285 search results - page 43 / 57 » Optimization of Real Conjunctive Queries |
ICDE
2007
IEEE
14 years 8 months ago
2007
IEEE
Logical constraints, (e.g., 'phone numbers in toronto can have prefixes 416, 647, 905 only'), are ubiquitous in relational databases. Traditional integrity constraints, ...
CIKM
2010
Springer
13 years 5 months ago
2010
Springer
Schema merging is the process of consolidating multiple schemas into a unified view. The task becomes particularly challenging when the schemas are highly heterogeneous and autono...
JCP
2007
13 years 7 months ago
2007
Abstract— Data synopsis is a lossy compressed representation of data stored into databases that helps the query optimizer to speed up the query process, e.g. time to retrieve the...
CORR
1999
Springer
13 years 7 months ago
1999
Springer
Abstract. Nearest neighbor searching is a fundamental computational problem. A set of n data points is given in real d-dimensional space, and the problem is to preprocess these poi...
ESWS
2008
Springer
13 years 9 months ago
2008
Springer
A fundamental problem related to graph structured databases is searching for substructures. One issue with respect to optimizing such searches is the ability to estimate the freque...