1000 search results - page 122 / 200 » Provenance for Aggregate Queries |
ICNP
2000
IEEE
14 years 2 months ago
2000
IEEE
A scalable object location service can enable users to search for various objects in an environment where many small, networked devices are attached to objects. We investigate two...
SIGMOD
1996
ACM
14 years 2 months ago
1996
ACM
Decision support applications involve complex queries on very large databases. Since response times should be small, query optimization is critical. Users typically view the data ...
DAWAK
2010
Springer
13 years 11 months ago
2010
Springer
Spatial data warehouses (SDW) enable analytical multidimensional queries together with spatial analysis. Mainly, three operations are related to SDW query processing performance: (...
VLDB
2007
ACM
14 years 10 months ago
2007
ACM
The modeling of high level semantic events from low level sensor signals is important in order to understand distributed phenomena. For such content-modeling purposes, transformat...
VLDB
2000
ACM
14 years 1 months ago
2000
ACM
Approximate query answering systems provide very fast alternatives to OLAP systems when applications are tolerant to small errors in query answers. Current sampling-based approach...