251 search results - page 50 / 51 » Rewriting Aggregate Queries using Description Logic |
PLDI
2010
ACM
14 years 5 months ago
2010
ACM
An ad hoc data format is any non-standard, semi-structured data format for which robust data processing tools are not available. In this paper, we present ANNE, a new kind of mark...
PODS
2008
ACM
14 years 7 months ago
2008
ACM
We present a novel definition of privacy in the framework of offline (retroactive) database query auditing. Given information about the database, a description of sensitive data, ...
KI
2002
Springer
13 years 7 months ago
2002
Springer
In the previous two decades, a number of qualitative constraint calculi have been developed, which are used to represent and reason about spatial configurations. A common property...
BIB
2006
13 years 7 months ago
2006
: In recent years, as a knowledge-based discipline, bioinformatics has moved to make its knowledge more computationally amenable. After its beginnings in the disciplines as a techn...
DEXA
2009
Springer
14 years 2 months ago
2009
Springer
Describing relational data sources (i.e. databases) by means of ontologies constitutes the foundation of most of the semantic based approaches to data access and integration. In sp...