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Proceedings Paper

Visual mining geo-related data using pixel bar charts
Author(s): Ming C. Hao; Daniel A. Keim; Umeshwar Dayal; Peter Wright; Joern Schneidewind
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Paper Abstract

A common approach to analyze geo-related data is using bar charts or x-y plots. They are intuitive and easy to use. But important information often gets lost. In this paper, we introduce a new interactive visualization technique called Geo Pixel Bar Charts, which combines the advantages of Pixel Bar Charts and interactive maps. This technique allows analysts to visualize large amounts of spatial data without aggregation and shows the geographical regions corresponding to the spatial data attribute at the same time. In this paper, we apply Geo Pixel Bar Charts to visually mining sales transactions and Internet usage from different locations. Our experimental results show the effectiveness of this technique for providing data distribution and immediate identification of anomalies from the map.

Paper Details

Date Published: 11 March 2005
PDF: 8 pages
Proc. SPIE 5669, Visualization and Data Analysis 2005, (11 March 2005); doi: 10.1117/12.586037
Show Author Affiliations
Ming C. Hao, Hewlett-Packard Labs. (United States)
Daniel A. Keim, Hewlett-Packard Labs. (United States)
Umeshwar Dayal, Hewlett-Packard Labs. (United States)
Peter Wright, Hewlett-Packard Labs. (United States)
Joern Schneidewind, Hewlett-Packard Labs. (United States)


Published in SPIE Proceedings Vol. 5669:
Visualization and Data Analysis 2005
Robert F. Erbacher; Jonathan C. Roberts; Matti T. Grohn; Katy Borner, Editor(s)

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