Performance Evaluation Indicator (PEI): A new paradigm to evaluate the competence of machine learning classifiers in predicting rockmass conditions. - Mengqi Zhu; Marte Gutierrez; Hehua Zhu; J. Woody Ju; Sharmin Sarna (Adv. Eng. Informatics, 2021)

Tunnel condition assessment via cloud model-based random forests and self-training approach. - Mengqi Zhu; Hehua Zhu; Feng Guo; Xueqin Chen; J. Woody Ju (Comput. Aided Civ. Infrastructure Eng., 2021)