251 search results - page 13 / 51 » Processing Multiple Aggregation Queries in Geo-Sensor Networ... |
ICDCS
2007
IEEE
14 years 1 months ago
2007
IEEE
When there are multiple queries posed to the resourceconstrained wireless sensor network, it is critical to process them efficiently. In this paper, we propose a Two-Tier Multipl...
WAIM
2007
Springer
14 years 25 days ago
2007
Springer
We propose DHCS, a method of distributed, hierarchical clustering and summarization for online data analysis and mining in sensor networks. Different from the acquisition and aggre...
SIGMOD
2005
ACM
14 years 8 days ago
2005
ACM
One of the most powerful features of SQL is the use of nested queries. Most research work on the optimization of nested queries focuses on aggregate subqueries. However, the solut...
DEXAW
2004
IEEE
13 years 10 months ago
2004
IEEE
Database-like query processing over a network of sensors has become an attractive paradigm for building sensor applications. A sensor query is characterized by data streams among ...
VLDB
2004
ACM
14 years 2 days ago
2004
ACM
We consider the problem of resource sharing when processing large numbers of continuous queries. We specifically address sliding-window aggregates over data streams, an important...