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  • 551.
    Östlund, Eric
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Lernholt, Kim
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Physical Activity Toolkit: Utveckling av en tillgänglig mobilapplikation för kognitivt funktionsnedsatta2014Independent thesis Basic level (university diploma), 10 credits / 15 HE creditsStudent thesis
    Download full text (pdf)
    PAT
  • 552.
    Östlund, Robert
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Johansson, Patrik
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management.
    Sentence First CAPTCHA: Proposal and study of a text based CAPTCHA scheme2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    A major problem on the Internet is automated computer programs abusing services intendedto be used only by humans. Therefore, a method is needed to separate computersfrom humans. Completely Automated Public Turing Test To Tell Computers and HumansApart, or CAPTCHA, is a term used to describe a test that is difficult for computers andeasy for humans to pass and that can be generated and graded automatically. Most of theCAPTCHA schemes currently in use rely on some kind of image or audio recognitionproblem, making them unavailible to the visually and/or audially impaired. Additionally,visual CAPTCHAs can currently be broken with alarmingly high success rates. We proposea CAPTCHA scheme based purely in the text domain which we have named SentenceFirst CAPTCHA. The problem imposed on the users consists of classifying stochasticallygenerated sentences by fluency and legibility and pairs of sentences by semantic coherence.This scheme was implemented and tested by means of several surveys. The answers wereanalysed and the results show that this could very well be a feasible CAPTCHA scheme.

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    fulltext
  • 553.
    Östman, Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    Network for testing GI services2010In: Proceedings from Symposium GIS Ostrava 2010, 2010, p. 6 s.-Conference paper (Refereed)
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    FULLTEXT01
  • 554.
    Östman, Anders
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad. University of Gävle, GIS-institutet.
    Saio, Giorgio
    Granelli, Valeria
    Liljergren, Pär
    University of Gävle, GIS-institutet.
    Marchese, Alessandra
    GI-INDEED, an e-learning initiative in geo-information for environmental management compliant with the INSPIRE Directive2007In: Proceedings of the 13th EC-GIS Conference, July 4-6, 2007, Porto, Portugal, 2007Conference paper (Other academic)
9101112 551 - 554 of 554
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