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- W2510178217 abstract "We propose a novel cognitive biometrics modality based on written language-usage of an individual. This is a feasibility study using the Internet-scale blogs, with tens of thousands of authors to create a cognitive fingerprint for an individual. Existing cognitive biometric modalities involve learning from obtrusive sensors placed on human body. Our modality is based on the characteristic pattern of how individuals express their thoughts through written language. The problems of cognitive authentication (1:1 comparison of genuine versus impostor) and identification (1:n search) are formulated. We detail the algorithms to learn a classifier to distinguish between genuine and impostor classes (for authentication) and multiple classes (for identification). We conclude that a cognitive fingerprint can be successfully learnt, using stylistic (writing style), semantic (themes), and syntactic (grammatical) features extracted from blogs. Our methodology shows promising results (with 79% as the area under the ROC (AUC) in case of authentication). For identification, the individual class accuracies are up to 90%. We performed stricter tests to see how our system performs for unseen user, and report the accuracies of 72% (genuine) and 71% (impostor). Such a study lays the groundwork for building alternative cognitive systems. The modality, presented here, is easy to obtain, unobtrusive and needs no additional hardware." @default.
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- W2510178217 date "2017-01-01" @default.
- W2510178217 modified "2023-10-17" @default.
- W2510178217 title "Cognitive-Biometric Recognition From Language Usage: A Feasibility Study" @default.
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- W2510178217 doi "https://doi.org/10.1109/tifs.2016.2604213" @default.
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