Training of an EWNN on a two-spiral task. KhanMaryam Mahsal MendesAlexandre ChalupStephan K. 2018 <p>(a) two-spiral classification task, each spiral consisting of 97 data points in the 2D Cartesian space. (b) Morelet wavelet activation function and (c) Optimal response on the task where a EWNN with Morelet wavelet activation function has separated the two classes successfully.</p>