1. A method of evaluating an electrophysiological signal, comprising: receiving an electrophysiological signal; applying, using a processor of a computing device, a model-derived reconstruction using a summation series of complex exponentials over at least one cycle of the electrophysiological signal to identify a pathological substrate; and displaying, on a user interface, one or more indicators of the electrophysiological signal to represent at least a portion of the electrophysiological signal and the pathological condition of the substrate and predict the risk for adverse clinical outcomes