Trace Ratio Optimization for High-Dimensional Multi-Class Discrimination. - Jeongyoun Ahn; Hee Cheol Chung; Yongho Jeon (J. Comput. Graph. Stat., 2021)

Subspace rotations for high-dimensional outlier detection. - Hee Cheol Chung; Jeongyoun Ahn (J. Multivar. Anal., 2021)

Unsupervised outlier detection using random subspace and subsampling ensembles of Dirichlet process mixtures. - Dongwook Kim; Juyeon Park; Hee Cheol Chung; Seonghyun Jeong (Pattern Recognit., 2024)