ReCAPTCHA- against garbage comments
since the choice of Wordpress open, it will be unavoidable to fight with the garbage message, a few few pieces a day, more than a hundred dozens, and there is Akismet this East, but after all this is "passive" Defense, if Akismet plus a message "verification code" category, the effect will be even higher. So, I'd like to recommend a Google, "the word in ancient books that can't be identified by a large number of electronic scanning devices, while preventing garbage messages."
CAPTCHA is the abbreviation of "Completely Automated Public Turing Test to tell Computers and), the Chinese" fully automated computer and human testing ", originally proposed by a Carnegie Mellon University scholar, the best way to divide humans and computers in the electronic time zone. The idea is to let the user see a group of letters and word groups that are deformed or added to the wave line. The processed images can't be identified by a computer scan and can only be read and read by humans, so this feature brings up the reCAPTCHA project. At the same time, two phrases are produced (one after another), a phrase is a phrase of the known answer (which has been processed by the CAPTCHA technology, the machine cannot be identified), and if the word can be answered, the reCAPTCHA server will be informed that it is a human, and that his answer will be credible; and, at the same time, another group of words (of course, C) APTCHA technology processing), there is no answer, that is, what word is not yet known, whether you enter it right or wrong, will go back to the reCAPTCHA server with the phrase of the last known answer, and if the last word (known answer) is correct, the answer to the second phrase will be recorded, and vice versa. A record will be recorded as a "pre response to human's unknown scan results" as a basis for judging this unknown word. At the same time, the unknown word will be sent to numerous web sites that use reCAPTCHA technology. If different visitors from different sites answer the same answer to the word, the answer will be the right answer to the word. This is a complete process of reCAPTCHA process, that is, the answer to "an unknown answer phrase" through a phrase "judging human". The following is the following:
the prebirth of reCAPTCHA, the use of it, the reCAPTCHA service now operated by Google, and the existence of a large number of unprocessed scans all over the world, and every time the service has been pushed to millions of websites to use the service, to judge and give answers by visitors. So, for different technical applications, there is a corresponding plug-in,
for example, we use Wordpress
one called "WP-reCAPTCHA"
>! -- m -->http://! R / > plug-in is used to complete the display of this service. The usage is as follows:
1, open http://www.google.com/recaptcha, click Get reCAPTCHA on the left, and then log in with your Google account.
2, in the "Create a reCAPTCHA key" page, fill in your domain name, click the Creat Key to generate (the generated key can be used in this domain name or subdomain name under the name of this domain).
3, get PublicKey and Private Key two groups of keys, respectively fill in the WP-reCAPTCHA plug-in set page, and select "Enable reCAPTCHA for comments", save, OK. Refresh your article page, do you have the verification code like above?!
to sum up, you are using reCAPTCHA services to resist garbage messages, but also help people to identify, accumulate more accurate old information and turn them into electronic documents, which will be a great contribution to human beings. But when it comes to this, we have to compare it with our Chinese, compare to the language of the alphabet, and the language of the alphabet. The evolution of the Chinese characters is too long and too complicated. The ancient Chinese characters are difficult to identify with our own experts, not the other people in the rest of the world. So, the digitalization of the Chinese characters, Compared with English and other languages, there is still a long way to go.
reference:
1, Wikipedia's interpretation of CAPTCHA.
>! -- m -->http://zh.wikipedia.org/zh-cn/CAPTCHA
2, Wikipedia's explanation of reCAPTCHA.
>! - M -->http://zh.wikipedia.org/zh-cn/ReCAPTCHA