X. Wang, Y. Zhong, L. Zhang, and Y. Xu, “Spatial Group Sparsity Regularized Nonnegative Matrix Factorization for Hyperspectral Unmixing,” IEEE Transactions on Geoscience and Remote Sensing, vol. 55, no. 11, pp.6287-6304, 2017.

Grouped Automatic Relevance Determination

Group sparse NMF, variational Bayesian learning.

HIWT-GSC: Homotopy Iterative Weighted Thresholding algorithm for solving Group Sparsity Constrained optimization problems