191 search results - page 13 / 39 » Online Aggregation over Trees |
MDM
2007
Springer
14 years 1 months ago
2007
Springer
This work tackles the problem of answer-aggregation for continuous spatio-temporal range queries in distributed settings. We assume a grid-like coverage of the spatial universe of...
CDC
2009
IEEE
14 years 12 days ago
2009
IEEE
Abstract— We study the problem of maximizing the aggregated revenue in sensor networks with deadline constraints. Our model is that of a sensor network that is arranged in the fo...
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
We present STAR, a self-tuning algorithm that adaptively sets numeric precision constraints to accurately and efficiently answer continuous aggregate queries over distributed data...
WWW
2007
ACM
14 years 8 months ago
2007
ACM
The availability of map interfaces and location-aware devices makes a growing amount of unstructured, geo-referenced information available on the Web. In particular, over twelve m...
WWW
2006
ACM
14 years 8 months ago
2006
ACM
We consider the problem of visualizing the evolution of tags within the Flickr (flickr.com) online image sharing community. Any user of the Flickr service may append a tag to any ...