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DE优化函数程序
大坝变形的精确预测对其安全评价方面发挥着重要作用。为了进一步提高大坝变形预测精度，提出了一种改进的灰狼算法优化支持向量机的预测模型。通过引入非线性收敛因子和采用动态加权策略，提升灰狼算法优化支持向量机惩罚因子和核函数参数的能力，并以优化的参数来建立支持向量机大坝变形预测模型。选取实例数据，在与布谷鸟算法、差分进化算法、粒子群算法、基本灰狼算法优化的支持向量机预测比较中，实验结果表明，改进的灰狼算法对支持向量机参数的优化是有效的，可以提高大坝变形预测精度。(Accurate prediction of dam deformation plays an important role in its safety evaluation. In order to further improve the prediction accuracy of dam deformation, an improved grey Wolf algorithm is proposed to optimize the prediction model of support vector machine. By introducing the nonlinear convergence factor and using the dynamic weighting strategy, the gray wolf algorithm is improved to optimize the capacity of the support vector machine penalty factor and the kernel parameter, and the support vector machine dam deformation prediction model is established with the optimized parameters. The experimental results show that the Improved Grey Wolf algorithm is effective for the optimization of support vector machine parameters, and it can improve the accuracy of the deformation prediction of the dam.)
- 2018-06-28 09:53:07下载
- 积分：1
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matlab_bgl.part01
节点度是指和该节点相关联的边的条数，又称关联度。
特别地，对于有向图，
节点的入度 是指进入该节点的边的条数;
节点的出度是指从该节点出发的边的条数。(Node degree refers to the number of edges associated with the node, also known as the degree of association.
In particular, for a directed graph,
The ingress of a node is the number of edges entering the node;
The out-degree of a node is the number of edges that start from that node.)
- 2018-07-23 21:52:37下载
- 积分：1
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分数阶混沌
matlab仿真程序，可以直接运行，是分数阶混沌研究的有效资料(Matlab simulation program, which can run directly, is an effective data of fractional chaos research)
- 2020-10-07 14:57:36下载
- 积分：1
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bilidaoyinfa
通过matlab编程实现了比例导引法制导的弹目飞行的轨迹生成(Trajectory Generation of Missile Guided by Proportional Guidance Method)
- 2018-12-09 21:33:24下载
- 积分：1
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IEEE39_BPA_PSSE
基于bpa的IEEE39节点算例，包含暂态数据和稳态数据(Example of IEEE39 node based on BPA)
- 2021-06-21 19:30:01下载
- 积分：1
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SA-SVM
模拟退火算法与支持向量机算法的结合，提高了效率与精度(The combination of simulated annealing algorithm and support vector machine algorithm improves efficiency and accuracy.)
- 2018-09-25 15:26:09下载
- 积分：1
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181704220922255
说明： 将遗传算法及POS算法合并优化，可避免产生局部极小(The genetic algorithm and POS algorithm are combined and optimized)
- 2020-09-21 21:35:41下载
- 积分：1
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cohesive inp和for子程序
ABAQUS 有限元子程序，粘弹性本构，蠕变应力松弛测试拟合结果
cohesive 粘接单元，用于分层分析的子程序，帮助初学者快速掌握ABAQUS的内聚体单元应用(ABAQUS umat creep stress relaxation fitting result
Cohesive bonding unit, used for hierarchical analysis of the subroutine, to help beginners quickly grasp the ABAQUS cohesive unit application)
- 2018-05-02 14:21:50下载
- 积分：1
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sir
基于netlogo环境下的建模仿真，实现SIR模型的病毒传播(Based on netlogo environment modeling and simulation, to achieve the SIR model of virus transmission)
- 2017-08-14 11:26:01下载
- 积分：1
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VUMAT-3D
说明： 关于3维应力应变的金属本构方程子程序代码显式vumat(On the Subprogram Code of 3-D Stress-Strain Constitutive Equation of Metals Explicit VUMA)
- 2019-03-20 13:11:30下载
- 积分：1
