I am implementing the code for the following paper:
Jas, M., La Tour, T. D., Şimşekli, U., & Gramfort, A. (2017). Learning the morphology of brain signals using alpha-stable convolutional sparse coding. arXiv preprint arXiv:1705.08006.
Unfortunately, I am currently stuck in the optimization step for the activations.
Here is the Github link to the codes I have developed so far:
The problem is that for optimization I am getting ABNORMAL_TERMINATION_IN_LNSRCH.
I would appreciate it if someone could help me in finding the potential errors and get the optimization done.