2 papers
math.PR2023
Shifted Composition II: Shift Harnack Inequalities and Curvature Upper Bounds
Jason M. Altschuler, Sinho Chewi
We apply the shifted composition rule -- an information-theoretic principle introduced in our earlier work [AC23] -- to establish shift Harnack inequalities for the Langevin diffus…
math.ST2023
Faster high-accuracy log-concave sampling via algorithmic warm starts
Jason M. Altschuler, Sinho Chewi
Understanding the complexity of sampling from a strongly log-concave and log-smooth distribution on to high accuracy is a fundamental problem, both from a practi…