Defuzzification out(x)=∑k=1Rκkbk(x)∑l=1Rκlbl(x)wkout(x)=\sum_{k=1}^R \frac{\kappa_k b_k(x)}{\sum_{l=1}^R \kappa_l b_l(x)} w_kout(x)=k=1∑R∑l=1Rκlbl(x)κkbk(x)wk with RRR the number of rules and κ\kappaκ the belief factors ∑k=1Rκk=1κk>0.\sum_{k=1}^R \kappa_k=1 \quad \kappa_k>0.k=1∑Rκk=1κk>0.