Towards Human Interactive Proofs in the Text-Domain

by: Richard Bergmair, Stefan Katzenbeisser

Information Security (2004), pp. 257-267.

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Abstract

We outline the linguistic problem of word-sense ambiguity and demonstrate its relevance to current computer security applications in the context of Human Interactive Proofs (HIPs). Such proofs enable a machine to automatically determine whether it is interacting with another machine or a human. HIPs were recently proposed to fight abuse of web services, denial-of-service attacks and spam. We describe the construction of an HIP that relies solely on natural language and draws its security from the problem of word-sense ambiguity, i.e., the linguistic phenomenon that a word can have different meanings dependent on the context it is used in. Keywords: HIP, CAPTCHA, text, natural language, linguistic, lexical, word-sense ambiguity, learning

@incollection{citeulike:1616897, abstract = {We outline the linguistic problem of word-sense ambiguity and demonstrate its relevance to current computer security applications in the context of Human Interactive Proofs (HIPs). Such proofs enable a machine to automatically determine whether it is interacting with another machine or a human. HIPs were recently proposed to fight abuse of web services, denial-of-service attacks and spam. We describe the construction of an HIP that relies solely on natural language and draws its security from the problem of word-sense ambiguity, i.e., the linguistic phenomenon that a word can have different meanings dependent on the context it is used in. Keywords: HIP, CAPTCHA, text, natural language, linguistic, lexical, word-sense ambiguity, learning}, author = {Bergmair, Richard and Katzenbeisser, Stefan }, citeulike-article-id = {1616897}, journal = {Information Security}, keywords = {captcha, wsd}, pages = {257--267}, posted-at = {2007-09-04 00:31:43}, priority = {2}, title = {Towards Human Interactive Proofs in the Text-Domain}, url = {http://www.springerlink.com/content/t8jmdgmttykaq5aj }, year = {2004} }

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TY - CHAP ID - citeulike:1616897 L3 - citeulike-article-id:1616897 TI - Towards Human Interactive Proofs in the Text-Domain JF - Information Security SP - 257 EP - 267 N2 - We outline the linguistic problem of word-sense ambiguity and demonstrate its relevance to current computer security applications in the context of Human Interactive Proofs (HIPs). Such proofs enable a machine to automatically determine whether it is interacting with another machine or a human. HIPs were recently proposed to fight abuse of web services, denial-of-service attacks and spam. We describe the construction of an HIP that relies solely on natural language and draws its security from the problem of word-sense ambiguity, i.e., the linguistic phenomenon that a word can have different meanings dependent on the context it is used in. Keywords: HIP, CAPTCHA, text, natural language, linguistic, lexical, word-sense ambiguity, learning KW - captcha KW - wsd AU - Bergmair, Richard AU - Katzenbeisser, Stefan PY - 2004/// UR - http://www.springerlink.com/content/t8jmdgmttykaq5aj ER -

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