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Multivariate Network Exploration and Presentation: From Detail to - - PowerPoint PPT Presentation
Multivariate Network Exploration and Presentation: From Detail to - - PowerPoint PPT Presentation
Multivariate Network Exploration and Presentation: From Detail to Overview via Selections and Aggregations Stef van den Elzen Jarke J. van Wijk Infovis Nov 11, 2014 presented by Francisco Escalona What? Multivariate Network Exploration
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Multivariate Network
Nodes (also edges)
Example: Census data by county of USA
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Overview Detail Filter Selec- tion 4 linked juxtaposed views: DOSA
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Exploration task Presentation task
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Adjustable 2D projection of nodes
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Selection: boxes, ranges
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Within
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Between – color map
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Background
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Combined
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Overview
- Manual layout
- Scatterplots, parallel-
coordinates, histograms, treemaps, small multiples
- Zooming
- Aggregation
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Migration in highly populated counties
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Scale
- 5-10 selections (2-6 expected)
- 1-2 dozen attributes
- 100s-1000s of nodes
- more with aggregation
- L < 4N
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Strengths
- Both network exploration and multivariate analysis
- Intuitive, easy to use (?)
- Dynamic exploration, visual querying
- Can be used by novices
- Expressive
- Time
- Topology
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Limitations
- Partitions only by nodes
- Only supports ranges
- Limited scaling up
- No help on where to start
- Overview can be too summarized
- Axis can be difficult to see
- One tool in a toolkit
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In Summary
A tool for exploration and presentation
- f multivariate network data