A homotopy training algorithm for fully connected neural networks
A homotopy training algorithm for fully connected neural networks
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一种全连接神经网络的同伦训练算法
DOI:
10.1098/rspa.2019.0662
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
Hao, Wenrui
中科院分区:
文献类型:
--
作者:
Chen, Qipin;Hao, Wenrui
In this paper, we present a homotopy training algorithm (HTA) to solve optimization problems arising from fully connected neural networks with complicated structures. The HTA dynamically builds the neural network starting from a simplified version and ending with the fully connected network via adding layers and nodes adaptively. Therefore, the corresponding optimization problem is easy to solve at the beginning and connects to the original model via a continuous path guided by the HTA, which provides a high probability of obtaining a global minimum. By gradually increasing the complexity of the model along the continuous path, the HTA provides a rather good solution to the original loss function. This is confirmed by various numerical results including VGG models on CIFAR-10. For example, on the VGG13 model with batch normalization, HTA reduces the error rate by 11.86% on the test dataset compared with the traditional method. Moreover, the HTA also allows us to find the optimal structure for a fully connected neural network by building the neutral network adaptively.
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DOI:
10.1109/dicta.2014.7008084
发表时间:
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期刊:
2014 International Conference on Digital Image Computing: Techniques and Applications (DICTA)
影响因子:
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2.1
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影响因子:
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影响因子:
3.1
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