Korean Stochastic Word-Spacing with Dynamic Expansion of Candidate Words List. - Mi-young Kang; Sung-Ja Choi; Ae-sun Yoon; Hyuk-Chul Kwon (IJCNLP, 2004)

Stochastic Korean Word-Spacing with Smoothing Using Korean Spelling Checker. - Hyuk-Chul Kwon; Mi-young Kang; Sung-Ja Choi (Int. J. Comput. Process. Orient. Lang., 2004)

A Security Evaluation and Testing Methodology for Open Source Software Embedded Information Security System. - Sung-Ja Choi; Yeon-hee Kang; Gang-Soo Lee (ICCSA (2), 2005)

Entity Based Message Authentication System. - Young-Soo Kim; Sung-Ja Choi; Gang-Soo Lee; Geuk Lee (KES-AMSTA, 2007)

3D Viewer Platform of Cloud Clustering Management System: Google Map 3D. - Sung-Ja Choi; Gang-Soo Lee (FGIT-FGCN (2), 2010)

Prototype Design and Implementation of an Automatic Control System Based on a BCI. - Sung-Ja Choi; Byeong-Gwon Kang (Wirel. Pers. Commun., 2014)

Orthogonal Dual Polarization GPR Measurement for Detection of Buried Vertical Fault. - Takao Kobayashi; Kyoungtae Ko; Sung-Ja Choi; Jin-Hyuck Choi (IEEE Geosci. Remote. Sens. Lett., 2022)