Human Interactive Proofs - Second International Workshop, HIP 2005, Bethlehem, PA, USA, May 19-20, 2005, Proceedings (Paperback, 2005 ed.)

E-commerce services are su?ering abuse by programs (bots, spiders, etc.) m- querading as legitimate human users. E?orts to defend against such attacks have, over the past several years, stimulated investigations into a new family of security protocols - "Human Interactive Proofs" (HIPs) - which allow a person to authenticate herself as a member of a given group: e.g., as a human (vs. a machine), as herself (vs. anyoneelse), as an adult (vs. a child). Most commercial usesofHIPstodayareCAPTCHAs,"CompletelyAutomaticPublicTuringtests to tell Computers and Humans Apart," which exploit the gap in ability between humans and machine vision systems in reading images of text. HIP challenges can also be non-graphical, e.g., requiring recognition of speech, solving puzzles, etc. Wearepleasedtopresentthe?rstrefereedandarchivallypublishedcollection of state-of-the-art papers on HIPs and CAPTCHAs. Each paper was reviewed by three members of the Program Committee, judged by the Co-chairs to be of su?cient relevance and quality, and revised by the authors in response to the referees' suggestions. The papers investigate performance analysis of novel CAPTCHAs, HIP - chitectures, and the role of HIPs within security systems. Kumar Chellapilla, Kevin Larson, Patrice Simard, and Mary Czerwinski describe user trials of a CAPTCHA designed to resist segmentation attacks, including a systematic evaluation of its tolerance by human users. Henry Baird, Michael Moll, and Sui- Yu Wang analyze data from a human legibility trial of another segmentati- resistantCAPTCHAandlocateahighlylegibleengineeringregime.AmaliaRusu and Venu Govindaraju describe research towards CAPTCHAs based on reading synthetically damaged images of real images of unconstrained handwritten text.

General

Imprint:	Springer-Verlag
Country of origin:	Germany
Series:	Lecture Notes in Computer Science, 3517
Release date:	May 2005
First published:	2005
Editors:	Henry S. Baird • Daniel P. Lopresti
Dimensions:	235 x 155 x 8mm (L x W x T)
Format:	Paperback
Pages:	596
Edition:	2005 ed.
ISBN-13:	978-3-540-26001-1
Categories:	Books > Computing & IT > Internet > Network computers Books > Computing & IT > Applications of computing > Pattern recognition Books > Computing & IT > Social & legal aspects of computing > Human-computer interaction Books > Computing & IT > Computer hardware & operating systems > Operating systems & graphical user interfaces (GUIs) > General Books > Computing & IT > Applications of computing > Databases > General Books > Computing & IT > Applications of computing > Image processing > General
LSN:	3-540-26001-3
Barcode:	9783540260011

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