Stochastic Gradient Descent: Momentum and Nesterov Momentum

http://www.christianherta.de/lehre/dataScience/machineLearning/neuralNetworks/nesterov-momentum.php

https://blogs.princeton.edu/imabandit/2013/02/05/orf523-advanced-optimization-introduction/

https://blogs.princeton.edu/imabandit/2015/06/30/revisiting-nesterovs-acceleration/

https://arxiv.org/pdf/1405.4980v2.pdf

https://en.wikipedia.org/wiki/Convex_hull

http://mathworld.wolfram.com/ConvexHull.html

https://en.wikipedia.org/wiki/Convex_combination

https://en.wikipedia.org/wiki/Tensor