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backward propagation
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  反向传播
     Thirdly, Multi-layer Feed-forward ANN and Error Backward Propagation(BP) algorithm are studied and are utilized as control surfaces' failure detection and sortation.
     第三,研究多层前馈神经网络及相应的BP(Error Backward Propagation误差反向传播)算法,设计基于模型残差的故障分类器,并通过其来完成全局舵面的故障检测与分类。
短句来源
     A mixed genetic algoritbm with simulated annealing is designed for replacing the backward propagation process algorithm of BP network to solve the problem that BP algorithm is prone to get the local minimum in the failure diagnosis system.
     设计了用模拟退火的混合遗传算法代替BP网络的反向传播过程的改进算法 ,解决了在故障诊断系统中BP算法容易陷入局部极小值的问题 .
短句来源
     The results of simulation show this method has much faster training speed than standard backward propagation(BP) network,and the maximal error of quantification is only 0.26%.
     仿真结果表明:该方法不仅训练速度明显快于普通反向传播(BP)网络,而且最大量化误差仅为0.26%。
短句来源
     An acoustical image can be numerically reconstructed by several methods, one of which is the Backward Propagation method (B-P method).
     在声像的数字重建方法中,反向传播法(B-P法)具有一系列优点。
短句来源
     The principle of BP arithmetic: It has two processes that forward computing (forward propagation) of data stream and backward propagation of error signals.
     其中的BP算法原理:由数据流的前向计算(正向传播)和误差信号的反向传播两个过程构成。 正向传播时,传播方向为输入层→隐层→输出层,每层神经元的状态只影响下一层神经元。
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  “backward propagation”译为未确定词的双语例句
     Hardware Realization of Backward Propagation (BP) Neural Network
     BP神经网络的硬件实现
短句来源
     A Fault-Dictionary Diagnostic Method in Frequency Domain for Nonlinear Networks Based on Volterra Series and Backward Propagation Neural Networks (BPNN)
     基于Volterra级数与神经网络的非线性网络的频域故障字典诊断法
短句来源
     Backward propagation is adopted in artificial neural network model.
     人工神经网络模型采用BP算法建立预报模型。
短句来源
     In the experiment,the laser beam distortion introduced by laser amplifier has been caompensated well by backward propagation of its conjugate wave.
     在实验中激光器的放大级产生的光束畸变由共轭波反向再次通过该放大棒,得到了较好的补偿。
短句来源
     This paper presents a hardware implementation approach for realizing simple BP (Backward Propagation) neural network.
     本文采用一种简化的BP(Back Propagation)神经网络硬件模块实现方法。
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  相似匹配句对
     Hardware Realization of Backward Propagation (BP) Neural Network
     BP神经网络的硬件实现
短句来源
     Backward propagation is adopted in artificial neural network model.
     人工神经网络模型采用BP算法建立预报模型。
短句来源
     Wave propagation
     波的传播
短句来源
     ORGANOGENESIS AND PROPAGATION ON REDWOOD
     北美红杉的器官发生与繁殖
短句来源
     2. Backward ideas.
     ②观念落后 ;
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  backward propagation
Using the tsunami waveforms, we estimated the source area of the 1957 tsunami by backward propagation.
      
The geometrical dimensions of the multimode waveguide can be adjusted such that the guided modes interfere constructively in forward direction and destructively for backward propagation.
      
We numerically simulate the effects of stochastic ion channels on the forward and backward propagation of dendritic spikes in Monte-Carlo simulations on a reconstructed layer 5 pyramidal neuron.
      
There is indeed no scale to stop the blueshift effect encountered in the backward propagation toward the event horizon.
      
In this study, 15 inputs were considered to observe eight probable causes with the help of the forward and backward propagation algorithms.
      
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An acoustical image can be numerically reconstructed by several methods, one of which is the Backward Propagation method (B-P method). When the imaging distance is very small, the lateral resolution will be constrained by the spatial procedure sampling spacing if the traditional procedure of B-P method is used. This problem is discussed and a solution, called the method of increasing value in the spatial frequency region, worked out. Some discussion about high-order images is also given.

在声像的数字重建方法中,反向传播法(B-P法)具有一系列优点。但是,当成像距离相当近时,用惯常的B-P法,声像的横向分辨率将被空间取样间隔所限制,达不到成像系统应有的瑞利分辨率。本文对产生这一问题的原因进行了理论分析,提出了一种解决方法-空间频率域增值法,并对B-P法中的高阶像问题进行分析讨论。文中给出了有关计算机模拟结果。

The phase conjugate property of backward inelastic Scattering of laser beam in a waveguide and the possibility of its application in holographic ruby lasers have been investigated.In the experiment,the laser beam distortion introduced by laser amplifier has been caompensated well by backward propagation of its conjugate wave.

本文研究了在装有CS_2的波导管中后向非弹性散射的相位共轭特性和在全息红宝石激光器中应用的可能性。在实验中激光器的放大级产生的光束畸变由共轭波反向再次通过该放大棒,得到了较好的补偿。

The extraordinary waves of the ferrite medium are decomposed into TE and TM modes, through the Fourier transformation and a coordinate rotaion of Maxwell's equations. The wave admittances of TE and TM modes is neglected, the finline with magnetized fer-used and the coupling between TE and TM modes is neglected, the finline with magnetized fexrite substrate can equally he represented by a network. Comparing this approach with T. Itch's spectral domain immittance approach, the ideal transformers are used in the...

The extraordinary waves of the ferrite medium are decomposed into TE and TM modes, through the Fourier transformation and a coordinate rotaion of Maxwell's equations. The wave admittances of TE and TM modes is neglected, the finline with magnetized fer-used and the coupling between TE and TM modes is neglected, the finline with magnetized fexrite substrate can equally he represented by a network. Comparing this approach with T. Itch's spectral domain immittance approach, the ideal transformers are used in the network. Finally, the forward and backward propagation constants for the unilateral finline loaded with magnetized ferrite have been calculated numerically. Numerical results agree weit with that given by Ge-shiro and Itoh (1987).

本文从Maxwell方程出发,经过Fourier变换和坐标旋转,将铁氧体中的非寻常波分解成TE和TM波,并给出它们的波导纳。利用边界条件,忽略TE和TM波间耦合的影响后,将鳍线用一等效网络表示。本文方法与T.Itoh提出的谱域导抗法比较,在等效网络中引入了理想变压器元件。最后对铁氧体加载单侧鳍线的正反向传播常数进行了数值计算,其结果与有关文献中数据吻合得很好。

 
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