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大卫佛朗哥


最后看见：3天前

Federal University of Tocantins

38 自2014年以来的总捐款

Industrial Engineer from the Pontifical Catholic University of Paraná (2008/2012) and Master in Production and Systems Engineering also from the Pontifical Catholic University of Paraná (2013/2015). PhD in Production and Systems Engineering at Pontifical Catholic University of Paraná (2015/2019). Works in the area of Production Engineering, with emphasis on Operations Research, sub-areas: Modeling, Analysis and Simulation of Productive Systems; Decision-making processes; Time Series Analysis and Forecasting; Intelligent Systems (Artificial Neural Networks); Mathematical Programming and Optimization (Linear, Integer, Mixed and Non-Linear Programming; Global Optimization: Genetic Algorithms, Simulated Annealing, Tabu Search, Direct Search, Multiobjective Optimization, Swarm Optimization, among other techniques); and Data Mining (Big Data).

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Question


Why is the Neural Network training slow when I don't use the Matlab Toolbox?
I am trying to optimize neural weights using the standalone Levenberg-Marquard algorithm, but the ANN training is much slower th...

3 days ago | 0 answers | 0

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如何使用神经网络的训练有素的重量
我发现答案（输出和yy等于）：％模拟神经网络清晰Close Clc rng默认[x，y] = sim ...

3个月前|0.

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如何从神经网络工具箱中使用权重和偏置进行分类
我发现答案（输出和yy等于）：％模拟神经网络清晰Close Clc rng默认[x，y] = sim ...

3个月前|0.

|公认

Question


如何使用神经网络的训练有素的重量
如何使用神经网络的训练有素的权重来模拟分类问题的输出？

3个月前|1答案|0.

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answer

Question


Matlab returns which epoch's weights of a Neural Network training?
如果我训练了我的神经网络，直到10个迭代和我最好的验证时期为3，Matlab将从10中返回权重...

4个月前|0答案|0.

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i want to train neural network with nntool but input and target size donot match error occur
输入和目标必须是4x81和1x81。使用转置函数。

4个月前|0.

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哪个时代是列车功能的培训结果
For a shallow neural network you can use the code: net.trainParam.max_fail = x where x is the number of fails in increase the ...

4个月前|0.

Question


如何从神经网络工具箱中使用权重和偏置进行分类
I found a code in Matlab Answers for regression: x = 0:0.1:10; % input dimension 1x101 y = sin(x); % output dimension 1x101 ...

4个月前|1答案|0.

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Matlab如何计算Polyshape的质心？
来自http://paulbourke.net/gometry/polygonmesh/：在哪里：

8个月前|0.

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Matlab如何计算Polyshape的质心？
我正在使用CentroID命令找到Polyshapes的质心，但在文档上我没有找到Matlab如何计算......

8个月前|1答案|0.

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answer

Question


如何检测RGB三联体中的暗颜色？
我正在绘制具有许多细分和颜色的地图。我想自动使用对比颜色机智的边界......

8个月前|1答案|0.

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answer

Question


如何使用voronoi图分区（离散化）周围的空间？
I have a problem: The plot shows a 399 cities locations and the Voroni Diagram (in latitude and longitude coordinates). The qu...

8个月前|1答案|1

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answer

Question


How can I convert a shapefile boundaries to lat and lon?
I have a shapefile of counties subdivisions (Paraná State, Brazil) and I would like to extract an array of bounding lat and lon ...

8个月前|0答案|0.

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如何计算欧几里德距离Beetwen所有纬度经度对的点？
功能[d1，d2] = pos2dist（point1，point2）％距离：％d1：基于haversine公式的距离为km：距离为Km b ...

8个月前|0.

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如何计算欧几里德距离Beetwen所有纬度经度对的点？
我有一个399个城市阵列，带Lon Lat坐标（第一列为纵向），如下图。我怎么能计算......

9个月前|1答案|0.

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answer

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更好的“中心点”比凹形多边形的质心
I'm using the centroid of polygons to attach a marker in a map application. This works definitely fine for convex polygons and ...

9个月前|2 answers | 0

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Question


如何在Polyshape内找到一个数字的质心？
我有以下问题：我正在策划几个市政当局的界限，我需要列出每一个。因为有......

10个月前|1答案|0.

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How to plot text in mapshow map
我有这个地图我使用MapShow功能：我使用了这个结构中的数据来创建地图：我的功能是（我是...

1年前|0答案|0.

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运作研究问题的数学制定
How can I implement this objective function and its constraints in Matlab (p-median problem)? Thank you very much!

1年前|1答案|0.

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提交


Quantum-Behaved Particle Swarm Optimization
Q-PSO函数+ 11个基准函数。

2年前|15下载|

拇指nail

提交


高斯量子行为粒子群优化
The Gaussian Q-PSO function + 11 benchmark functions + original article.

2年前|16下载|

拇指nail

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CLONALG - Clonal Selection Algorithm for Optimization Problems
最小化问题的克隆选择算法

2年前|7 downloads |

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Question


如何绘制结构的内容而不使用for循环？
I need to plot the content of a *_structure_* fiel: <> Each ...

2年前|1答案|0.

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answer

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Elastic Distortion Transformation on an image
Expanding Data Sets through Elastic Distortions

3 years ago | 4 downloads |

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Question


神经网络 - 如何使用自定义培训函数
是否可以替换标准的MATLAB培训方法（如_ *梯度下降* _，* _levenberg-marquardt_ *等）。

3 years ago | 2 answers | 0

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How can I plot a confusion matrix for a multi-class or non-binary classification problem?
Implementation code: Confusion Matrix function [] = confusion_matrix(T,Y) M = size(unique(T),2); N = size(T,2)...

3 years ago | 1

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How can I vectorize a function?
由于上述问题我正在使用自己的函数* | surfc | *替换* | fsurf | *：function z = plotfcn（fcn，范围...

3 years ago | 0

回答
Difference between fsurf and ezsurf
* Mathworks的金宝app支持响应：*我能够重现您遇到的速度。* | FSURF | *功能......

3 years ago | 0

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Question


Difference between fsurf and ezsurf
我有一个问题* fsurf * |命令：当我使用fsurf时（@（x，y）ackleyfcn（[x，y]），[ - 32 32 -32 32]）我收到了这个警告......

3 years ago | 2 answers | 1

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Question


如何将此功能嵌套循环，如何激活此功能？
The function is: x = -10:10; y = -5:5; for j = 1:21 for i = 1:11 f(i) = - 20 * exp( - 0.2 * sqr...

3 years ago | 2 answers | 0

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