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A keystroke biometric system was extended to accommodate touchscreen keystroke features. In addition to the usual key-press and key-release timing features available from mechanical keyboards, the touchscreen features also included pressure, screen location, accelerometer, and gyroscope information. Short numeric input data, ten-digit numeric strings, were collected from 52 participants on identical...
Keystroke biometric samples are often collected under various conditions, such as different device types, increasing levels of practice through repetition, and subject impairment. Cross-domain comparisons, in which query samples are collected under different conditions than the template, generally lead to degraded performance. The difficulty in comparing samples from different domains can be viewed...
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