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Q4710297 - MaRDI portal

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scientific article; zbMATH DE number 1930955
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English
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scientific article; zbMATH DE number 1930955

    Statements

    author
    Henry Spalding Baird
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    Kris Popat
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    publication date
    19 June 2003
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    zbMATH Keywords
    Human interactive proofs
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    document image analysis
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    CAPTCHAs
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    abuse of web sites and services
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    the chatroom problem
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    human/machine discrimination
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    Turing tests
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    OCR performance evaluation
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    document image degradations
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    legibility of text
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    Identifiers

    Mathematics Subject Classification ID
    68U99
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    68T10
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    68U10
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    68U35
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    68P25
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    zbMATH DE Number
    1930955
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