Lookahead
Last blog about Medusa was going longer than I expected. So I will write separete blogs about lookahead and EAGLE1/2
Lookahead is from LMSYS, and I mainly read from this blog and this post
1 Jacob Iteration Algorithm
This is an algorithm to solve nonlinear equations iteratively. Details here. It breaks down the matrix to a diagonal one (easy to revert it by taking reciprocal of all diagonal elements) and L/U.
The idea is to change auto-regression decoding into a nonliear equations system and solve all the tokens by iteration