3777 search results - page 121 / 756 » Estimating the Quality of Databases |
151
click to vote
CVPR
2004
IEEE
16 years 8 months ago
2004
IEEE
We study the problem of estimating the illuminant's direction from images of textured surfaces. Given an isotropic, Gaussian random surface with constant albedo, Koenderink an...
151
click to vote
EDBT
2009
ACM
16 years 25 days ago
2009
ACM
We study the problem of estimating selectivity of approximate substring queries. Its importance in databases is ever increasing as more and more data are input by users and are in...
154
click to vote
SAC
2008
ACM
15 years 5 months ago
2008
ACM
Modern applications requiring spatial network processing pose many interesting query optimization challenges. In many cases, query processing depends on the corresponding graph si...
157
click to vote
SIGMOD
1996
ACM
15 years 10 months ago
1996
ACM
Many commercial database systems maintain histograms to summarize the contents of relations and permit efficient estimation of query result sizes and access plan costs. Although s...
159
click to vote
DEXA
2006
Springer
15 years 8 months ago
2006
Springer
Geographic information systems (GIS) must support large georeferenced data sets. Due to the size of these data sets finding exact answers to spatial queries can be very time consum...