Machine Learning March 8, 2023 2.2 When Gradient Is Small... 1 Optimization Fails because Critical Point Local minima Saddle Point 2 Warning of Math2.1 Tayler Series Approximation 2.2 Hessian 3 Don’t Afraid of Saddle Point Example: 4 Saddle Point v.s Local Minima # ML Next 4 Optimization With Integer Values and Nonlinear Representation Previous 3 Linear Programming>