Two-Step CAPTCHA: Using a Simple Two Step Turing Test to Differentiate between Humans and Bots
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چکیده
منابع مشابه
A Comparison of Two-Step Tuberculin Skin Test between Health-Care Workers and Nonhospital Employees
Background: The tuberculin test is widely used to identify tuberculosis infection. Some individuals infected with Mycobacterium tuberculosis may have an initial negative skin test reaction to tuberculin. The two step purified protein derivative skin test can decrease misinterpretation of tuberculin test .This study was aimed at comparing the two- step tuberculin skin test and booster phenomenon...
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Smartphones play an important role in the information-communication society and accesses from smartphones to the Internet services increase more and more with the advent of cloud computing. Smartphones have comparatively small displays and it is possible for users to input data through touchscreens. The techniques such as a CAPTCHA (Completely Automated Public Turing test to tell Computers and ...
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In recent years, several new methods for the identiica-tion of approximate models of an open loop plant on the basis of closed loop data have been presented. In this paper, we extend such a method to the nonlinear case: we consider that both the plant and the controller can be nonlinear. The method that is considered is a two-step procedure, i.e. the sensitivity function of the closed loop syst...
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ژورنال
عنوان ژورنال: International Journal of Computer Applications
سال: 2013
ISSN: 0975-8887
DOI: 10.5120/14211-2473