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JSP--E-T--GA
针对带有交货期窗口硬约束,并对提前/拖期零件进行惩罚的一类作业车间调度问题,设计了一种改进型遗传算法EGA。交货期窗口硬约束是指每个零件均有交货期和deadline,零件可以在交货期后完工,但绝不能超出deadline。EGA采用“逆向后推”和“顺向前拉”相结合的两阶段求解策略。针对部分染色体在解码过程中违反交货期窗口硬约束而产生非法解的问题,采用基于关键路径的染色体修复方法来调整染色体基因序列,以期实现在满足交货期窗口硬约束的同时降低零件拖期成本;在保持第一调度阶段拖期成本不变的基础上,采用基于逆向重调度的目标值修订方法来延迟零件开工时间,以减小成品提前库存成本。(This paper deals with the job shop scheduling problem with due window to minimize the sum of weighted earliness and weighted tardiness of jobs. This due window is a time duration between the due date and the latest acceptable completion date, namely dealine, of a job. Penalties are incurred if jobs are completed within the due window and the illegal schedule will occur if one job is finished after its deadline. A new Enhanced Genetic Algorithm (EGA), based on a two phase schedule mechanism was introduced. To avoid the violations of due window constraint and simultaneously reduce tardiness costs, a chromosome repair method based on critical paths was designed to adjust chromogene sequence. Then, on keeping tardiness costs unchanged, an objective value revision method based on reverse rescheduling was put forward to delay job release date for reducing earliness costs introduced by each job. )
- 2012-04-29 21:39:36下载
- 积分:1
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a-priori-snr
matlab code for wiener filter noise removal
- 2013-01-21 23:34:43下载
- 积分:1
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carboard
基于MATLAB的车牌识别系统,附有源程序代码和一幅图片例子(car board localization)
- 2010-06-06 13:34:49下载
- 积分:1
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caih
说明: 求出最小逼近的算法,帮同学写的直接就可以运行 (Find the lowest approximation algorithm, to help students write directly on the run)
- 2011-03-29 22:26:49下载
- 积分:1
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1
说明: 遗传算法 最优路线求解问题 机器人算法 单路径(the way of the best ,ues matlab )
- 2012-05-01 17:31:55下载
- 积分:1
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TempC
simulates the temperature distribution in a rod.
- 2011-08-27 22:54:25下载
- 积分:1
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radio
辐射边界和定温边界条件下,二维矩形平板的温度场数值模拟。(Radiation boundary and constant temperature boundary conditions, two-dimensional rectangular plate temperature field numerical simulation.)
- 2013-07-22 18:22:42下载
- 积分:1
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mohu1
利用matlab软件对图形进行模糊处理,得到运动模糊图像(Using matlab software graphics obfuscated to get motion-blurred images)
- 2013-08-22 17:07:51下载
- 积分:1
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Matlab-File-Exchange-Center
实现希尔伯特-黄变换的功能,并带有一段测试数据。希尔伯特-黄变换是使用EMD分解将信号分解为本征模态函数(IMF),然后求得IMF分量的瞬时频率。其对于非稳态和非线性信号具有优良的效果。(The function plot_hht is a realization of the Hilbert-Huang transform (HHT). The HHT decomposes a signal into intrinsic mode functions (or IMFs), and obtain the instantaneous frequency data. It is designed to work well for data that are nonstationary and nonlinear.)
- 2013-12-25 22:22:50下载
- 积分:1
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fdtd
fdtd 的matlab GUI编程,一维(MUR吸收边界)二维三维集合(fdtd the matlab GUI programming, one-dimensional (MUR absorbing boundary) a collection of two-dimensional three-dimensional)
- 2010-11-11 22:31:37下载
- 积分:1