Interval Type-2 Fuzzy Logic Adaptive Modelling for Human Operators Undergoing Mental Stress

An Adaptive General Type-2 Fuzzy Logic Approach for Psychophysiological State Modeling in Real-Time Human–Machine Interfaces

“…The mental arithmetic applied in this research is based on the MATLAB ® GUI app similar to the app used in [15], [16], [29], [30]. The participants in this research are ten (10) healthy students from the University of Sheffield aged from 22 to 30.…”

“…The main idea of the type-reduction algorithm is to keep the prediction consistently corresponding to the tendency measured from the state tracking. Taking Equation (15) as an example, y k is a maximised prediction. Since the probability of switching to a better state dominates, the likelihood for y n from a back state decreases, and for y n from a front state increases.…”