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基于分支定界和神经网络的实时调度策略
引用本文:宋晔,杨根科.基于分支定界和神经网络的实时调度策略[J].计算机仿真,2008,25(12).
作者姓名:宋晔  杨根科
作者单位:上海交通大学自动化系,上海,200240
基金项目:国家自然科学基金  
摘    要:为解决一些对精度和实时性要求较高的调度问题,设计一个基于分枝定界算法和人工神经网络的实时调度算法.策略先使朋分枝定界算法来找到m个作业的最佳排序.在生成足够多的排序以后,将排序作为训练样本来训练一个m维人工神经网络,从而得到一个m维的人工种经网络主矩阵.在实际的乍产环境中,先对实际到达的n(n>m)个作业进行分组,再利用离线生成的人工神经网络主矩阵对每个分组进行初始排序.最后将每个分组看作一个整体,根据Palmer算法得到n个作业的最终排序.仿真表明该策略具有较好的实时性,同时也能达到较高的精确性.

关 键 词:分支定界法  神经网络  启发式算法  实时调度

Real Time Scheduling Using Branch-Bound Algorithm and Artificial Neural Network
SONG Ye,YANG Gen-ke.Real Time Scheduling Using Branch-Bound Algorithm and Artificial Neural Network[J].Computer Simulation,2008,25(12).
Authors:SONG Ye  YANG Gen-ke
Affiliation:SONG Ye,YANG Gen-ke(Automation Department,Shanghai Jiaotong University Shanghai200240,China)
Abstract:A scheduling method based on branch-bound algorithm and artificial neural network is designed to solve the scheduling problem with strict requirement for real time and accuracy. In this method, branch bound algorithm is used to find a sequence for m jobs. After enough sequences are obtained, those sequences are utilized as training examples to train neural network. Then, a matrix called neural network matrix is obtained. In the real production environment, n (n>m) jobs are divided into several small groups....
Keywords:Branch-bound algorithm  Neural network  Heuristic algorithm  Real time scheduling  
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