389 search results - page 4 / 78 » A Framework for the Investigation of Aggregate Functions in ... |
TCS
1998
13 years 6 months ago
1998
We introduce a new constraint domain, aggregation constraints, that is useful in database query languages, and in constraint logic programming languages that incorporate aggregate...
ICDM
2007
IEEE
14 years 27 days ago
2007
IEEE
Data security is a critical issue for many organizations. Sensitive data must be protected from both inside and outside attackers. Access control policies and related mechanisms h...
SIGMOD
2006
ACM
14 years 6 months ago
2006
ACM
This paper presents a principled framework for efficient processing of ad-hoc top-k (ranking) aggregate queries, which provide the k groups with the highest aggregates as results....
ICDE
2005
IEEE
14 years 8 months ago
2005
IEEE
Resource Description Framework (RDF) is a rapidly expanding web standard. RDF databases attempt to track the massive amounts of web data and services available. In this paper, we ...
ER
2010
Springer
13 years 5 months ago
2010
Springer
Multidimensional models are at the core of data warehouse systems, since they allow decision makers to early define the relevant information and queries that are required to satis...