958 search results - page 44 / 192 » The Time Index: An Access Structure for Temporal Data |
INFSOF
2007
13 years 8 months ago
2007
Although spatio-temporal databases have received considerable attention recently, there has been little work on processing range sum queries on the historical records of moving ob...
TIME
2005
IEEE
14 years 2 months ago
2005
IEEE
This paper presents an XML-based approach to implementing the parametric model of temporal databases. In the parametric model, attribute values are functions of time and the entir...
VLDB
1999
ACM
14 years 23 days ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
WOWMOM
2005
ACM
14 years 2 months ago
2005
ACM
The IEEE 802.11e extensions for QoS support in WLAN define the transmission opportunity (TXOP) concept, in order to limit the channel holding times of the contending stations in ...
MOBISYS
2009
ACM
14 years 9 months ago
2009
ACM
The extraction of temporal characteristics from sensor data streams can reveal important properties about the sensed events. Knowledge of temporal characteristics in applications ...