992 search results - page 67 / 199 » Dependencies to Optimize Ontology Based Data Access |
ICDCS
2007
IEEE
13 years 11 months ago
2007
IEEE
On-line decision making often involves query processing over time-varying data which arrives in the form of data streams from distributed locations. In such environments typically...
ISI
2006
Springer
13 years 7 months ago
2006
Springer
Access control mechanisms are commonly used to provide control over who may access sensitive information. However, malicious users can exploit the correlation among the data and in...
BTW
2005
Springer
14 years 1 months ago
2005
Springer
: Optimizers in modern DBMSs utilize a cost model to choose an efficient query execution plan (QEP) among all possible ones for a given query. The accuracy of the cost estimates de...
DEXA
2010
Springer
13 years 5 months ago
2010
Springer
We researched to try to find a way to reduce the cost of nearest neighbor searches in metric spaces. Many similarity search indexes recursively divide a region into subregions by u...
PPDP
2010
Springer
13 years 6 months ago
2010
Springer
Database query optimizers rely on data statistics in selecting query execution plans. Similar query optimization techniques are desirable for deductive databases and, to make this...