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» Hierarchies in a multidimensional model: From conceptual mod...
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DAWAK
2006
Springer
13 years 10 months ago
Extending Visual OLAP for Handling Irregular Dimensional Hierarchies
Comprehensive data analysis has become indispensable in a variety of environments. Standard OLAP (On-Line Analytical Processing) systems, designed for satisfying the reporting need...
Svetlana Mansmann, Marc H. Scholl
EUSFLAT
2009
120views Fuzzy Logic» more  EUSFLAT 2009»
13 years 4 months ago
A Fuzzy-Semiotic Framework for Modeling Imprecision in the Assessment of Depression
This paper presents a new framework to model an assessment process for a complex and multidimensional syndrome such as depression. Since the measurements of depression are inherent...
Mila Kwiatkowska, Krzysztof Kielan, Krzysztof Mich...
DOLAP
2006
ACM
14 years 7 days ago
Research in data warehouse modeling and design: dead or alive?
Multidimensional modeling requires specialized design techniques. Though a lot has been written about how a data warehouse should be designed, there is no consensus on a design me...
Stefano Rizzi, Alberto Abelló, Jens Lechten...
EUSFLAT
2009
142views Fuzzy Logic» more  EUSFLAT 2009»
13 years 4 months ago
Multi-Dimensional Scaling applied to Hierarchical Rule Systems
Abstract-- This paper presents an approach for visualizing highdimensional fuzzy rules arranged in a hierarchy together with the training patterns they cover. A standard multi-dime...
Thomas R. Gabriel, Kilian Thiel, Michael R. Bertho...
WSPI
2004
13 years 7 months ago
A Formal Theory of Conceptual Modeling Universals
Conceptual Modeling is a discipline of great relevance to several areas in Computer Science. In a series of papers [1,2,3] we have been using the General Ontological Language (GOL)...
Giancarlo Guizzardi, Gerd Wagner, Marten van Sinde...