Exploring constructive cascade networks
1School of Computer Science and Engineering, University of New South Wales, Sydney, Australia.
IEEE Transactions on Neural Networks
|February 7, 2008
Summary
Regularization and early stopping improve neural network generalization. An adaptive method for regularization magnitude in constructive algorithms led to smaller networks and comparable generalization performance.
Area of Science:
- Machine Learning
- Artificial Intelligence
- Neural Networks
Background:
- Constructive algorithms are effective for training feedforward neural networks.
- Generalization is a critical property for these networks.
Purpose of the Study:
- To examine the effect of regularization on generalization in constructive cascade algorithms.
- To introduce and evaluate an adaptive method for setting regularization magnitude.
Main Methods:
- Empirical studies were conducted to analyze regularization techniques.
- Early stopping, cubic penalty terms, and an adaptive regularization method were investigated.
- The acasper algorithm was developed and compared to cascade correlation.
Main Results:
- Combining early stopping with regularization enhanced generalization compared to early stopping alone.
- A cubic penalty term benefited generalization in cascade networks.
- The adaptive regularization method achieved generalization similar to fixed settings and produced smaller networks for complex problems.
Conclusions:
- Regularization is crucial for improving generalization in constructive neural networks.
- The adaptive regularization method offers an efficient approach to network training.
- The acasper algorithm demonstrates strong generalization and network construction capabilities.
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