Interactive Visual Analysis of Temporal Cluster Structures

Cluster analysis is a useful method which reveals underlying structures and relations of items after grouping them into clusters. In the case of temporal data, clusters are defined over time intervals where they usually exhibit structural changes. Conventional cluster analysis does not provide suffi...

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Vydané v:Computer graphics forum Ročník 30; číslo 3; s. 711 - 720
Hlavní autori: Turkay, C., Parulek, J., Reuter, N., Hauser, H.
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Oxford, UK Blackwell Publishing Ltd 01.06.2011
Predmet:
Cluster analysis
Clusters
Computer graphics
Computing Methodologies [I.3.m]: Computer Graphics
Evolution
Image processing systems
Information processing
Interactive
Lipids
Miscellaneous
Signatures
Studies
Temporal logic
Visual
ISSN:0167-7055, 1467-8659
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Shrnutí:Cluster analysis is a useful method which reveals underlying structures and relations of items after grouping them into clusters. In the case of temporal data, clusters are defined over time intervals where they usually exhibit structural changes. Conventional cluster analysis does not provide sufficient methods to analyze these structural changes, which are, however, crucial in the interpretation and evaluation of temporal clusters. In this paper, we present two novel and interactive visualization techniques that enable users to explore and interpret the structural changes of temporal clusters. We introduce the temporal cluster view, which visualizes the structural quality of a number of temporal clusters, and temporal signatures, which represents the structure of clusters over time. We discuss how these views are utilized to understand the temporal evolution of clusters. We evaluate the proposed techniques in the cluster analysis of mixed lipid bilayers.
Bibliografia:ArticleID:CGF1920
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ISSN:0167-7055
1467-8659
DOI:10.1111/j.1467-8659.2011.01920.x