106 search results - page 2 / 22 » Query Optimization by Predicate Move-Around |
ICDE
2006
IEEE
13 years 10 months ago
2006
IEEE
The window query model is widely used in data stream management systems where the focus of a continuous query is limited to a set of the most recent tuples. In this dissertation, ...
SIGMOD
2003
ACM
14 years 4 months ago
2003
ACM
We consider the problem of evaluating large numbers of XPath filters, each with many predicates, on a stream of XML documents. The solution we propose is to lazily construct a sin...
ICDE
2002
IEEE
14 years 6 months ago
2002
IEEE
Modern relational database systems are beginning to support ad hoc queries on mining models. In this paper, we explore novel techniques for optimizing queries that apply mining mo...
DASFAA
2006
IEEE
13 years 10 months ago
2006
IEEE
As business and enterprises generate and exchange XML data more often, there is an increasing need for searching and querying XML data. A lot of researches have been done to match ...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
Cost-based query optimizers need to estimate the selectivity of conjunctive predicates when comparing alternative query execution plans. To this end, advanced optimizers use multi...