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I ran affinity propagation and I found that the list of exemplar indices contained NaN. What should I do?

April 26, 2017affinity exemplar indices list NaN Propagation ran

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I ran affinity propagation and I found that the list of exemplar indices contained NaN. What should I do?

1 Answer

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This is most likely caused by one or more data points not “finding” exemplars by the time the algorithm is stopped. This may be caused by the algorithm not converging, in which case the maximum number of iterations (maxits) and damping factor (dampfact) can be increased.