P. Y. WuC. C. FangJ. M. ChangS. Y. KungPEI-YUAN WU2019-10-242019-10-24201621682267https://scholars.lib.ntu.edu.tw/handle/123456789/427773Cost-Effective Kernel Ridge Regression Implementation for Keystroke-Based Active Authentication Systemjournal article10.1109/tcyb.2016.25904722-s2.0-84981736617