  ANN model is used to estimate the multiplicity per rapidity for charged pions
and kaons observed in various high-energy experiments from central Au+Au
collisions with energies ranging from 2-200 GeV, and then compared to available
experimental data, including RHIC-BRAHMS, and the future facilities at NICA and
FAIR. We also used Landau hydrodynamical approach, which has a better
describtion for the evolution of hot and dense matter produced in
ultra-relativistic heavy-ion collisions. The approach is fitted to both results
estimated from experiment and ANN simulation. We noticed that the Landau model
accurately reproduces the entire range of multiplicity per rapidity for all
created particles at all energies. Also ANN model can reproduce the
multiplicity per rapidity very well for all considered particles.
