https://github.com/rasbt/python-machine-learning-book-2nd-edition S. Raschka and V. Mirjalili, Python Machine Learning (2nd Ed.)
activated-tcell-*.png
and quiescent-tcell-*.png
come from Wang et al. 2019 with data originally from Walsh et al. 2019.
Intro to optimization in deep learning: Gradient Descent A. Kathuria