429 search results - page 54 / 86 » Query Planning for Continuous Aggregation Queries over a Net... |
EDBT
2009
ACM
13 years 11 months ago
2009
ACM
With the amount of data in current data warehouse databases growing steadily, random sampling is continuously gaining in importance. In particular, interactive analyses of large d...
GIS
2008
ACM
14 years 8 months ago
2008
ACM
We present SenseWeb, an open and scalable infrastructure for sharing and geocentric exploration of sensor data streams. SenseWeb allows sensor owners to share data streams across ...
SIGMOD
2003
ACM
14 years 7 months ago
2003
ACM
Increasingly pervasive networks are leading towards a world where data is constantly in motion. In such a world, conventional techniques for query processing, which were developed...
PODS
2004
ACM
14 years 7 months ago
2004
ACM
Data exchange is the problem of taking data structured under a source schema and creating an instance of a target schema. Given a source instance, there may be many solutions ? ta...
GIS
2010
ACM
13 years 6 months ago
2010
ACM
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...