1. A computer-implemented method of determining actions outside of a norm, comprising: transforming, by a processing system, a state vector for an actor into a first sampled wave series representation, wherein the state vector identifies a characteristic for the actor in each of a plurality of categories; defining, by the processing system, a population that includes a plurality of actors; transforming, by the processing system, a state vector for the defined population into a second sampled wave series representation, wherein the defined population state vector identifies the characteristic for the population, wherein the second sampled wave series representation is a single wave series representation for the plurality of actors; comparing, by the processing system, the first sampled wave series representation and the second sampled wave series representation to identify a deviation of the first wave series representation from the second wave series representation in a phase or a magnitude; identifying, by the processing system, an action outside of a norm based on the identified deviation in the phase or in the magnitude; and outputting, by the processing system, information regarding the identified action outside of the norm.