512 search results - page 2 / 103 » Introducing the aggregate |
IJDSN
2010
13 years 2 months ago
2010
In this paper, we introduce PANEL, a position-based aggregator node election protocol for wireless sensor networks. The novelty of PANEL with respect to other aggregator node elec...
EDBT
2009
ACM
13 years 10 months ago
2009
ACM
Temporal aggregation is a crucial operator in temporal databases and has been studied in various flavors. In instant temporal aggregation (ITA) the aggregate value at time instan...
MASS
2010
13 years 5 months ago
2010
Clustering and data aggregation in wireless sensor networks improves scalability, and helps the efficient use of scarce resources. Yet, these mechanisms also introduce some securi...
EUSFLAT
2001
13 years 8 months ago
2001
Double aggregation operators are introduced and several basic properties are studied, as neutral and annihilator elements, idempotency, etc., which are illustrated by some example...
SIGMOD
2004
ACM
14 years 7 months ago
2004
ACM
Existing SQL aggregate functions present important limitations to compute percentages. This article proposes two SQL aggregate functions to compute percentages addressing such lim...