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dc.contributor.authorJanković, Radmilaen
dc.contributor.authorAmelio, Alessiaen
dc.date.accessioned2020-04-27T10:55:19Z-
dc.date.available2020-04-27T10:55:19Z-
dc.date.issued2019-02-01en
dc.identifier.isbn978-153863731-9en
dc.identifier.urihttp://researchrepository.mi.sanu.ac.rs/handle/123456789/916-
dc.description.abstractThis paper investigates the usability of the CAPTCHA on smartphones. Four puzzle and gesture-based CAPTCHA schemes are tested: (1) TAPCHA version 2, (2) TAPCHA version 3, (3) FUN and (4) CAPY CAPTCHA. The response time to solve the CAPTCHA is employed as a usability parameter, while demographic and personal parameters such as gender, age, education, daily and yearly Internet experience are used as independent variables. Four hypotheses are examined via statistical analysis, in particular using the Kruskal-Wallis H test and the Mann-Whitney U test. It is proved that the solving time of TAPCHA schemes when solved on a smartphone depends on user's Internet experience, education, and age. On the contrary, the solving time of FUN and CAPY CAPTCHAs does not depend on any tested input parameter. The paper presents new insights on the usability of CAPTCHAs on smartphones. They can be adopted for designing CAPTCHA schemes that are more adjusted to different groups of Internet users.en
dc.publisherIEEE-
dc.relationDevelopment of new information and communication technologies, based on advanced mathematical methods, with applications in medicine, telecommunications, power systems, protection of national heritage and education-
dc.relation.ispartof9th International Conference on Information, Intelligence, Systems and Applications, IISA 2018en
dc.titleUsability of puzzle and gesture-based CAPTCHAs on smartphones via statistical analysisen
dc.typeConference Paperen
dc.relation.conference9th International Conference on Information, Intelligence, Systems and Applications, IISA 2018; Technological Educational Institute of Ionian IslandsZakynthos; Greece; 23 July 2018 through 25 July 2018-
dc.identifier.doi10.1109/IISA.2018.8633680en
dc.identifier.scopus2-s2.0-85062863889en
item.openairetypeConference Paper-
item.cerifentitytypePublications-
item.fulltextNo Fulltext-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextnone-
crisitem.author.orcid0000-0003-3424-134X-
crisitem.project.projectURLhttp://www.mi.sanu.ac.rs/novi_sajt/research/projects/044006e.php-
crisitem.project.fundingProgramNATIONAL HEART, LUNG, AND BLOOD INSTITUTE-
crisitem.project.openAireinfo:eu-repo/grantAgreement/NIH/NATIONAL HEART, LUNG, AND BLOOD INSTITUTE/5R01HL044006-04-
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