Optimizer, Gradient Descent, Machine Learning, Adam, Sgd.
(x1,y1) may get stuck at the local minimum following it, but (x2,y2) will reach the global easily. So, here the position of the point matters. Non-convex feature. A non-convex curve has three points, which will be of interest. Saddle points, which are the plateau-like region, the local, and the