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Adaptiveconstrainedparticleswarm
针对粒子群优化算法应用于约束优化问题时易陷入局部极小值的问题, 提出了一种改进的粒子群优化算
法. 该算法综合了约束优化问题的目标函数值和约束函数的违反度值作为粒子群优化算法的双适应度值, 采用了
双适应值动态判断粒子群优化算法中粒子的优劣. 违反度值的计算引入了自适应加权系数, 相应地提出了调整各
权系数的自适应策略, 并改进了粒子群优化算法的粒子竞争选择策略, 拓展了粒子群优化算法的单适应值的应用
范围.应用约束自适应粒子群优化算法实现了城市水厂的节能优化调度. 结果表明, 该算法收敛速度快且结果可
靠. 粒子群优化算法为解决工程约束优化问题提供了一条可行途径(Considering that theparticleswarmoptimization( PSO) algorithmcanbeeasily trappedinto the
local minimal valueinconstrainedoptimizationproblems, amodifiedconstrainedparticleswarmoptimiza
tionalgorithmwasproposed. Theobjective functionvalue andthe violationvalue of constraint functions
wereeffectively combinedto formtwofitnesses, andthefitnesseswereadoptedto estimate if theparticle
wassuperior or not ina dynamicway. Theadaptiveweight functionwasadoptedinthe calculationof the
violationvalue. The strategy of keeping anadaptive relationof weight coefficientswasproposed, andthe
strategyof swarmtournament selectionwasimproved. Theapplicationlocalizationsof thesinglefitnessof
PSOwerewidenedaswell. ThemodifiedconstrainedPSOalgorithmwasappliedtosolveenergyoptimiza
tionproblemsof theurbanwater supplyprocess, whichshowedthat theconvergent speedof thealgorithm
isfast andthe result isvalid. Afeasibleapproachto solvetheindustrial constraint optimizationproblems
withPSOwasprovided.)
- 2012-04-27 20:26:28下载
- 积分:1
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haar-wave
matlat 环境下haar小波分析,可以改写成C 语言
(haar wave analysis)
- 2014-09-26 10:06:34下载
- 积分:1
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segEEtest
my_seg_for_post_filtering_it is used for segmentation
- 2008-01-19 16:20:22下载
- 积分:1
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pcakpca
这是我的毕业设计,是一个有关PCA与KPCA对数据进行处理提取其特征的程序,采用C++与MATLAB设计而成。(This is my graduation project, a PCA and KPCA on the data processing procedures for extracting the features using C++ and MATLAB design from.)
- 2010-10-22 09:28:28下载
- 积分:1
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ssaaxa
this source code is sdsasa matlab
- 2013-08-04 18:05:16下载
- 积分:1
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QAM
QAM 正交频率调制,调制及解调全部代码,由MATLAB实现整个通信系统。(QAM orthogonal frequency modulation, modulation and demodulation of all the code from MATLAB entire communication system.)
- 2011-11-15 16:08:48下载
- 积分:1
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waveguide_dispersion
三层平板光波导,计算有效折射率,求解波导色散,(Three planar waveguides, calculate the effective refractive index of the waveguide dispersion solution,)
- 2021-01-30 15:48:35下载
- 积分:1
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QC_codes
Construct the short length of QC LDPC codes without girth 4 and girth 6(The Program to construct the short length of QC LDPC codes without girth 4 and girth 6
Copyright (C) Yang XIAO, Jun FAN, BJTU, July 26, 2007, E-Mail: yxiao@bjtu.edu.cn.
This program presents an approach [1] for constructing the short length of LDPC codes with girth 8. First, we design 3 submatrices with different shifting functions given by our schemes, then combine them into a matrix according to our approach, finally, expand the matrix into a desired parity-check matrix using identity matrices and cyclic shift matrices of the identity matrices.
The simulation results in AWGN channels show that the codes which can be obtained by the generator matrix derived from this check matrix for encoding the random information bits are as good as random LDPC codes [1].
Ref:
[1] J. Fan, Y. Xiao, “A design of LDPC codes with large girth based on the sub-matrix shifting”, IET International Conference on Wireless Mobile and Multimedia Networks Proceedings (ICWMMN 2006), (CP525), p. )
- 2009-05-28 16:00:14下载
- 积分:1
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HEED
HEED algorithm on Matlab
- 2014-08-19 07:55:28下载
- 积分:1
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programs2e-CARL-WALSH
Supporting matlab programs for the Monetary Theory and Policy, 3nd. ed., by carl walsh
- 2011-10-13 13:14:37下载
- 积分:1