483 search results - page 28 / 97 » Evaluating Top-k Selection Queries |
DKE
2002
13 years 7 months ago
2002
An important issue in data warehouse development is the selection of a set of views to materialize in order to accelerate OLAP queries, given certain space and maintenance time co...
KAIS
2008
13 years 7 months ago
2008
Abstract. Peer-to-Peer systems have proven to be an effective way of sharing data. Modern protocols are able to efficiently route a message to a given peer. However, determining th...
ICLP
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. In this paper we describe the OnEQL system, a query engine that implements optimization techniques and evaluation strategies to speed up the evaluation time of querying a...
CIKM
2001
Springer
14 years 4 days ago
2001
Springer
In this paper we are mainly concerned with discussion of a formal model, based on the basic concept of divergence from information theory, for automatic query expansion. The basic...
AMW
2011
12 years 11 months ago
2011
The goal of this paper is to permit secure outsourced system evaluation. We propose a method for generating synthetic databases and obfuscating a workload of queries in order to pr...