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There're three parameters in the Radial Basis Function Networks (RBFN).

  1. Centers of RBFs
  2. Width of RBFs
  3. Weights of RBFs

It's a fact that Weights can be easily updated using a simple Gradient Descent. My question is: Can we optimize Centers and Widths of RBFs using Gradient Descent such that approximation will tend to be better.

Any suggestion is welcome.

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  • $\begingroup$ Cannot say for sure but I believe this might lead to rapid overfit since setting widhts and centers of gaussians is usually seen as constraining your model to fully capture variance of your data. $\endgroup$
    – Adam Oudad
    Feb 5, 2020 at 16:50

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Yes - Radial Basis Function's (RBF) centers and widths can be optimized with gradient descent.

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