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Visuelle Datenanalyse mit Streudiagrammen : Problemlösungen für Ungleichverteilung und Überdeckung

Visuelle Datenanalyse mit Streudiagrammen : Problemlösungen für Ungleichverteilung und Überdeckung

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JANETZKO, Halldór, 2010. Visuelle Datenanalyse mit Streudiagrammen : Problemlösungen für Ungleichverteilung und Überdeckung [Master thesis]

@mastersthesis{Janetzko2010Visue-6063, title={Visuelle Datenanalyse mit Streudiagrammen : Problemlösungen für Ungleichverteilung und Überdeckung}, year={2010}, author={Janetzko, Halldór} }

Janetzko, Halldór Janetzko, Halldór 2011-03-24T16:09:07Z Visual Analytics with Scatter Plots Visuelle Datenanalyse mit Streudiagrammen : Problemlösungen für Ungleichverteilung und Überdeckung Coping with Unequal Distribution and Overplotting 2011-03-24T16:09:07Z Scatter plots are one of the most powerful and most widely used techniques for visual data exploration in order to detect patterns and correlations. A well-known problem is that scatter plots often have a high degree of overlap, which may occlude a significant portion of the data values shown. Additionally, scatter plots suffer from unequal data distribution, because dense areas are not visualized as good as sparse areas. The research shown in this master s thesis will cope with these problems using a novel approach called Generalized Scatter Plot. This technique allows an overlap-free representation of large datasets to fit entirely into the display.<br />The basic idea is to allow the analyst to optimize the degree of overlap and distortion to generate the best possible view. To allow an effective usage, the capability to interpolate smoothly between the traditional and the generalized scatter plots is provided. In particular, an optimization function will be identified, which takes both overlap and distortion of the visualization into account. Furthermore, the generalized scatter plots will be applied to a number of realworld data sets from application domains, such as server performance monitoring, telephone service usage analysis, and geographical data, demonstrating the benefits of the generalized scatter plots over traditional techniques. application/pdf deposit-license deu 2010

Dateiabrufe seit 01.10.2014 (Informationen über die Zugriffsstatistik)

MA_Janetzko_H.pdf 95

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