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python 交通流量数据
用于岭回归模型进行交通流量预测的基础数据。根据已有的交通流量数据,对以后时间的车流量的信息进行回归预测。数据来源:某路口的交通流量监测数据,记录全年小时级别的车流量。
- 2020-12-12下载
- 积分:1
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大地电磁一维正反演MATLAB程序
大地电磁正演的程序,matlab编写,看适不适合你们使用
- 2021-05-06下载
- 积分:1
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getdata graph digitizer v2.22
将图中曲线还原为数据点的工具,超好用,免安装,解压即可~
- 2020-12-07下载
- 积分:1
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ADMM优化算法讲解
alternating direction method of multipliers优化算法讲解OutlineDual decompositionMethod of multipliersAlternating direction method of multipliersCommon patternsExamplConsensus and exchangeConclusionsDual decompositionDual problemp convex equality constrained optimization problemminimizesubject to Ax= 6e Lagrangian: L(a, g)=f(a)+y(Ac-bdual function: g(y)=infx L(, g)e dual problem: maximize g(g)recover x*=argminL(, y*)Dual decompositionDual ascentgradient method for dual problem: y+l=yk +aVg(yky ")=A c-b, where a= argmin L(a, y")b dual ascent method isk+1gminz L(a, yk/-minimization(Axk+I-b)// dual updateworks, with lots of strong assumptionsDual decompositionDual decompositione suppose f is separablef(x)=f1(x1)+…+fN(xN),x=(x1Nthen L is separable in x: L(a, y)=L1(a1, 3)+...+Ln(N, 3)-y bLi(ai, y)=fi(ai)+y Aiaie -minimization in dual ascent splits into N separate minimizationsk+1argmin Li(li, y)Which can be carried out in parallelDual decompositionDual decompositiondual decomposition(Everett, Dantzig, Wolfe, Benders 1960-65k+1argLi(ei, y)N A: k+scatterupdate i in parallel, gather Ai k+solve a large problemby iteratively solving subproblems(in parallel)dual variable update provides coordinationworks, with lots of assumptions; often slowDual decompositionOutlineDual decompositionMethod of multipliersAlternating direction method of multipliersCommon patternsExamplConsensus and exchangeConclusionsMethod of multipliersMethod of multipliersa method to robustify dual ascentb use augmented Lagrangian(Hestenes, Powell 1969),p>0(, y)=f(c)+y(Ax-b)+(p/2)Acmethod of multipliers( Hestenes, Powell; analysis in Bertsekas 1982)k+1argmin Lp(a, yD(A.(note specific dual update step length pMethod of multipliersMethod of multipliers dual update stepoptimality conditions( for differentiableAcx-b=0, Vf(a*)+A(primal and dual feasibility)Since ah+1minimizes Lp(a, y)k+1 kf(x4+1)+A7(y+p(AVxf(at)+adual update yti=y+p(k+1k+1dual feasibleprimal feasibility achieved in limit: A k+I-b>0Method of multipliers
- 2021-05-06下载
- 积分:1
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图像融合C++/MFC
图像融合程序源码(含可运行程序),可以实现加权融合(ALPHA)、乘积变换融合、比值融合等常见方法,并能够对融合图像进行各方面的精度评价,如平均梯度、熵与联合熵、偏差指数、相关系数、均值偏差、方差偏差等。适用于数字图像处理、遥感影像处理等。
- 2020-11-27下载
- 积分:1
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HIDKomponente_1.0.34
delphi读写USB HID的控件,非常好用,1.0.34版本。
- 2020-11-30下载
- 积分:1
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基于SURF算法的图像拼接
基于SURF算法的图像拼接处理,运用RANSAC算法,单向性等原理进行图像拼接。
- 2020-06-28下载
- 积分:1
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titanic_dataset.csv(泰坦尼克数据集)
Abstract The titanic dataset gives the values of four categorical attributes for each of the 2201 people on board the Titanic when it struck an iceberg and sank. The attributes are social class (first class, second class, third class, crewmember), age (adult or child), sex, and whether or not the
- 2020-12-05下载
- 积分:1
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光伏太阳能功率预测基于BP神经网络
most of the researches on PV power generation forecasting methods have problems such as long time for model training and propose an optimization. Using the BP(backpropagation) neural network, this learning algorithm is mainly applicable to multi-input, multi-output networks. It can rely on ready-mad
- 2020-12-06下载
- 积分:1
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铁轨裂纹数据集(第二部分)
这个数据集是自己制作的铁轨裂纹数据集,使用LabelImg软件自己标注的,格式为VOC2007。数据集图片共14010张。这是第二部分,第一部分请下载另外一个压缩包,即VOC2007第一部分。
- 2021-05-06下载
- 积分:1