Abstract.
We introduce captcha, an automated test that humans can pass, but current computer programs canâ„¢t pass: any program that has high success over a captcha can be used to solve an unsolved Arti?- cial Intelligence (AI) problem. We provide several novel constructions of captchas. Since captchas have many applications in practical secu- rity, our approach introduces a new class of hard problems that can be exploited for security purposes. Much like research in cryptography has had a positive impact on algorithms for factoring and ....etc

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Captchas are tests that distinguish human from software botsin an online environment, used to stop bots abusing services intended for humans. Paypal and Yahoo have captchas in their new user registration process, but there are programs toovercome them. Investigate proposals for new kinds of captchas. Captchas are used to prevent bots from using various types of computing services. Applications include preventing bots from taking part in online polls, registering for free email accounts (which may then be used to send spam), and, more recently, ....etc

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C.A.P.T.C.H.A
Completely Automated Public Turing Test to Tell Computers and Humans Apart

Abstract
A CAPTCHA (an acronym for completely automated public Turing test to tell computers and humans apart, trademarked by Carnegie Mellon University) or a MAPTCHA (Mathematical) is a type of challenge-response test used in computing to determine whether or not the user is human. The term was coined in 2000 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper of Carnegie Mellon University, and John Langford of IBM. A common type of CAPTCHA requires t ....etc

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Captchas are tests that distinguish human from software botsin an online environment, used to stop bots abusing services intended for humans. Paypal and Yahoo have captchas in their new user registration process, but there are programs toovercome them. Investigate proposals for new kinds of captchas. Captchas are used to prevent bots from using various types of computing services. Applications include preventing bots from taking part in online polls, registering for free email accounts (which may then be used to send spam), and, more recently, ....etc

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Captchas are tests that distinguish human from software botsin an online environment, used to stop bots abusing services intended for humans. Paypal and Yahoo have captchas in their new user registration process, but there are programs toovercome them. Investigate proposals for new kinds of captchas. Captchas are used to prevent bots from using various types of computing services. Applications include preventing bots from taking part in online polls, registering for free email accounts (which may then be used to send spam), and, more recently, ....etc

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Namste guruji,
Hu tamara guruvar ni purti dharamlok ghana khara lekh vanchu chu har vakhte zindagi naprashno ne sulzavva na manto apel hoy che je bahu saras hpy che pan kyarey teno sangrah ke anusaran nathi karyu karan ke jarur nathi padi.Pan atyare samay evo che ke ke mare eni jarur padi che.Vat em che ke marrige na char varas thaya khub sari rite joint family ma rahu chu pan atyare ghana problem chale che jethi mari iccha che ke hu mara husband ane mara 2 varsh na balak sathe canada java vicharu chu.mara pati ne ....etc

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Abstract.
We introduce captcha, an automated test that humans can pass, but current computer programs canâ„¢t pass: any program that has high success over a captcha can be used to solve an unsolved Arti?- cial Intelligence (AI) problem. We provide several novel constructions of captchas. Since captchas have many applications in practical secu- rity, our approach introduces a new class of hard problems that can be exploited for security purposes. Much like research in cryptography has had a positive impact on algorithms for factoring and ....etc

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ABSTRACT

The concept of wearable computing was first brought forward by Steve Mann, who, with his invention of the ËœWearCompâ„¢ in 1979 created a pioneering effort in wearable computing. Other than being a portable computer, a wearable computer must be an adaptive system with an independent processor. That is the system must adapt to the whims and fancies of the user instead of the user having to adapt his lifestyle for the system.
The six devices to be introduced represent the new frontiers in the development o ....etc

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Georgia - History



History

Georgia became a kingdom about 4 B.C. and Christianity was introduced in A.D. 337. During the reign of Queen Tamara (1184–1213), its territory included the whole of Transcaucasia. During the 13th century, Tamerlane and the Mongols decimated its population. From the 16th century on, the country was the scene of a struggle between Persia and Turkey. In the 18th century, it became a vassal to Russia in exchange for protection from the Turks and Persians.
Georgia joined Azerba ....etc

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sir i wanna ppt on this topic.plz helpme. ....etc

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