Guofei Jiang Haifeng Chen Cristian Ungureanu Kenji Yoshihira Multiresolution Abnormal Trace Detection Using Varied-Length n-Grams and Automata. 86-97 2007 37 IEEE Transactions on Systems, Man, and Cybernetics, Part C 1 http://dx.doi.org/10.1109/TSMCC.2006.871569 db/journals/tsmc/tsmcc37.html#JiangCUY07