294 search results - page 29 / 59 » Approximate query processing using wavelets |
CIDR
2009
13 years 8 months ago
2009
We present the design and development of a data stream system that captures data uncertainty from data collection to query processing to final result generation. Our system focuse...
SIGMOD
2001
ACM
14 years 7 months ago
2001
ACM
Approximating the joint data distribution of a multi-dimensional data set through a compact and accurate histogram synopsis is a fundamental problem arising in numerous practical ...
ICDE
2006
IEEE
14 years 9 months ago
2006
IEEE
Wireless sensor networks generate a vast amount of data. This data, however, must be sparingly extracted to conserve energy, usually the most precious resource in battery-powered ...
GIS
2007
ACM
14 years 8 months ago
2007
ACM
In this paper, we present an original network graph embedding to speed-up distance-range and k-nearest neighbor queries in (weighted) graphs. Our approach implements the paradigm ...
SIGMOD
2008
ACM
14 years 7 months ago
2008
ACM
Uncertain data is inherent in a few important applications such as environmental surveillance and mobile object tracking. Top-k queries (also known as ranking queries) are often n...