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  2. CAPTCHA - Wikipedia

    en.wikipedia.org/wiki/Captcha

    The term was coined in 2003 by Luis von Ahn, Manuel Blum, Nicholas J. Hopper, and John Langford. [6] It is a contrived acronym for "Completely Automated Public Turing test to tell Computers and Humans Apart." [7] A historically common type of CAPTCHA (displayed as reCAPTCHA v1) was first invented in 1997 by two groups working in parallel. This ...

  3. Models of communication - Wikipedia

    en.wikipedia.org/wiki/Models_of_communication

    Many models of communication include the idea that a sender encodes a message and uses a channel to transmit it to a receiver. Noise may distort the message along the way. The receiver then decodes the message and gives some form of feedback. [1] Models of communication simplify or represent the process of communication.

  4. Data and information visualization - Wikipedia

    en.wikipedia.org/wiki/Data_and_information...

    Data visualization refers to the techniques used to communicate data or information by encoding it as visual objects (e.g., points, lines, or bars) contained in graphics. The goal is to communicate information clearly and efficiently to users. It is one of the steps in data analysis or data science. According to Vitaly Friedman (2008) the "main ...

  5. reCAPTCHA - Wikipedia

    en.wikipedia.org/wiki/ReCAPTCHA

    reCAPTCHA Inc.[1] is a CAPTCHA system owned by Google. It enables web hosts to distinguish between human and automated access to websites. The original version asked users to decipher hard-to-read text or match images. Version 2 also asked users to decipher text or match images if the analysis of cookies and canvas rendering suggested the page ...

  6. Source–message–channel–receiver model of communication

    en.wikipedia.org/wiki/Source–message–channel...

    The SMCR model is usually described as a linear transmission model of communication. [4] [17] Its main focus is to identify the basic parts of communication and to show how their characteristics shape the communicative process. In this regard, Berlo understands his model as "a model of the ingredients of communication". [24]

  7. Lasswell's model of communication - Wikipedia

    en.wikipedia.org/wiki/Lasswell's_model_of...

    Despite being widely seen as a model of communication, not everyone agrees that this is an accurate characterization. [2] A model of communication is a simplified presentation that aims to give a basic explanation of the process by highlighting its most fundamental characteristics and components.

  8. Schramm's model of communication - Wikipedia

    en.wikipedia.org/wiki/Schramm's_model_of...

    Schramm's model of communication is an early and influential model of communication. It was first published by Wilbur Schramm in 1954 and includes innovations over previous models, such as the inclusion of a feedback loop and the discussion of the role of fields of experience. For Schramm, communication is about sharing information or having a ...

  9. Barnlund's model of communication - Wikipedia

    en.wikipedia.org/wiki/Barnlund's_model_of...

    Barnlund's model is based on a set of fundamental assumptions holding that communication is dynamic, continuous, circular, irreversible, complex, and unrepeatable. Cues are of central importance in Barnlund's model. A cue is anything to which one may attribute meaning or which can trigger a response.