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Interactive Analysis of Object Group Changes over Time

Bremm, Sebastian and Landesberger, Tatiana von and Andrienko, Gennady and Andrienko, Natalia and Schreck, Tobias (2011):
Interactive Analysis of Object Group Changes over Time.
Eurographics Association, Goslar, In: EuroVA 2011, DOI: 10.2312/PE/EuroVAST/EuroVA11/041-044, [Conference or Workshop Item]

Abstract

The analysis of time-dependent data is an important task in various application domains. Often, the analyzed data objects belong to groups. The group memberships may stem from natural arrangements (e.g., animal herds), or may be constructed during analysis (e.g., by clustering). Group membership may change over time. Therefore, one important analytical aspect is to examine these changes (e.g., which herds change members and when). In this paper, we present a technique for visual analysis of group changes over time. We combine their visualization and automatic analysis. Interactive functions allow for tracking the data changes over time on group, set and individual level. We also consider added and removed objects (e.g., newly born or died animals). For large time series, automatic data analysis selects interesting time points and group changes for detailed examination. We apply our approach on the VAST 2008 challenge data set revealing new insights.

Item Type: Conference or Workshop Item
Erschienen: 2011
Creators: Bremm, Sebastian and Landesberger, Tatiana von and Andrienko, Gennady and Andrienko, Natalia and Schreck, Tobias
Title: Interactive Analysis of Object Group Changes over Time
Language: English
Abstract:

The analysis of time-dependent data is an important task in various application domains. Often, the analyzed data objects belong to groups. The group memberships may stem from natural arrangements (e.g., animal herds), or may be constructed during analysis (e.g., by clustering). Group membership may change over time. Therefore, one important analytical aspect is to examine these changes (e.g., which herds change members and when). In this paper, we present a technique for visual analysis of group changes over time. We combine their visualization and automatic analysis. Interactive functions allow for tracking the data changes over time on group, set and individual level. We also consider added and removed objects (e.g., newly born or died animals). For large time series, automatic data analysis selects interesting time points and group changes for detailed examination. We apply our approach on the VAST 2008 challenge data set revealing new insights.

Publisher: Eurographics Association, Goslar
Uncontrolled Keywords: Forschungsgruppe Visual Search and Analysis (VISA), Computer graphics, Information systems, Interfaces, Presentations
Divisions: 20 Department of Computer Science
20 Department of Computer Science > Interactive Graphics Systems
Event Title: EuroVA 2011
Date Deposited: 12 Nov 2018 11:16
DOI: 10.2312/PE/EuroVAST/EuroVA11/041-044
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