Proposed Overlapping Clustering Model
The overlapping clustering model that we present here is a generalization
of the SBK model described in Section 2. The SBK model
minimizes the squared loss between X and MA, and their proposed
algorithms is not applicable for estimating the optimal M and A
corresponding to other loss functions. In MOC, we generalize the
SBK model to work with a broad class of probability distributions,
instead of just Gaussians, and propose an alternate minimization
algorithm for the general model.