Chieh Wu

18. The mathematic of Modeling (Regression)

Chieh Wu

Example problem of solving Gaussian Elimination, finding rank and the null space.

Chieh Wu

Confirm that C = V Λ Vˉᣳ

Chieh Wu

Question on Finding the orthonormal basis of matrix C

Chieh Wu

Example question on linear dependence

Chieh Wu

Practice Question on the Multiplication Property of Matrix Inverse

Chieh Wu

16. Matrix Calculus

Chieh Wu

Question on Properties of Inverse

Chieh Wu

Solving Dx = γ with Gaussian Elimination

Chieh Wu

Finding the Inverse of matrix D

Chieh Wu

Question on finding the Determinant

Chieh Wu

Finding unit vectors and norms

Chieh Wu

How to find the dominant eigenvector of C

Chieh Wu

Approximate the missing value of J

Chieh Wu

Finding the derivative of e ln(βᵀ z) + 3 zᵀz e^{zᵀ A z} + y.

Chieh Wu

How to find the derivative of f(x) = xᵀA x - yᵀ x

Chieh Wu

How to find the L1 norm of Az

Chieh Wu

Example of finding the exact derivative of a regression objective at a point

Chieh Wu

Proof for diagonalization of matrices.

Chieh Wu

Example of finding the derivative of regression objective

Chieh Wu

Example of finding the derivative of sigmoid function

Chieh Wu

Example of finding derivative of L1 norm function

Chieh Wu

How do you find the derivative of ReLU function

Chieh Wu

Finding the Derivative of PCA objective

Chieh Wu

Finding the derivative of L2 norm squared

Chieh Wu

Error of projecting γ onto columns of C

Chieh Wu

Finding the coordinate of γ projected onto V

Chieh Wu

17 The mathematics of Optimization Notations, Closed form, GD

Chieh Wu

15. The Mathematics of Decision Making Derivative of multivariate functions

Chieh Wu

19 Mathematics of Uncertainty Probability & Integration

Chieh Wu