A Visual View of Human Computation Models / Crowdsourcing
1. A Visual View of
Human Computation Models / Crowdsourcing
2012.02.28
by Reilly Brennan
brennanr@stanford.edu
Wednesday, May 2, 12
2. How we typically think of
crowdsourcing / human
computation models
Wednesday, May 2, 12
3. A new visual view
Axes
Taxonomy
Open Fixed
Contributor
accessibility
Novice Expert
Consumption
view
Open Curated
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4. EOL: Encyclopedia of Life
•Collaborative bio-encyclopedia
•Experts and non-experts
•Many significant content partnerships
•“Infinitely expandable” formats: video, sound,
images, graphics, text
•Initial $50M funding from MacArthur, Sloan,
Smithsonian, Harvard, Field Museum
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6. Quora
•Q&A with curation
•Real names
•Positive feedback systems
•Voting methods
•Editing across answers &
questions
•Private company
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10. Steve Fossett Search
•Collaborative search for missing
explorer Steve Fossett
•Google Earth + Amazon’s
Mechanical Turk
•Over 50,000 volunteers
•Users scrubbed map “tiles”
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12. Galaxy Zoo
•Collaborative classification of
galaxies
•“Citizen Science”
•Little experience required;
extensive tutorials
•“You may be the first person in
history to see...”
•Users scrub map tiles
•Heavy participation with
academia
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14. Recaptcha
•Collaborative digitization
through validation
•Over 100M captchas per day
•Platform
•Originally developed by Luis
von Ahn, now owned by Google
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16. Gwap: Games with a Purpose
•Data projects outsourced
through entertainment
•Good for image and text tasks
(tagging, labeling, transcription)
•ESP Game first developed by
Luis von Ahn
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18. Duolingo
•Text translation crowdsourcing
via education
•“Learn a language, translate the
web”
•Launched Nov 2011, closed
beta w/ over 100k users on
waiting list
•English - Spanish, German
•Originally developed by Louis
von Ahn
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20. ...A model emerges for singular big data challenges
Closed taxonomy
Novice contributors OK
Curated consumption view
Native Non native
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21. ...Another model emerges for diverse content platforms
Open taxonomy most common
Multiple contributor models
Curated consumption view
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