As a generalization of Dempster-Shaffer Theory (DST) of evidence, the Dezert-Smarandache Theory (DSmT) of plausible and paradoxical reasoning allows to formally combine any kind of information (certain, uncertain, paradoxical). It was developed by Jean Dezert and Florentin Smarandache.
The DSmT is able to fusion complex data/information fusion problems where the DST usually fails, especially when conflicts (paradoxes) between sources become large and when the refinement of the frame of discernment is inaccessible because of the vague, relative, and imprecise nature of elements of the frame of discernment.
