Introduction
Google try to dominate the visual navigation industry with deception and crowdsourcing techniques
Possibly under pressure from Flickr, YouTube and the up coming Photosynth
This is Evil Genius.
Google Label
Licenced the games from Luis von Ahn
http://images.google.com/imagelabeler/
The 'original' ESP game
Presentation by Luis von Ahn
Research homepage - Luis von Ahn
http://www.cs.cmu.edu/~biglou/research.html
PowerPoint presentation: http://www.cs.cmu.edu/~biglou/cycles.ppt
CAPTCHA
A PROGRAM THAT CAN GENERATE AND GRADE TESTS THAT:
A. MOST HUMANS CAN PASS
B. CURRENT COMPUTER PROGRAMS CANNOT PASS
A CAPTCHATM is a program that can generate and grade tests that most humans can pass, but current computer programs can't pass. For example, humans can read distorted text as the one shown below, but current computer programs can't:
(add image)
This leads to 'perform a zero knowledge proof' link (HIPS)
Further notes
http://www.captcha.net/
http://en.wikipedia.org/wiki/Captcha
http://www.aladdin.cs.cmu.edu/hips/
Reports
The game is not the first attempt to use volunteer labor to create a database of knowledge: The Wikipedia online encyclopedia and the DMoz search directory are two of the better known examples. http://www.macworld.com/news/2006/09/04/google/index.php?lsrc=mwrss