Funtcha
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Transcript of Funtcha
FuntchasHave Fun. Not Spam.
Kathrin Dentler, Nicolas Höning
The Turing Test
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Today: Captchas• Completely Automated Public Turing test
to tell Computers and Humans Apart
• ‘reverse Turing Test’
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Alternatives?
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All work and no play...
• today’s approaches make users repeat themselves
• approx 150,000 man hours a day
• arms race (e.g. cruder letters in Captchas) leads to bad accessibility
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Captchas will be solved
• A lot are already solved
• http://sam.zoy.org/pwntcha
• Image recognition makes great advances
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Captchas should ...
• 1. be fun, not work
• 2. not be solvable anytime soon
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Funtcha• FUNny Turing test to tell Computers and
Humans Apart
• the idea: let a community of humans create riddles - let the people define how they want to be tested
• 1. humans like surprises
• 2. machines do not
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A Funtcha
• question
• image
• answer (1 word)
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Usage
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Deliver fitting Funtchas
• they should fit the user
• they should have worked before
• this should cost the user minimal effort (remember: the goal is to have fun)
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Deliver fitting Funtchas
• We learn how solvable a Funtcha is
• Users can demand a different Funtcha (express dislike)
• We use tagging to match users of websites and Funtchas
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Database
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Funtcha Selection
• select candidates based on tag similarity
• sort list according to solved/disliked ratio. give new Funtchas a chance to be highly ranked
• choose one randomly out of the best n Funtchas
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Web Interaction
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Open Issues• Accessibility: Image not a must, also Audio
• Security: SSL, changing filenames, etc.
• Copyrights
• Human Labour
• Personalisation: Creators, Websites
• Numbers
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The End• Thanks for listening. Questions?
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