| 一种改进的反向传播神经网络算法 |
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| 引用本文： | 邱浩,王道波,张焕春.一种改进的反向传播神经网络算法[J].应用科学学报,2004,22(3):384-387. |
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| 作者姓名： | 邱浩 王道波 张焕春 |
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| 作者单位： | 1.南京航空航天大学自动化学院测试工程系 江苏南京 210016;2.南京航空航天大学仿真与控制实验室 江苏南京 210016 |
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| 摘 要： | 在标准反向传播神经网络算法的基础上,提出了一种改进的反向传播神经网络算法.通过对每个处理单元增加3个参数来增强作用函数,且3个参数与连接权一样,在学习过程中进行实时更新.此算法提高了学习速度,且减少了进入局部最小点的可能性.通过XOR问题的仿真证明了改进算法的有效性.
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| 关 键 词： | 神经网络 算法 仿真 反向传播 |
| 文章编号： | 0255-8297(2004)03-0384-04 |
| 收稿时间： | 2003-04-21 |
| 修稿时间： | 2003-06-10 |
An Improved Back-Propagation Neural Network Algorithm |
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| QIU Hao,WANG Dao-bo,ZHANG Huan-chun.An Improved Back-Propagation Neural Network Algorithm[J].Journal of Applied Sciences,2004,22(3):384-387. |
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| Authors: | QIU Hao WANG Dao-bo ZHANG Huan-chun |
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| Institution: | 1. Department of Testing and Measurement Engineering, College of Automation, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;2. Aeronautic Simulation and Control Lab, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China |
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| Abstract: | Based on the idea of standard back-propagation(BP) learning algorithm, an improved BP learning algorithm is presented. Three parameters are incorporated into each processing unit(PU) to enhance the output function. The improved BP learning algorithm is developed for updating the three parameters as well as the connection weights. It not only improves the learning speed, but also reduces the occurrence of local minima. Finally, the algorithm is tested on the XOR problem to verify the validity of the improved BP. |
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| Keywords: | back-propagation neural networks algorithm simulation |
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