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![Page 1: Visual Thinking and Visual Thinking Tools: Space, Time and Simple Cognitive Models to Support Design Colin Ware Data Visualization Research Lab, CCOM,](https://reader038.fdocuments.us/reader038/viewer/2022103007/56649cb95503460f9497f949/html5/thumbnails/1.jpg)
Visual Thinking and Visual Thinking Tools:
Space, Time and Simple Cognitive Models to Support Design
Colin WareData Visualization Research Lab, CCOM,
University of New Hampshire
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Architecture for visual thinking
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Change Blindness
Simons and Levin
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Central Problem: How do we perceivethe world in all its rich detail?
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The Nature of Visual Space
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Capacity of visual working memory (Vogal, Woodman, Luck, 2001) Task – change detection Can see 3.3 objects Each object can be complex
1 second
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Sequential comparison task
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We can remember about 3-8 locations
Object File
Egocentric Coordinate Map
Object File
Object File
Gist Semantic content
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Solution “The world is its own memory” O’Regan Task-related active vision “What you see is what you need”
Treish et al. (2003)
Seeing is a process that helps us solve problems
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Task-related eye movementsHayhoe and Ballard, 2005
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Example 1: How to get focus and context?
Zooming (Bedersen) Linked windows
(Fowler & Ware) Fisheye (Furnas,
Carpendale)
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Zooming Vs Multiple Windows (Matt Plumlee)
Problem: When do we need extra windows?
Comparing parts of a visual scene.
2 solutions: Zooming, multiple windows
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Task: searching for target patterns that match
Zooming vsWindows + eye movements
1,3,5,7 items per cluster
Conditons:
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Cognitive Model (grossly simplified)
Time = setup cost +
number of “visits” x time per visit
Number of visits is a function of number of objects to be compared and visual working memory capacity.
Visits = n/M
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Prediction Results
As targets (and visual working memory load) increases, multiple
Windows become more attractive.
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Design heuristic
When we need to compare more two or three simple pattern components add windows.
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Example 2
Tools for finding new underwater behaviors from humpback whale tag data
(Why turning time into space is a good idea)
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BigEyes
Antenna
The gear
DTAG Mark Johnson
Dave Wiley
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Task: find new behaviors
= stereotyped patterns
Cognitive Algorithm repeat
Review behavior sequence looking for patterns. Remember patterns.
Look for more instances. until no new patterns
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The old way
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Solution 1. GeoZui 4D
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Cognitive process for finding new behaviors
stereotyped patternsCognitive Algorithm repeat
Review behavior sequence looking for patterns by playback. Remember patterns using space-time notes.
Look for more instances. May involve reviewing all other whale tracks.
Until no new patterns Cost k*playback time.
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Solution 2: trackplot
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Foraging patterns
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Traversing
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04
06 06
07
2006Mostly
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Process for finding new behaviors
stereotyped patternsCognitive algorithm Get to a good viewpoint repeat
Review behavior sequence looking for patterns eye movements. Remember patterns using visual working memory.
Look for more instances. May involve reviewing all other whale tracks. Can be posted on the wall
until no new patterns Cost Nav + Eye Movement time *pattern matching.
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Gain in efficiency – from playback tool to pattern finding tool
Many hours (with playback) A few minutes (with patterns)
Approximately a factor of 100
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Design heuristic
Whenever possible: Turn time into a spatial pattern – one that converts critical events into shapes or patterns
Try to make natural mappings – proper use of texture color, etc.
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Example 3: Network diagram
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Degree of relevance highlighting
User clicks on something Computer shows related items User conducts a visual search for task
relevant information
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Order of magnitude gain in size
Layout problem simplified Applicable to many problems Depends on information scent
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Review
DisplayFeatures
Proto-objects andPatterns
VisualWorkingMemory
GIST
VisualQuery
VerbalWorkingMemory
Egocentric object andPattern map
OBJECTFILES“Nexus”
a
AB
C
D
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Where are we going?
Simple cognitive process models involving Perceptual and cognitive operations Interaction methods
For Design
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