750 search results - page 136 / 150 » Aggregates in Possibilistic Databases |
GIS
2010
ACM
13 years 7 months ago
2010
ACM
The sensing systems that monitor physical environments rely on communication infrastructures (wired or wireless) to collect data from the sensors embedded in the environment. Howe...
ICDE
2009
IEEE
14 years 11 months ago
2009
IEEE
Temporal data analysis in data warehouses and data streaming systems often uses time decay to reduce the importance of older tuples, without eliminating their influence, on the res...
ICDE
2008
IEEE
14 years 11 months ago
2008
IEEE
Given a record set D and a query score function F, a top-k query returns k records from D, whose values of function F on their attributes are the highest. In this paper, we investi...
ICDE
2006
IEEE
14 years 11 months ago
2006
IEEE
Relational data streams and XML streams have previously provided two separate research foci, but their unified support by a single Data Stream Management System (DSMS) is very des...
ICDE
2004
IEEE
14 years 11 months ago
2004
IEEE
Twig queries represent the building blocks of declarative query languages over XML data. A twig query describes a complex traversal of the document graph and generates a set of el...