830 search results - page 120 / 166 » Approximation power of directionlets |
VLDB
2007
ACM
14 years 9 months ago
2007
ACM
Similarity-based search over time-series databases has been a hot research topic for a long history, which is widely used in many applications, including multimedia retrieval, dat...
MOBIHOC
2008
ACM
14 years 8 months ago
2008
ACM
In many emerging applications, data streams are monitored in a network environment. Due to limited communication bandwidth and other resource constraints, a critical and practical...
COMPGEOM
2006
ACM
14 years 2 months ago
2006
ACM
We consider a class of geometric facility location problems in which the goal is to determine a set X of disks given by their centers (tj) and radii (rj) that cover a given set of...
SENSYS
2004
ACM
14 years 2 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...
FOCS
1989
IEEE
14 years 26 days ago
1989
IEEE
In this paper, Boolean functions in ,4C0 are studied using harmonic analysis on the cube. The main result is that an ACO Boolean function has almost all of its “power spectrum”...