Mobile application usage is becoming an essential activity in many people's daily lives. Compared with PC internet, mobile internet usage is ubiquitous, temporally fragmented, and more context-dependent. Thus far research is limited on the mechanism of mobile app usage and the effects of...

Random Set Theory -- Random Multiple Objective Decision Making -- Bi-random Multiple Objective Decision Making -- Random Fuzzy Multiple Objective Decision Making -- Random Rough Multiple Objective Decision Making -- Methodological System for RLMODM -- Some Mathematical Aids -- Some Procedures