2338 search results - page 325 / 468 » Using UML to model relational database operations |
TKDE
2012
11 years 11 months ago
2012
— We present a query formulation language (called MashQL) in order to easily query and fuse structured data on the web. The main novelty of MashQL is that it allows people with l...
EDBT
2012
ACM
11 years 11 months ago
2012
ACM
Query optimization in RDF Stores is a challenging problem as SPARQL queries typically contain many more joins than equivalent relational plans, and hence lead to a large join orde...
CPAIOR
2009
Springer
14 years 3 months ago
2009
Springer
In this abstract, we present a rule-based modelling language for constraint programming, called Rules2CP [1], and a library PKML for modelling packing problems. Unlike other modell...
CCS
2006
ACM
14 years 21 days ago
2006
ACM
The usage control (UCON) model was introduced as a unified approach to capture a number of extensions for traditional access control models. While the policy specification flexibi...
ICDT
2009
ACM
14 years 9 months ago
2009
ACM
The need to manage diverse information sources has triggered the rise of very loosely structured data models, known as "dataspace models." Such information management sy...