2674 search results - page 86 / 535 » Data Models and Query Languages for Spatial Databases |
140
click to vote
PODS
2008
ACM
16 years 2 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
133
click to vote
EDBT
2009
ACM
15 years 9 months ago
2009
ACM
There has been an explosion of hyperlinked data in many domains, e.g., the biological Web. Expressive query languages and effective ranking techniques are required to convert this...
130
click to vote
WWW
2006
ACM
16 years 3 months ago
2006
ACM
Path expressions are the principal means of locating data in a hierarchical model. But path expressions are brittle because they often depend on the structure of data and break if...
104
click to vote
GEOINFORMATICA
2006
15 years 2 months ago
2006
Existing estimation approaches for spatial databases often rely on the assumption that data distribution in a small region is uniform, which seldom holds in practice. Moreover, the...