component is...
VLDB
1999
ACM
14 years 1 months ago
1999
ACM
XML is an emerging standard for data representation and exchange on the World-Wide Web. Due to the nature of information on the Web and the inherent flexibility of XML, we expect...
ICDE
2006
IEEE
14 years 2 months ago
2006
IEEE
We consider the problem of query optimization in distributed stream based systems where multiple continuous queries may be executing simultaneously. In such systems, distribution ...
PODS
2008
ACM
14 years 9 months ago
2008
ACM
We consider a fundamental flow maximization problem that arises during the evaluation of multiple overlapping queries defined on a data stream, in a heterogenous parallel environm...
ADBIS
2004
Springer
14 years 2 months ago
2004
Springer
In this paper we consider concurrent execution of multiple data mining queries in the context of discovery of frequent itemsets. If such data mining queries operate on similar part...