“…Medical diagnosis is considered to be a convenient support tool in clinical medicine that helps physicians to determine the most possible disease and give appropriate medicated figures on the basis of a set of given symptoms. In the last few years, numerous approaches have been introduced to address medical diagnosis problems in an efficient way, including learning machine (Gürbüz & Kılıç, 2014;Qiang, Ge, Zhao, Zhang, & Tang, 2017), case-based reasoning (Chattopadhyay, Banerjee, Rabhi, & Acharya, 2013;Park, Kim, & Chun, 2006), Bayesian network (Zarikas, Papageorgiou, & Regner, 2015), and statistical or pattern recognition methods (Hemanth, Anitha, & Ane, 2017;Wolfers, Buitelaar, Beckmann, Franke, & Marquand, 2015), among others. Nonetheless, a crucial issue in medical practice is that patients' original information is usually imprecise and uncertain because the collection of information is expensive, time-consuming, and even harmful to patients.…”