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Re: Some of the reCHAPTHA is insane ![]() Posted by Bloodnose [Email] ![]() ![]() In Reply to: Some of the reCHAPTHA is insane, Dean, Sat, 15 Oct 2016 12:51:17 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Actually, reCAPTCHA, used here, battles malevolence (spammers) with benevolence. I'll advocate its use as much as possible, as long as the underlying code doesn't crash and lose everything I type -- I don't know about this site's code because I'm registered and don't have to deal with it.
reCAPTCHA is a project that helps digitize books, maps, signage, etc, using the information you type, because you as a human are better at deciphering images than algorithms are.
Here is an excerpt from howstuffworks.com,
Some CAPTCHA creators came up with a way to increase the value of such an application: digitizing books. An application called reCAPTCHA harnesses users responses in CAPTCHA fields to verify the contents of a scanned piece of paper. Because computers aren't always able to identify words from a digital scan, humans have to verify what a printed page says. Then it's possible for search engines to search and index the contents of a scanned document.
Here's how it works: First, the administrator of the reCAPTCHA program digitally scans a book. Then, the reCAPTCHA program selects two words from the digitized image. The application already recognizes one of the words. If the visitor types that word into a field correctly, the application assumes the second word the user types is also correct. That second word goes into a pool of words that the application will present to other users. As each user types in a word, the application compares the word to the original answer. Eventually, the application receives enough responses to verify the word with a high degree of certainty. That word can then go into the verified pool.
http://computer.howstuffworks.com/captcha.htm
_______________________________________ Clarence Donath Richmond, RI
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