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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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chenxiaocen
盲信号分离(BSS)指在源信号混合和传输信道未知的情况下,只利用接收天线的输出观测混合信号抽取源信号的方法。本文简要阐述了常用的瞬时混合盲信号分离的LMS与RLS自适应算法,对RLS自适应算法重点研究分析了基于普通梯度与自然梯度的两种算法,并通过仿真实验来分析比较几种方法的性能。(Blind signal separation (BSS) refers to the source signal and transmission channel mixing unknown circumstances, the only use of the receiving antenna output source signal observed mixed-signal extraction method. This paper describes commonly used blind source separation of instantaneous mixture of LMS and RLS adaptive algorithms, the RLS adaptive algorithm focuses on the analysis of general gradient and the natural gradient based on two algorithms, and through simulation experiments to compare several methods of analysis performance.)
- 2011-08-30 15:38:55下载
- 积分:1
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shuzituxiangchuli(matlab)
数字图像处理,冈萨雷斯著,一本很好的书,值得一看!而且本书为MATLAB版本,很具有参考价值。(Digital Image Processing, Gonzalez' s book, a very good book, worth a visit! And for the MATLAB version of the book, it is a reference value.)
- 2010-06-07 21:27:16下载
- 积分:1
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SARImgMatlab
SAR成像的算法,是一些比较基本的成像成像程序,对sar成像的入门应该比较有帮助的(SAR imaging algorithms, it is some of the more basic imaging imaging procedures, imaging sar entry should be more helpful)
- 2020-11-27 11:39:31下载
- 积分:1
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program
读入图像文件,生成索引图像
灰度图像
黑白图像
(Read into the image file, generate an index image gray image black and white images)
- 2010-08-20 11:28:42下载
- 积分:1
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ning123
MATLAB命令大全 挺管用的,具体看看吧,有实体书来着
- 2010-05-10 23:02:40下载
- 积分:1
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Decomposition_LU
将系数矩阵A转变成等价两个矩阵L和U的乘积 ,其中L和U分别是下三角和上三角矩阵。当A的所有顺序主子式都不为0时,矩阵A可以唯一的分解为A=LU。其中L是单位下三角矩阵,U是上三角矩阵。 (The coefficient matrix A into two matrices L and U is equivalent to the product, where L and U are lower triangular and upper triangular matrix. When A master style is not all the sequence is 0, the matrix A can only be decomposed into A = LU. Where L is unit lower triangular matrix, U is upper triangular matrix.)
- 2011-06-21 21:16:09下载
- 积分:1
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final-code
This paper presents a new approach to image segmentation using Pillar K-means algorithm. This
segmentation method includes a new mechanism for grouping the elements of high resolution images in order to
improve accuracy and reduce the computation time. The system uses K-means for image segmentation optimized by
the algorithm after Pillar. The Pillar algorithm considers the placement of pillars should be located as far from each
other to resist the pressure distribution of a roof, as same as the number of centroids between the data distribution. This
algorithm is able to optimize the K-means clustering for image segmentation in the aspects of accuracy and
computation time. This algorithm distributes all initial centroids according to the maximum cumulative distance metric.
This paper evaluates the proposed approach for image segmentation by comparing with K-means clustering
algorithm and Gaussian mixture model and the participation of RGB, HSV, HSL and CIELAB color spaces.
- 2014-08-18 13:27:11下载
- 积分:1
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ENCODE
对比LDPC Hamming 循环卷积码三种编码方式的误码率(Contrast BER LDPC Hamming codes are three circular convolution encoding)
- 2013-12-04 11:50:13下载
- 积分:1
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MATLAB
matlab图形图像处理的电子书籍,对于应用matlab进行图像采集和处理的工程师非常有用(matlab image processing graphics e-books, for the application of matlab image acquisition and processing of very useful Engineer)
- 2008-05-13 12:43:01下载
- 积分:1