28 July 2024 to 3 August 2024
Europe/London timezone

Control variates with neural networks

30 Jul 2024, 14:05
20m
Talk Algorithms and Artificial Intelligence Algorithms and artificial intelligence

Speaker

Hyunwoo Oh

Description

In lattice QCD, the precision of results is often hampered by the inherent uncertainty of stochastic methods. Recently, control variates methods have emerged as a promising solution for such noise. Traditional control variates have been used to mitigate this issue, but they rely on educated guesses, which can be limiting. In this talk, I will introduce a neural network approach to parametrize control variates, eliminating the need for guesswork. Using 1+1 dimensional scalar field theory as a testbed, I will demonstrate significant variance reduction, particularly in the strong coupling regime. Also, I will discuss applications of neural control variates on gauge theories.

Primary author

Hyunwoo Oh

Presentation materials