TY - JOUR AB - Purpose– To improve the performance of the krill herd (KH) algorithm, in this paper, a series of chaotic particle-swarm krill herd (CPKH) algorithms are proposed for solving optimization tasks within limited time requirements. The paper aims to discuss these issues. Design/methodology/approach– In CPKH, chaos sequence is introduced into the KH algorithm so as to further enhance its global search ability. Findings– This new method can accelerate the global convergence speed while preserving the strong robustness of the basic KH. Originality/value– Here, 32 different benchmarks and a gear train design problem are applied to tune the three main movements of the krill in CPKH method. It has been demonstrated that, in most cases, CPKH with an appropriate chaotic map performs superiorly to, or at least highly competitively with, the standard KH and other population-based optimization methods. VL - 42 IS - 6 SN - 0368-492X DO - 10.1108/K-11-2012-0108 UR - https://doi.org/10.1108/K-11-2012-0108 AU - Wang Gai-Ge AU - Hossein Gandomi Amir AU - Hossein Alavi Amir PY - 2013 Y1 - 2013/01/01 TI - A chaotic particle-swarm krill herd algorithm for global numerical optimization T2 - Kybernetes PB - Emerald Group Publishing Limited SP - 962 EP - 978 Y2 - 2024/04/19 ER -