Journal
ADVANCES IN ARTIFICIAL INTELLIGENCE, AI 2016
Volume 9673, Issue -, Pages 21-32Publisher
SPRINGER-VERLAG BERLIN
DOI: 10.1007/978-3-319-34111-8_3
Keywords
Keystroke dynamics; Biometrics; Person authentication; Machine learning; One-class classification; Support vector machine
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One-Class SVM is an unsupervised algorithm that learns a decision function from only one class for novelty detection: classifying new data as similar (inlier) or different (outlier) to the training set. In this article, we have applied the One-Class SVM to Keystroke Dynamics pattern recognition for user authentication in a remote evaluation system at Laval University. Since all of their students have a short and unique identifier at Laval University, this particular static text is used as the Keystroke Dynamics input for a user to build our own dataset. Then, we were able to identify weaknesses of such a system by evaluating the recognition accuracy depending on the number of signatures and as a function of their number of characters. Finally, we were able to show some correlations between the dispersion and mode of distributions of features characterizing the signatures and the recognition rate.
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