Correlation Filters for Facial Recognition Login Access Control. - Daniel E. Riedel; Wanquan Liu; Ronny Tjahyadi (PCM (1), 2004)

A Biometric Approach to Linux Login Access Control. - Adam J. Gandossi; Wanquan Liu; Ronny Tjahyadi (ICARCV, 2006)

A Fast Feature-based Dimension Reduction Algorithm for Kernel Classifiers. - Senjian An; Wanquan Liu; Svetha Venkatesh; Ronny Tjahyadi (Neural Process. Lett., 2006)

Face Recognition via the Overlapping Energy Histogram. - Ronny Tjahyadi; Wanquan Liu; Senjian An; Svetha Venkatesh (IJCAI, 2007)

Face recognition based on ordinal correlation. - Ronny Tjahyadi; Wanquan Liu; Senjian An; Svetha Venkatesh (Int. J. Intell. Syst. Technol. Appl., 2007)