| 一种快速逃离局部极小点的BP算法 |
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| 引用本文： | 文冬林,刘小军.一种快速逃离局部极小点的BP算法[J].计算机应用,2008,28(Z1). |
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| 作者姓名： | 文冬林 刘小军 |
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| 作者单位： | 贵州大学电子科学与信息技术学院,贵阳,550025 |
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| 基金项目： | 国家自然科学基金资助项目(60573009); 贵州省省长基金资助项目2005(212) |
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| 摘 要： | 针对反向传播(BP)算法容易陷入局部极小点的问题,提出了一种改进价值函数,使其快速收敛到全局最小点的方法。对扩展的异或问题正弦函数模拟进行了仿真实验,结果对比表明,改进的BP算法能快速逃离局部极小点,收敛到全局最小点,达到了期望的效果。
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| 关 键 词： | 逃离局部极小点 价值函数 全局最优 |
Faster escaping from local minima for back-propagation algorithm |
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| WEN Dong-lin,LIU Xiao-jun.Faster escaping from local minima for back-propagation algorithm[J].journal of Computer Applications,2008,28(Z1). |
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| Authors: | WEN Dong-lin LIU Xiao-jun |
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| Affiliation: | WEN Dong-lin,LIU Xiao-jun(College of Electronic Science , Information Technology,Guizhou University,Guiyang Guizhou 550025,China) |
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| Abstract: | With the purpose of solving the local minima of standard Back-Propagation(BP) algorithm,a modified error function was proposed to escape from the local minima and converge to the global minima.A modified XOR was used.The result contrast indicates that the new back-propagation algorithm can fast escape from the local minima and converge to the global minima,which is just within the expectation. |
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| Keywords: | escape from the local minima error function global minima |
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