01084nas a2200145 4500000000100000008004100001100002100042700001700063700001900080245005900099856005400158300001000212490000700222520070900229 2018 d1 aKrzysztof Domino1 aPiotr Gawron1 aĆukasz Pawela00aEfficient computation of higher order cumulant tensors uhttps://epubs.siam.org/doi/abs/10.1137/17M1149365 aA16100 v403 a
In this paper, we introduce a novel algorithm for calculating arbitrary order
cumulants of multidimensional data. Since the d'th order
cumulant can be presented in the form of an d-dimensional tensor, the
algorithm is presented using tensor operations. The algorithm provided in the
paper takes advantage of super-symmetry of cumulant and moment tensors.
We show that the proposed algorithm considerably reduces the computational
complexity and the computational memory requirement of cumulant calculation as
compared with existing algorithms. For the sizes of interest, the
reduction is of the order of d! compared to the naive algorithm.