Transcript 1-D navigation - Visual Analytics Digital Library

1-D
Information Spaces
cs5764: Information Visualization
Chris North
Review
• Strategies for visualizing multi-D relations?
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• Strategies for visualizing multi-D functions?
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• Empirical Evaluation:
• Independent and dependent variables?
• How to “prove” hypothesized effect?
Information Spaces
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Multi-dimensional: databases,…
1D: timelines,…
2D: maps,…
3D: volumes,…
Hierarchies/Trees: directories,…
Networks/Graphs: web,…
Document collections: digital libraries,…
1-D Spaces
• Timelines, time series
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1-D Spaces
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Timelines, time series
Lists
Indices
Text
Video, audio
Music
PowerPoint slideshow
computer memory
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Text
What’s wrong with
this picture?
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The Keyhole Problem
• No “context”, tunnel vision
• Lost, disoriented
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Where am I?
Where can I go?
Where do I want to go?
How do I get there?
Text Examples
(MS Word)
Visual Overview
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Show me the data!
Map, spatial organization
What information is (not) present?
Adds context info, relationships
Enables direct access
Encourages exploration
HCI metrics:
• Improves user performance, learning time, satisfaction
Insight
Navigation Strategies
• Detail Only
• Zooming
• Overview+Detail
• Focus+Context
• Multiple views
• Distortion, fisheye
Zooming: Lifelines
• Plaisant, “Lifelines”
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• http://www.cs.umd.edu/hcil/lifelines/
(UMd)
O+D: SeeSoft
• Eick, “SeeSoft”
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(Bell Labs / Lucent)
Multiple Hierarchical Foci
• Marcus Beale et al. (VT), InfoVis 2001
• Virtual
school
comm.
F+C: Perspective Wall
• Mackinlay, “Perspective Wall”
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(Xerox PARC)
Fisheye Menus
• Bederson, (UMd)
• http://www.cs.umd.edu/hcil/fisheyemenu/
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• Overview letters more useful than menu items
context?
• Menu items context more useful if show data
attributes
• E.g. seesoft
Spirals
• Carlis, Konstan, “Serial periodic data”
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MMVIS
• Hibino, “MMVIS”
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Music Animation Machine
http://www.well.com/user/smalin/mam.html
• Good during serial playback, relate audio to visual
structure
• Visualizing entire compositions: increase information
density
• See patterns of phrases, instruments, etc.
Navigation Strategies
• Detail Only
• Zooming
• Overview+Detail
• Focus+Context
• Multiple views
• Distortion, fisheye