Yang, J., Ouyang, C., Pan, M., Yu, Y., & ter Hofstede, A. H. (2018, September). Finding the “Liberos”: discover organizational models with overlaps. In International Conference on Business Process Management (pp. 339-355). Springer, Cham.
This is a standalone demo mentioned in Sect. 5.1 of the conference paper. Both solutions (applying GMM and MOC) are implemented.
See here for an instruction on how to use it.