Modeling a fuzzy rule based expert system combining positive and negative knowledge for medical consultations using the importance of symptoms. - Mai Thi Nu; Nguyen Hoang Phuong; Kaoru Hirota (IFSA-SCIS, 2017)

STRESSDIAG: A Fuzzy Expert System for Diagnosis of Stress Types Including Positive and Negative Rules. - Mai Thi Nu; Nguyen Hoang Phuong; Hoang Tien Dung (IFSA/NAFIPS, 2019)