DocumentCode
3630293
Title
SemCAPTCHA—user-friendly alternative for OCR-based CAPTCHA systems
Author
Pawel Lupkowski;Mariusz Urbanski
Author_Institution
Chair of Logic and Cognitive Science, Institute of Psychology, Adam Mickiewicz University, Szamarzewskiego 89, 60-568 Pozna?, Poland
fYear
2008
Firstpage
325
Lastpage
329
Abstract
In this paper we present a new CAPTCHA system (Completely Automated Turing Test To Tell Computers and Humans Apart). This proposal, SemCAPTCHA, is motivated by an increasing number of broken OCR-based CAPTCHA systems and it is based not only on text recognition but also on text understanding. We describe SemCAPTCHA from both user´s perspective and system´s perspective and compare it to some currently popular CAPTCHAs. We also briefly describe an experiment carried out to test our CAPTCHA on human users.
Keywords
"Humans","Optical character recognition software","Automatic testing","Electronic mail","Artificial intelligence","Application software","Proposals","System testing","Computer science","Information technology"
Publisher
ieee
Conference_Titel
Computer Science and Information Technology, 2008. IMCSIT 2008. International Multiconference on
Print_ISBN
978-83-60810-14-9
Type
conf
DOI
10.1109/IMCSIT.2008.4747260
Filename
4747260
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