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VLDB
2002
ACM
126views Database» more  VLDB 2002»
13 years 7 months ago
FAS - A Freshness-Sensitive Coordination Middleware for a Cluster of OLAP Components
Data warehouses offer a compromise between freshness of data and query evaluation times. However, a fixed preference ratio between these two variables is too undifferentiated. Wit...
Uwe Röhm, Klemens Böhm, Hans-Jörg S...
KDD
2006
ACM
117views Data Mining» more  KDD 2006»
14 years 8 months ago
Efficient multidimensional data representations based on multiple correspondence analysis
In the On Line Analytical Processing (OLAP) context, exploration of huge and sparse data cubes is a tedious task which does not always lead to efficient results. In this paper, we...
Omar Boussaid, Riadh Ben Messaoud, Sabine Loudcher...
DOLAP
2005
ACM
13 years 9 months ago
A personalization framework for OLAP queries
OLAP users heavily rely on visualization of query answers for their interactive analysis of massive amounts of data. Very often, these answers cannot be visualized entirely and th...
Ladjel Bellatreche, Arnaud Giacometti, Patrick Mar...
VLDB
1998
ACM
180views Database» more  VLDB 1998»
13 years 12 months ago
nD-SQL: A Multi-Dimensional Language for Interoperability and OLAP
We propose a multi-dimensional language called nD-SQL with the following features: (i) nD-SQL supports queries that interoperate amongst multiple relational sources with heterogen...
Frédéric Gingras, Laks V. S. Lakshma...
JDWM
2008
120views more  JDWM 2008»
13 years 7 months ago
Algebraic and Graphic Languages for OLAP Manipulations
This article deals with multidimensional analyses. Analyzed data are designed according to a conceptual model as a constellation of facts and dimensions, which are composed of mul...
Franck Ravat, Olivier Teste, Ronan Tournier, Gille...