Scaled conjugate gradient算法是一种用于求解最小二乘问题的优化算法。它通过迭代寻找最小化目标函数的权重参数,以最小化误差函数和真实值之间的差距。使用scaled conjugate gradient算法的步骤包括定义目标函数和误差函数、初始化权重参数、计算梯度、更新权重参数、检查收敛性和评估模型性能。通过这些步骤,我们可以找到最优...
scaled conjugate gradient算法-回复 什么是scaled conjugate gradient算法? Scaled conjugate gradient(SCG)算法是一种优化算法,用于解决参数优化问题。它的特点是在每一步迭代中都能自动更新学习率,并且在凸优化和非凸优化问题上都能得到良好的结果。SCG算法是一种无记忆的优化方法,它通过近似特征值和分解方法来计算学习...
proposed by Andrei, we hybridize the memoryless BFGS preconditioned conjugate gradient method suggested by Shanno and the spectral conjugate gradient method suggested by Birgin and Mart铆nez based on a modified secant equation suggested by Yuan, and propose two modified scaled conjugate gradient methods....
梯度共轭梯度算法
A Scaled Conjugate Gradient Algorithm for Fast Supervised Learning Martin F. Møller Computer Science Department University of Aarhus, Denmark email: fodslett@daimi.aau.dk Abstract— A supervised learning algorithm (Scaled Conjugate Gradient, SCG) with ...
SCG算法是一种基于共轭梯度(conjugate gradient)算法的改进方法。共轭梯度算法是一种用于解决线性方程组的迭代方法,它能够在有限的迭代次数内找到精确的解。SCG算法则通过在每次迭代中对权重进行自适应的缩放,从而加速梯度下降的过程。 SCG算法的步骤如下: 1.初始化:将初始权重设置为一个合适的值,同时设置学习率、最...
scaled conjugate gradient基本解释 量化共轭梯度法 分词解释 scaled有鳞状斑点的,有鳞的 conjugate使结合 gradient[物]梯度,陡度猜你喜欢 Alveolar arterial oxygen gradient肺泡动脉血氧梯度 complex conjugate复共轭 concentration gradient浓(密)度梯度 conjugate base共轭碱 conjugate gradient共轭梯度法 contrast gradient...
L: Sound (dB) Ldm: Learngdm (transfer function) MAE: Mean absolute error MSE: Mean square error MLP: Multilayer perceptron w: Weight R2: Correlation coefficient Ra: Surface roughness SEM: Scanning electron microscopy SCG: Scaled conjugate gradient ...
neural network neural-network dropout gradient conjugate-gradient backpropagation scaled conjugate scaled-conjugate-gradient Updated Mar 3, 2022 Java vrettasm / MeanFieldVarGP Star 0 Code Issues Pull requests Mean field variational Gaussian process algorithm. This repository contains a python3 ...
4) conjugate gradient algorithm 共轭梯度法 1. Training method of multi-layered neural network based onconjugate gradient algorithm; 基于共轭梯度法的多层神经网络训练方法 2. Blind image restoration based on space domainconjugate gradient algorithm; ...