Additive Decomposition of Fuzzy Quantities. - Dug Hun Hong; Hae Young Do (Inf. Sci., 1996)

Fuzzy system reliability analysis by the use of Tω (the weakest t-norm) on fuzzy number arithmetic operations. - Dug Hun Hong; Hae Young Do (Fuzzy Sets Syst., 1997)

Fuzzy linear regression analysis for fuzzy input-output data using shape-preserving operations. - Dug Hun Hong; Sungho Lee; Hae Young Do (Fuzzy Sets Syst., 2001)

Fuzzy least-squares linear regression analysis using shape preserving operations. - Dug Hun Hong; Jae-Kee Song; Hae Young Do (Inf. Sci., 2001)