RPROP算法,全称为"Resilient Propagation Algorithm",是一种用于神经网络的优化算法。其基本原理是:首先为各权重变化赋一个初始值,设定权重变化加速因子与减速因子。在网络前馈迭代中,当连续误差梯度符号不变时,采用加速策略,加快训练速度;当连续误差梯度符号变化时,采用减速策略,以期稳定收敛。网络结合当前误差梯度符号与...
Rprop(Resilient 弹性 Backpropagation)算法是由Martin Riedmiller和Hermann Braun在1993年提出的。这一算法在论文《A Direct Adaptive Method for Faster Backpropagation Learning: The RPROP Algorithm》1 中被详细描述,该论文发表在1993年的IEEE国际会议上。Rprop算法通过仅使用梯度的符号来计算更新,而不是梯度的大小,...
Application of RPROP Algorithm to Well Logging Lithologic Identification Z H ANG Zhi-g uo , YANG Yi-heng , XIA Li-xian (Inst it ute o f Miner al Resour ces Pr ed iction o f S ynthet ic I n f ormat ion , J i li n Un iver sit y , Changchun 130026 , China) Abstract :...
algorithm backpropagationneuralnetWork log gingdata lithologicidentification 0 引言 测井在油气勘探中被比喻成人的眼睛 测井资 料所携带的地质信息是确定地层含油储量和制订开 采规划的重要依据 石油测井解释就是利用测井信 息来确定储层岩性 储层流体性质和储层参数孔隙 度 渗透率和饱和度 因此 利用测井资料进行储...
3D FACE RECOGNITION USING 3D RPROP ALGORITHMalgorithm of rprop ppt
net.trainFcn = 'trainbfg'; % Quasi-Newton Algorithms - BFGS Algorithm,计算量和内存需求均比共轭梯度算法大,但收敛比较快 net.trainFcn = 'trainoss'; % One Step Secant Algorithm,计算量和内存需求均比BFGS算法小,比共轭梯度算法略大 (中小型网络的首选算法 - 函数拟合,模式识别)net.trainFcn ...
(TRMS) which resembles the dynamics of a helicopter to a certain extent and presents formidable control challenges.Design/methodology/approach - A Non-linear AutoRegressive process with eXternal input (NARX) approach with a feedforward neural work and a resilient propagation (RPROP) algorithm is used...
The Rprop algorithm proposed by Riedmiller and Braun is one of the best performing first-order learning methods for neural networks. We discuss modifications of this algorithm that improve its learning speed. The new optimization methods are empirically compared to the existing Rprop variants, the co...
PCA-改进RPROP方法的BP算法在音乐信号分类中的应用
The proposed algorithm utilizes the intersections of two circles and two lines, based on the most resilient back-propagation (Rprop) neural network learning technique, to give location estimation of the MS. The traditional Taylor series algorithm (TSA) and the hybrid lines of po...