混合差分进化-和声搜索算法在结构工程中的应用

为了增强HS算法跳出局部最优的能力,将差分进化算法(DE)的变异和交叉引入到了HS算法中.这种改进的HS算法被称为混合差分进化-和声搜索(HDEHS),它既具有很强的收敛性,又能有效地防止自身陷入局部最优.实验结果表明,与文献中算法比较,HDEHS算法在解决结构工程优化问题中能够找到更好的解,它是解决结构工程优化问题的一个有效的选择.

Application of HDEHS Algorithm to Structural Engineering

To enable the HS (harmony search) algorithm to transcend its limited capability of local optimum, the mutating and crossing operations of DE (differential evolution) algorithm are introduced into the HS algorithm so as to improve the latter, i.e. the hybrid differential evolution-harmony search (HDEHS) algorithm. It is able to prevent the limitation of its local optimum effectively, besides its strong convergence. Experimental results revealed that the HDEHS algorithm as an efficient alternative can find out better solutions to the optimization problem of structural engineering in comparison to the methods as shown in earlier works.