Effect of the regularization hyperparameter on deep learning-based segmentation in LGE-MRI

In this work, the author aims at demonstrating the extent to which the arbitrary selection of the L2 regularization hyperparameter can affect the outcome of deep learning-based segmentation in LGE-MRI. Here, arbitrary L2 regularization values are used to create different deep learning-based segmentation networks. Also, the author adopts the manual adjustment or tunning, of other deep learning hyperparameters, to be done only when 10% of all epochs are reached before achieving the 90% validation accuracy. The experimental comparisons demonstrate that small L2 regularization values can lead to better segmentation of the myocardial boundaries.