418 search results - page 3 / 84 » Optimizing Large Join Queries in Mediation Systems |
CIKM
2005
Springer
14 years 1 months ago
2005
Springer
Holistic twig join algorithms represent the state of the art for evaluating path expressions in XML queries. Using inverted indexes on XML elements, holistic twig joins move a set...
FLAIRS
1998
13 years 9 months ago
1998
ICDE
2008
IEEE
14 years 9 months ago
2008
IEEE
In this paper we address the problem of minimizing the response time of a multi-way join query using pipelined (inter-operator) parallelism, in a parallel or a distributed environ...
ADC
2009
Springer
13 years 11 months ago
2009
Springer
Efficient XML filtering has been a fundamental technique in recent Web service and XML publish/subscribe applications. In this paper, we consider the problem of filtering a contin...
PVLDB
2008
13 years 7 months ago
2008
Many commercial RDBMSs employ cost-based query optimization exploiting dynamic programming (DP) to efficiently generate the optimal query execution plan. However, optimization tim...