As a best practice, try to order your Interaction sets such that simple filters that may not trigger are placed higher up in the order, to avoid the execution of more complex filters.

The present paper applies fast multipole method (FMM) and multilevel fast multipole algorithm (MLFMA) based on the higher order moment of method (mom) to solve scattering from complex target.

This paper introduces the higher order cumulant (HOC) and analyzes the theoretical basis on which the cumulant extracts the features of complex coupling signals and non-linearity.