Abstract— In this paper, some problems of keystroke dynamics (KD) are presented. The substance and its use is introduced briefly. Firstly, the relationship between the distance metrics and the data model is analyzed. Then new distance based algorithm for keystroke dynamics classification is done to improve the quality of the process. Experimental results based on the sample data files proved better performance of the new distance metric. Especially including data files received from the device using the touch screen, such as smartphones.
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