Sciweavers

38 search results - page 2 / 8
» Estimating Range Queries Using Aggregate Data with Integrity...
Sort
View
FTDB
2011
98views more  FTDB 2011»
12 years 8 months ago
Secure Distributed Data Aggregation
We present a survey of the various families of approaches to secure aggregation in distributed networks such as sensor networks. In our survey, we focus on the important algorithm...
Haowen Chan, Hsu-Chun Hsiao, Adrian Perrig, Dawn S...
PODS
1999
ACM
151views Database» more  PODS 1999»
13 years 9 months ago
Exact and Approximate Aggregation in Constraint Query
We investigate the problem of how to extend constraint query languages with aggregate operators. We deal with standard relational aggregation, and also with aggregates speci c to ...
Michael Benedikt, Leonid Libkin
TKDE
2008
234views more  TKDE 2008»
13 years 4 months ago
Probabilistic Group Nearest Neighbor Queries in Uncertain Databases
The importance of query processing over uncertain data has recently arisen due to its wide usage in many real-world applications. In the context of uncertain databases, previous wo...
Xiang Lian, Lei Chen 0002
DMDW
2001
91views Management» more  DMDW 2001»
13 years 6 months ago
On Estimating the Cardinality of Aggregate Views
Accurately estimating the cardinality of aggregate views is crucial for logical and physical design of data warehouses. While the warehouse is under development and data are not a...
Paolo Ciaccia, Matteo Golfarelli, Stefano Rizzi
CORR
2011
Springer
175views Education» more  CORR 2011»
12 years 12 months ago
A Novel Probabilistic Pruning Approach to Speed Up Similarity Queries in Uncertain Databases
Abstract— In this paper, we propose a novel, effective and efficient probabilistic pruning criterion for probabilistic similarity queries on uncertain data. Our approach support...
Thomas Bernecker, Tobias Emrich, Hans-Peter Kriege...