P N

Class label information is then introduced as follows: If yv belongs to class Ae{1,..., m}, y\ = ¿a(xi)> ; e {1, ...>m}>

holds, i.e. the component y\ of yv is set to 1, whereas all the other components are set to 0. By computing the sum over the activations belonging to all the feature vectors of a specific class X, Eq. (31) transforms into a system of m linear equations for the weights s-kk:

0 0

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