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VMV
2004
143views Visualization» more  VMV 2004»
14 years 12 months ago
Illustrating Magnetic Field Lines using a Discrete Particle Model
In this paper we demonstrate how a computational physics approach based on a discrete particle model can be employed for the visualization of magnetic field lines. This can be reg...
Thomas Klein, Thomas Ertl
SIGCSE
2002
ACM
163views Education» more  SIGCSE 2002»
14 years 10 months ago
Design guidelines for the lab component of objects-first CS1
We adopt the view that CS1 labs are not programming assignments, and that they should not be used for grading students or assessing their level of understanding. Instead, we think...
Hamzeh Roumani
HCI
2009
14 years 8 months ago
Interaction with Colored Graphical Representations on Braille Devices
For several years there has been the wish to make colors accessible to blind people. Colors are all around us and sighted people often talk about colors as it is a simple means of ...
Christiane Taras, Thomas Ertl
ICDE
2009
IEEE
149views Database» more  ICDE 2009»
16 years 9 days ago
Online Tuning of Aggregation Tables for OLAP
Materializing results from complex aggregation queries helps to significantly improve response times in OLAP servers. This problem is known as the view selection problem: choosing ...
Katja Hose, Daniel Klan, Kai-Uwe Sattler
DAWAK
2005
Springer
15 years 4 months ago
Design and Development of a Tool for Integrating Heterogeneous Data Warehouses
In this paper we describe the design of a tool supporting the integration of independently developed data warehouses, a problem that arises in several common scenarios. The basic f...
Riccardo Torlone, Ivan Panella