Model and Theoretical Fundament

Classifier Design

The main advantage of GRNN.

  1. The GRNN needs only a single learning pass to achieve optimal performance in classification.

The estimator

  1. Use a reduced gaussian kernel

The GRNN operation

  1. The input layer simply passes the patterns x to all units in the hidden layers composed by kernels functions  exp(-(Di2/2 ρ 2)) and computes the squared distances among the new pattern x and xi training samples
  2. The hidden-to-output weights are just the targets yi, thus the output y(x), is simply a weighted average of the target values yi of the training cases xi close to the given input case x.

 


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