23 search results - page 2 / 5 » Three Approximation Algorithms for Energy-Efficient Query Di... |
MOBIDE
2010
ACM
13 years 5 months ago
2010
ACM
Complex event detection over data streams has become ubiquitous through the widespread use of sensors, wireless connectivity and the wide variety of end-user mobile devices. Typic...
PODS
2008
ACM
14 years 4 months ago
2008
ACM
We study complexity and approximation of queries in an expressive query language for probabilistic databases. The language studied supports the compositional use of confidence com...
ICDE
2009
IEEE
13 years 2 months ago
2009
IEEE
Nowadays contents in Internet like weblogs, wikipedia and news sites become "live". How to notify and provide users with the relevant contents becomes a challenge. Unlike...
VLDB
2005
ACM
13 years 10 months ago
2005
ACM
This paper presents a set of algorithms for efficiently evaluating join queries over static data tables in sensor networks. We describe and evaluate three algorithms that take adv...
SENSYS
2004
ACM
13 years 10 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...