Biogeography based optimization: A review

Biogeography based optimization is a nature oriented concept. It extracts the idea of optimization from the way how species are distributed in various geographical areas. Various habitats are differentiated on the basis of habitat suitability index which determines strength of organisms in particular habitat. So habitat having highest habitat suitability index is known as best habitat. The same concept is used to derive the biogeography based optimization. A solution having the highest habitat suitability index is considered to be best and rest of all candidate solutions are modified according to the best solution. Original BBO has very limitations such as applicability in continuous domain, slow convergence speed etc which have been improved in the later years. This paper represents basic biogeography based optimization and its modified versions which aims at improving the original BBO.