Description: 本书首先介绍了MATLAB语言的程序设计的基本内容，在此基础上系统介绍了各个应用数学领域的问题求解，如基于MATLAB的微积分问题、线性代数问题的计算机求解、积分变换和复变函数问题、非线性方程与最优化问题、常微分方程与偏微分方程问题、数据插值与函数逼近问题、概率论与数理统计问题的解析解和数值解法等。还介绍了较新的非传统方法如模糊逻辑与模糊推理、神经网络、遗传算法、小波分析、粗糙集及分数阶微积分学等领域。本书可作为一般读者学习和掌握MATLAB语言的教科书，也可作为高校理工科各类专业的本科生和研究生学习计算机数学语言的教材和参考书，可供科技工作者、教师作为学习和应用MATLAB语言解决实际数学问题的参考资料，还可作为读者查询某数学问题求解方法的手册。-This book introduces the MATLAB language programming to the basic content, on the basis of this system introduces the various applications of mathematics problem solving, such as those based on MATLAB calculus, linear algebra problem solving by computer, integral transforms and complex variable function problems, nonlinear equations and optimization problems, ordinary differential equations and partial differential equation problem, data interpolation and function approximation problem, probability theory and mathematical statistics analytical solution and numerical solution. Also introduced a new non traditional methods such as fuzzy logic and fuzzy reasoning, neural network, genetic algorithm, wavelet analysis, rough sets and fractional calculus and other fields. This book can be used as ordinary readers to study and master the MATLAB language textbooks, also can be used as the University s science and engineering of various kinds of professional undergraduate and graduate study in c Platform: |
Size: 54010880 |
Author:詹瑞 |
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Description: 针对BP 算法易陷入局部极小、收敛速度慢等缺点，遗传算法是全局优化算法和具有很强的全局搜索能力，遗传算法优化BP 神经网络初始连接权值和阈值形成混合算法。以安徽宣城市为例,将汛期降水量作为预测对象，前期74 项大气环流特征量、500 hPa、100 hPa 月平均高度场、月平均海平面气压场和月平均海温场资料中选取预测因子，建立汛期降水短期气候预测模型。-BP algorithm is easy to fall into local minimum, slow convergence, genetic algorithm is a global optimization algorithm and has a strong global search ability, BP neural network genetic algorithm to optimize the initial connection weights and thresholds to form a hybrid algorithm. Rainfall in Xuancheng City in Anhui, for example, as the forecast object, early 74 atmospheric circulation characteristics, 500 hPa, 100 hPa month average height field, the monthly mean sea level pressure and monthly mean sea surface temperature data, select predictor , establish flood season precipitation short-term climate prediction model. Platform: |
Size: 379904 |
Author:mali |
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Description: 神经网络遗传算法函数极值寻优-非线性函数极值。-Genetic algorithm to optimize BP neural network- a non-linear function fitting. Platform: |
Size: 90112 |
Author:唐晓明 |
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Description: 神经网络遗传算法函数极值寻优-非线性函数极值 遗传算法典型实例-Neural network genetic algorithm function optimization extreme- typical examples of the non-linear function of the extreme genetic algorithm Platform: |
Size: 102400 |
Author:冯翔 |
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Description: 由于BP神经网络初始神经元之间的权值和阈值一般随机选择，因此容易陷入局部最小值。本方法使用遗传算法优化初始神经元之间的权值和阈值，并对比使用遗传算法前后的效果。-Since the initial BP neural network weights between neurons and thresholds generally random selection, it is easy to fall into local minimum. This method uses a genetic algorithm to optimize the initial weights between neurons and thresholds, and compare the results before and after the use of genetic algorithms. Platform: |
Size: 4096 |
Author:chongchong |
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Description: 遗传算法优化B P神经网络的目的是通过遗传算法得到更好的网络初始权值和阈值, 其
基本思想就是用个体代表网络的初始权值和阈值、 个体值初始化的B P神经网络的预测误差作为该个体的适应度值, 通过选择、 交叉、 变异操作寻找最优个体, 即最优的B P神经网络初始权值。除了遗传算法之外, 还可以采用粒子群算法、 蚁群算法等优化B P神经网络初始权值。-Genetic algorithm to optimize BP neural network is designed by means of genetic algorithms get better network initial weights and thresholds, the basic idea is to use individual represents the network' s initial weights and thresholds, the individual values initialized BP neural network prediction error as the individual' s fitness value, through selection, crossover and mutation to find the optimal individual, ie the optimal BP neural network initial weights. In addition to genetic algorithms, you can also use particle swarm optimization, ant colony algorithm to optimize BP neural network initial weights. Platform: |
Size: 52224 |
Author:吴江 |
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Description: 遗传算法的基本程序，主要的步骤，举例说明怎么应用遗传算法优化BP神经网络-GA basic procedures, main steps, illustrate how the application of genetic algorithm to optimize BP neural network Platform: |
Size: 54272 |
Author:sunyanchao |
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Description: BP神经网络，遗传算法，已经调试过了，我希望你能给我一些建议-BP neural network, genetic algorithm, has been debugging, I hope you can give me some advice Platform: |
Size: 1024 |
Author:王琳 |
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Search - neural network genetic algorithm