Artificial root foraging optimizer algorithm with hybrid strategies

In this work, a new plant-inspired optimization algorithm namely the hybrid artificial root foraging optimizion (HARFO) is proposed, which mimics the iterative root foraging behaviors for complex optimization. In HARFO model, two innovative strategies were developed: one is the root-to-root communication strategy, which enables the individual exchange information with each other in different efficient topologies that can essentially improve the exploration ability; the other is co-evolution strategy, which can structure the hierarchical spatial population driven by evolutionary pressure of multiple sub-populations that ensure the diversity of root population to be well maintained. The proposed algorithm is benchmarked against four classical evolutionary algorithms on well-designed test function suites including both classical and composition test functions. Through the rigorous performance analysis that of all these tests highlight the significant performance improvement, and the comparative results show the superiority of the proposed algorithm. (c) 2016 The Authors. Production and hosting by Elsevier B. V. on behalf of King Saud University. This is an open access article under theCCBY-NC-NDlicense (http://creativecommons.org/licenses/by-nc-nd/4.0/).National Natural Science Foundation of Distinguished professor of special projects of Liaoning Province [2013204]; Natural Science Foundation of Liaoning Province [2015020002, 2015020046]SCI(E)ARTICLE2268-2752