3.2.3. EEHO-Ismaeel

Ismaeel et al. [116] proposed another enhanced elephant herding optimization algorithm with a constant function (EEHO-Ismaeel). In order to overcome the shortcomings of EHO. In EEHO-Ismaeel, two operators, the clan and separating operator, improved the exploitation abilities of the EEHO-Ismaeel algorithms. The CEC 2017 test benchmark functions were utilized to verify the performance of the three EEHO-Ismaeel versions (EEHO15, EEHO20, and EEHO25). The experimental results demonstrated that, in most cases, the EEHO-Ismaeel algorithms obtained better results compared with the other competitive algorithms, such as the PSO, bird swarm algorithm (BSA), and ant lion optimization (ALO) algorithms.
