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EDM
2009

Visualization of Differences in Data Measuring Mathematical Skills

13 years 8 months ago
Visualization of Differences in Data Measuring Mathematical Skills
Identification of significant differences in sets of data is a common task of data mining. This paper describes a novel visualization technique that allows the user to interactively explore and analyze differences in mean values of analyzed attributes. Statistical tests of hypotheses are used to identify the significant differences and the results are then presented using Hasse diagrams. The presented technique has been tested on real data coming from pedagogical tests focused on evaluation of mathematical skills of secondary school students in Czech Republic. The results show that the proposed tool provides comprehensible representation of the data.
Lukás Zoubek, Michal Burda
Added 17 Feb 2011
Updated 17 Feb 2011
Type Journal
Year 2009
Where EDM
Authors Lukás Zoubek, Michal Burda
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