Evidential distance measure in complex belief function theory
  In this paper, an evidential distance measure is proposed which can measure
the difference or dissimilarity between complex basic belief assignments
(CBBAs), in which the CBBAs are composed of complex numbers. When the CBBAs are
degenerated from complex numbers to real numbers, i.e., BBAs, the proposed
distance will degrade into the Jousselme et al.'s distance. Therefore, the
proposed distance provides a promising way to measure the differences between
evidences in a more general framework of complex plane space.
