Radial basis function network: Difference between revisions

Revision as of 15:32, 19 May 2018

Revision as of 09:58, 10 September 2018

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It can be shown that the interpolation matrix in the above equation is non-singular, if the points <math>\mathbf x_i</math> are distinct, and thus the weights <math>w</math> can be solved by simple linear algebra:

:<math>\mathbf{w} = \mathbf{G}^{-1} \mathbf{b}</math>{{Specify|reason=What does capital G stand for? A vector of g_ij values?}}

where <math>G = (g_{ij})</math>.

===Function approximation===