35 search results - page 2 / 7 » Estimating aggregates in time-constrained approximate querie... |
FTDB
2011
12 years 8 months ago
2011
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...
VLDB
2009
ACM
14 years 5 months ago
2009
ACM
We consider the problem of using sampling to estimate the result of an aggregation operation over a subset-based SQL query, where a subquery is correlated to an outer query by a NO...
FOCS
2009
IEEE
13 years 11 months ago
2009
IEEE
Abstract— Thorup and Zwick, in their seminal work, introduced the approximate distance oracle, which is a data structure that answers distance queries in a graph. For any integer...
ICDE
2009
IEEE
14 years 6 months ago
2009
IEEE
The popularity of location-based services and the need to do real-time processing on them has led to an interest in performing queries on transportation networks, such as finding s...
KDD
1999
ACM
13 years 9 months ago
1999
ACM
Efficiently answering decision support queries is an important problem. Most of the work in this direction has been in the context of the data cube. Queries are efficiently answer...