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Male vs female is a poor test because you can guess correctly about 50% of the time. Thats on par with some current CAPTCHA bots.
by mikeknoop 16y ago
Male vs female is a poor test because you can guess correctly about 50% of the time. Thats on par with some current CAPTCHA bots.
- what 16y agoYou could show several faces and ask "how many are male/female?"
- emzo 16y agoAnother idea along these lines would be to present a scene and ask the user how many objects are in the scene. It's a very difficult problem for computers to descern individual objects in a scene, especially if they overlap.
- emzo 16y agoIt's also not so good for the visually impaired because you can't really provide an audio version of the challenge, whereas identifying the letters in a random string is easier to present as audio.
- togasystems 16y agoDo captcha bots ever use the audio string? Could you not hook up a voice recognizer to the audio portion?
- deleted 16y ago[deleted]
- matt2224 16y agoMany captcha bots support audio strings.
- what 16y agoThat's true. Maybe you could do something with profiles from FB. Show a small collections of faces one of which is your friend on FB. Then you have to select your friend. For the visually impaired you could read peoples' names. A real person would instantly recognize one of their friends and even the guy getting paid to solve captchas would have a hard time. Of course, you then have the problem of getting someone to connect FB to the CAPTCHA service for the first time instead of abandoning the form.