489 search results - page 77 / 98 » Query Selectivity Estimation via Data Mining |
VLDB
2004
ACM
15 years 5 months ago
2004
ACM
When query optimizers erroneously assume that database columns are statistically independent, they can underestimate the selectivities of conjunctive predicates by orders of magni...
86
Voted
XSYM
2004
Springer
15 years 5 months ago
2004
Springer
A key step in the optimization of declarative queries over XML data is estimating the selectivity of path expressions, i.e., the number of elements reached by a specific navigatio...
108
Voted
PODS
2002
ACM
15 years 11 months ago
2002
ACM
Data Warehousing and OLAPapplications typically view data as having multiple logical dimensions e.g., product, location with natural hierarchies de ned on each dimension. OLAP que...
188
click to vote
ICDE
2008
IEEE
16 years 1 months ago
2008
IEEE
The problem of privacy-preserving data mining has been studied extensively in recent years because of the increased amount of personal information which is available to corporation...
106
click to vote
VIS
2004
IEEE
16 years 27 days ago
2004
IEEE
Diffusion Tensor Imaging (DTI) is a magnetic resonance imaging method that can be used to measure local information about the structure of white matter within the human brain. Com...