679 search results - page 25 / 136 » Approximate Temporal Aggregation |
INFOCOM
2010
IEEE
13 years 7 months ago
2010
IEEE
— Self-monitoring the sensor statuses such as liveness, node density and residue energy is critical for maintaining the normal operation of the sensor network. When building the ...
CDC
2009
IEEE
14 years 1 months ago
2009
IEEE
— This paper addresses model reduction for a Markov chain on a large state space. A simulation-based framework is introduced to perform state aggregation of the Markov chain base...
ECIR
2003
Springer
13 years 9 months ago
2003
Springer
In this paper we present an initial study on the use of both high and low level MPEG-7 descriptions for video retrieval. A brief survey of current XML indexing techniques shows tha...
SENSYS
2004
ACM
14 years 1 months ago
2004
ACM
Wireless sensor networks offer the potential to span and monitor large geographical areas inexpensively. Sensors, however, have significant power constraint (battery life), makin...
SAC
2008
ACM
13 years 8 months ago
2008
ACM
We address aggregate queries over GIS data and moving object data, where non-spatial information is stored in a data warehouse. We propose a formal data model and query language t...