Design of a Moving Substructure for an Armored Robot for Complex Disasters*. - Jae Ho Jang; Jin-Ho Suh; Hyun Chul Kong; Sang Il Lee; Dong Min Kim (UR, 2019)

Deeply Equal-Weighted Subset Portfolios. - Sang Il Lee (CoRR, 2020)

Threshold-based portfolio: the role of the threshold and its applications. - Sang Il Lee; Seong Joon Yoo (J. Supercomput., 2020)

Multimodal deep learning for finance: integrating and forecasting international stock markets. - Sang Il Lee; Seong Joon Yoo (J. Supercomput., 2020)