Plans for the week of February 19-23_亚博娱乐官网_亚博pt手机客户端登录

mhjensen
2024-02-22T10:30:17.890Z
type:structured-message
www.uio.no

Dear all, the topic this week is a discussion of various gradient methods in order to find the optimal parameters for the large VMC runs.

We will discuss various methods and discuss the pros and cons and outline computational strategies. The topics this week deal thus with various gradient optimization methods and we will cover

a. Semi-Newton methods (Broyden's algorithm, most used for our type of problems) and plain gradient descent

b. Steepest descent and conjugate gradient descent

c. Stochastic gradient descent

d. We will wrap up (see end of the slides for this week and link below) with how we can implement the plain gradient descent approach and quasi-newton methods.

Recommended background literature if you wish to dig deeper, Convex Optimization by Boyd and Vandenberghe. Their lecture slides at https://web.stanford.edu/~boyd/cvxbook/bv_cvxslides.pdf are very...