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» A Case for Aggregate Networks
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DAWAK
2000
Springer
15 years 11 months ago
Applying Vertical Fragmentation Techniques in Logical Design of Multidimensional Databases
In the context of multidimensional databases implemented on relational DBMSs through star schemes, the most effective technique to enhance performances consists of materializing re...
Matteo Golfarelli, Dario Maio, Stefano Rizzi
BPM
2007
Springer
258views Business» more  BPM 2007»
15 years 10 months ago
Access Control Requirements for Processing Electronic Health Records
There is currently a strong focus worldwide on the potential of large-scale Electronic Health Record systems to cut costs and improve patient outcomes through increased efficiency....
Bandar Alhaqbani, Colin J. Fidge
DOLAP
2005
ACM
15 years 8 months ago
Parallel querying of ROLAP cubes in the presence of hierarchies
Online Analytical Processing is a powerful framework for the analysis of organizational data. OLAP is often supported by a logical structure known as a data cube, a multidimension...
Frank K. H. A. Dehne, Todd Eavis, Andrew Rau-Chapl...
FSS
2008
89views more  FSS 2008»
15 years 6 months ago
On the equivalence of some approaches to the OWA operator and RIM quantifier determination
The ordered weighted averaging (OWA) operator is a widely used aggregation method, and its determination is usually a prerequisite step in many related applications. The regular i...
Xinwang Liu, Hongwei Lou
IS
2008
15 years 6 months ago
The complexity and approximation of fixing numerical attributes in databases under integrity constraints
Consistent query answering is the problem of characterizing and computing the semantically correct answers to queries from a database that may not satisfy certain integrity constr...
Leopoldo E. Bertossi, Loreto Bravo, Enrico Francon...