0438100 - ÚI 2015 RIV HU eng C - Konferenční příspěvek (zahraniční konf.)
Kalina, Jan - Schlenker, A. - Kutílek, P.
Highly Robust Analysis of Keystroke Dynamics Measurements.
SAMI 2015. Budapest: IEEE Hungary Section, 2015, s. 133-138. ISBN 978-1-4799-8220-2.
[SAMI 2015. International Symposium on Applied Machine Intelligence and Informatics /13./. Herl'any (SK), 22.01.2015-24.01.2015]
Grant ostatní: GA ČR(CZ) GA13-01930S; CESNET Development Fund(CZ) 494/2013; SVV(CZ) 260034
Institucionální podpora: RVO:67985807
Klíčová slova: robust classification * regularization * keystroke dynamics
Kód oboru RIV: IN - Informatika
DOI: https://doi.org/10.1109/SAMI.2015.7061862

Standard classification procedures of both data mining and multivariate statistics are sensitive to the presence of outlying values. In this paper, we propose new algorithms for computing regularized versions of linear discriminant analysis for data with small sample sizes in each group. Further, we propose a highly robust version of a regularized linear discriminant analysis. The new method denoted as MWCD-L2-LDA is based on the idea of implicit weights assigned to individual observations, inspired by the minimum weighted covariance determinant estimator. Classification performance of the new method is illustrated on a detailed analysis of our pilot study of authentication methods on computers, using individual typing characteristics by means of keystroke dynamics.
Trvalý link: http://hdl.handle.net/11104/0241581