Refinement of the structure of knowledge base by learning. - Chengjiang Mao; Jiarong Hong (ICTAI, 1991)

THOUGHT: An Integrated Learning System for Acquiring Knowledge Structure. - Chengjiang Mao (ML, 1992)

Semi-Deterministic Reasoning. - Chengjiang Mao (AAAI/IAAI, Vol. 2, 1996)