计算机科学 ›› 2014, Vol. 41 ›› Issue (9): 285-289.doi: 10.11896/j.issn.1002-137X.2014.09.054
余娟,贺昱曜,冯晓华
YU Juan,HE Yu-yao and FENG Xiao-hua
摘要： 软硬件划分是软硬件协同设计中的关键步骤,为NP难问题。分布估计算法可以解难优化问题,具有很好的全局搜索能力,但存在局部搜索能力差、种群多样性易失问题。针对此问题,对分布估计算法进行改进,对精英解进行克隆选择以加强局部搜索能力,对概率模型进行修正以改善种群多样性损失问题。同时,针对划分问题提出一种不可行解的修复方法。将改进后的分布估计算法应用于软硬件划分问题, 并与现有算法做比较,结果表明所提算法在不同的约束条件下均可获得更好的优化结果。
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