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WOLLIC
2010
Springer
14 years 2 months ago
On the Role of the Complementation Rule for Data Dependencies over Incomplete Relations
Recently, an axiomatization for functional dependencies (FDs) and multivalued dependencies (MVDs) has been established where arbitrary attributes can be specified as NOT NULL. Tha...
Flavio Ferrarotti, Sven Hartmann, Sebastian Link
DEM
2001
Springer
198views GIS» more  DEM 2001»
14 years 1 months ago
Modeling of Ecosystems as a Data Source for Real-Time Terrain Rendering
With the advances in rendering hardware, it is possible to render very complex scenes in real-time. In general, computers do not have enough memory to store all the necessary infor...
Johan Hammes
SOCO
2008
Springer
13 years 8 months ago
Compositional Modeling for Data-Centric Business Applications
Data-centric business applications comprise an important class of distributed systems that includes on-line stores, document management systems, and patient portals. However, their...
Ethan K. Jackson, Wolfram Schulte
WECWIS
2009
IEEE
177views ECommerce» more  WECWIS 2009»
14 years 3 months ago
Business Rules for Concurrent E-commerce Transactions
Business rules are a cornerstone of the consistency management of e-commerce data. The concurrency of transactions by multiple customers of e-commerce services (e.g., seat reserva...
Hendrik Decker
VLDB
2001
ACM
100views Database» more  VLDB 2001»
14 years 1 months ago
VXMLR: A Visual XML-Relational Database System
We demonstrate a visual based XML-Relational database system where XML data is managed by commercial RDBMS. A query interface enables users to form path expression based queries a...
Aoying Zhou, Hongjun Lu, Shihui Zheng, Yuqi Liang,...