“…Surveys span in many cases all kind of algorithms; however many of them have been proposed recently; it maybe because the year 2020 is iconic. The most numerous surveys are related with nature inspired algorithms Agarwal and Mehta [2014], Siddique and Adeli [2015], Sindhuja et al [2018], Krishnaveni [2019], , Yang [2020], Sureka et al [2020], Odili et al [2018], or bio-inspired algorithms Binitha and Sathya [2012], Pazhaniraja et al [2017], Amry and Al-Gaphari [2018], Del Ser et al [2019]; specific swarm intelligence algorithms and metaheuristics or population based algorithms Ruiz-Vanoye et al [2012], Xing and Gao [2019], , Ma et al [2019] Also, a review of applications of swarm intelligence has been made to establish more algorithms. Application of nature inspired algorithms can be found in several areas, not only optimization; however from all natural inspired algorithms, swarm intelligent are the most highlighted.…”