191 search results - page 19 / 39 » Online Aggregation over Trees |
ICC
2007
IEEE
14 years 2 months ago
2007
IEEE
We propose a Polynomial-based scheme that addresses the problem of Event Region Detection (PERD) for wireless sensor networks (WSNs). Nodes of an aggregation tree perform function ...
ICRA
2008
IEEE
14 years 2 months ago
2008
IEEE
— We present heuristic algorithms for pruning large sets of candidate paths or trajectories down to smaller subsets that maintain desirable characteristics in terms of overall re...
KDD
2008
ACM
14 years 8 months ago
2008
ACM
Closed patterns are powerful representatives of frequent patterns, since they eliminate redundant information. We propose a new approach for mining closed unlabeled rooted trees a...
ICDE
2009
IEEE
14 years 9 months ago
2009
IEEE
In many applications, we need to analyze a large number of time series. Segments of time series demonstrating dominating advantages over others are often of particular interest. In...
DAWAK
2006
Springer
13 years 11 months ago
2006
Springer
Comprehensive data analysis has become indispensable in a variety of environments. Standard OLAP (On-Line Analytical Processing) systems, designed for satisfying the reporting need...