7576 search results - page 71 / 1516 » On Querying Ontologies and Databases |
ICDT
2003
ACM
14 years 2 months ago
2003
ACM
In an on-line statistical database, the query system should leave unanswered queries asking for sums that could lead to the disclosure of confidential data. To check that, every su...
ICDE
2006
IEEE
14 years 10 months ago
2006
IEEE
In this paper, we present the ArchIS system that achieves full-functionality transaction-time databases without requiring temporal extensions in XML or database standards. ArchIS&...
SAC
2006
ACM
14 years 2 months ago
2006
ACM
We present a framework and an application for semanticbased retrieval of images. Our approach adopts a two-level ontology structure in a subset of OWL-DL. In the core ontology onl...
KSEM
2010
Springer
13 years 6 months ago
2010
Springer
One criterion for the well-formedness of ontologies is that their hierarchical structure forms a lattice. Formal Concept Analysis (FCA) has been used as a technique for assessing ...
KES
2010
Springer
13 years 7 months ago
2010
Springer
Information, its gathering, sharing, and storage, is growing at a very rapid rate. Information turned into knowledge leads to sensemaking. Ontologies, and their representations in ...