“…In literature we can find many methods to design a structure and select parameters of neuro-fuzzy systems (see, e.g., Kim et al, 2006;Angelov and Filev, 2004;Medasani et al, 1998;Rutkowski and Cpałka, 2005;Starczewski et al, 2010;Malchiodi and Pedrycz, 2013;Cpałka, 2009a;2009b;Cpałka et al, 2014;2013). In this paper we used the (λ + μ) evolutionary strategy, which belongs to the group of population based algorithms.…”