189 search results - page 22 / 38 » Approximating predicates and expressive queries on probabili... |
SIGMOD
2005
ACM
14 years 8 months ago
2005
ACM
Statistical estimation and approximate query processing have become increasingly prevalent applications for database systems. However, approximation is usually of little use witho...
VLDB
2002
ACM
13 years 8 months ago
2002
ACM
All existing proposals for querying XML (e.g., XQuery) rely on a pattern-specification language that allows (1) path navigation and branching through the label structure of the XM...
ICDE
2008
IEEE
14 years 10 months ago
2008
IEEE
Supporting top-k queries over distributed collections of schemaless XML data poses two challenges. While XML supports expressive query languages such as XPath and XQuery, these la...
ICDE
2003
IEEE
14 years 10 months ago
2003
IEEE
In moving object environments, it is infeasible for the database tracking the movement of objects to store the exact locations of objects at all times. Typically, the location of a...
PSSE
2004
Springer
14 years 1 months ago
2004
Springer
“demonic” nondeterminism, representing abstraction from (or ignorance of) which of two program fragments will be executed. By introducing probabilistic nondeterminism into GCL,...