Expert-Based Method of Integrated Waste Management Systems for Developing Fuzzy Cognitive Map - Complex System Modelling and Control Through Intelligent Soft Computations - page 125

Fig. 4 Bacterial mutation

local search step. The usage of the gradient-based local search algorithm (Leven-
berg-Marquart, LM) increased the convergence speed. The modi ed version of

BMA (G á l et al. 2008 ) is able to handle the knot order violation of LM, and uses a

more ef cient operator execution order as well. Other researchers tried to shorten

the optimisation speed with modi ed, parallel gene transfer operator (Hatw á gner

and Horv th 2011 , 2012a ). BEA lacks of an operator that maintains the genetic

diversity in the successive populations and this problem become more important if
the operators are parallelised. A possible solution is described in Hatw

á

á gner and

Horv á th ( 2012a ). The following section describes the results of the simulation.