320 search results - page 45 / 64 » A Theory of Spatio-Temporal Database Queries |
IDEAS
2008
IEEE
14 years 2 months ago
2008
IEEE
With more and more natural language text stored in databases, handling respective query predicates becomes very important. Optimizing queries with predicates includes (sub)string ...
SIGMOD
2009
ACM
14 years 7 months ago
2009
ACM
Nearest neighbor (NN) search in high dimensional space is an important problem in many applications. Ideally, a practical solution (i) should be implementable in a relational data...
CIKM
2009
Springer
14 years 2 months ago
2009
Springer
Score normalization is indispensable in distributed retrieval and fusion or meta-search where merging of result-lists is required. Distributional approaches to score normalization...
IDEAS
2008
IEEE
14 years 2 months ago
2008
IEEE
Data stored in a data warehouse are inherently multidimensional, but most data-pruning techniques (such as iceberg and top-k queries) are unidimensional. However, analysts need to...
DOLAP
2004
ACM
14 years 1 months ago
2004
ACM
We address the inference control problem in data cubes with some data known to users through external knowledge. The goal of inference controls is to prevent exact values of sensi...