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GI
1998
Springer
13 years 11 months ago
An Efficient Strategy for Tiling Multidimensional OLAP Data Cubes
Computing aggregates over selected categories of multidimensional discrete data (MDD) cubes is the core operation of many on-line analytical processing (OLAP) systems. In order to...
Paolo Marques, Paula Furtado, Peter Baumann
GI
2001
Springer
13 years 12 months ago
DOL: An Interoperable Document Server
We describe the design and experiences gained with the database- and web-based document server DOL, which we developed at the University of Leipzig (http://dol.uni-leipzig.de). Th...
Sergey Melnik, Erhard Rahm, Dieter Sosna
MFCS
1998
Springer
13 years 11 months ago
Blockwise Variable Orderings for Shared BDDs
In this paper we consider the problem of characterizing optimal variable orderings for shared OBDDs of two Boolean functions fi = gi i hi, i = 1, 2, where i is an operator from th...
Harry Preuß, Anand Srivastav
GI
1998
Springer
13 years 11 months ago
Self-Organizing Data Mining
"KnowledgeMiner" was designed to support the knowledge extraction process on a highly automated level. Implemented are 3 different GMDH-type self-organizing modeling algo...
Frank Lemke, Johann-Adolf Müller
GI
2007
Springer
14 years 1 months ago
Semantic Web Technologies for Power Grid Management
: Utility companies worldwide are facing a multitude of new challenges, which can not be met with the historically grown, monolithic IT systems currently in use. Service oriented a...
Mathias Uslar, Nikolai Dahlem