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An ART-based construction of RBF networks
1Dept. of Electr. Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan.
IEEE Transactions on Neural Networks
|February 5, 2008
Summary
This study introduces an improved Radial Basis Function (RBF) network. The novel approach enhances function modeling by automatically determining nodes and using new kernel functions for better performance.
Area of Science:
- Artificial Intelligence
- Machine Learning
- Neural Networks
Background:
- Radial Basis Function (RBF) networks are common for function modeling.
- Traditional RBF networks face challenges with initial configuration and performance on abrupt or constant data.
- These limitations hinder their effectiveness in complex modeling tasks.
Purpose of the Study:
- To propose a novel approach to overcome the limitations of traditional RBF networks.
- To enhance the efficiency and accuracy of RBF network-based function modeling.
- To develop an adaptive method for RBF network construction.
Main Methods:
- Utilized new kernel functions for hidden nodes in RBF networks.
- Implemented an adaptive resonance theory (ART)-like algorithm for automatic node determination.
- Employed gradient-descent optimization for parameter and weight tuning.
Main Results:
- Constructed RBF networks with a reduced number of nodes.
- Achieved faster learning speeds compared to traditional methods.
- Demonstrated smaller approximation errors, indicating improved performance.
Conclusions:
- The proposed method offers a more efficient and accurate approach to RBF network construction.
- Automatic node determination and novel kernel functions address key limitations of TRBFs.
- This advancement is beneficial for function modeling applications requiring high precision and speed.
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