127 search results - page 15 / 26 » Conjunctive Query Containment under Access Limitations |
90
Voted
VLDB
2004
ACM
15 years 2 months ago
2004
ACM
In data stream applications, data arrive continuously and can only be scanned once as the query processor has very limited memory (relative to the size of the stream) to work with...
DEXA
2005
Springer
15 years 3 months ago
2005
Springer
In relational database systems a combination of privileges and views is employed to limit a user’s access and to hide non-public data. The data privacy problem is to decide wheth...
ICDE
2005
IEEE
15 years 3 months ago
2005
IEEE
Various index structures have been proposed to speed up the evaluation of XML path expressions. However, existing XML path indices suffer from at least one of three limitations: ...
BMCBI
2008
14 years 9 months ago
2008
Background: The most renowned biological ontology, Gene Ontology (GO) is widely used for annotations of genes and gene products of different organisms. However, there are shortcom...
EDBT
2010
ACM
15 years 26 days ago
2010
ACM
Data mining is increasingly performed by people who are not computer scientists or professional programmers. It is often done as an iterative process involving multiple ad-hoc tas...