30 April 2024 to 3 May 2024
Amsterdam, Hotel CASA
Europe/Amsterdam timezone

Choose Your Diffusion: Efficient and flexible way to accelerate the diffusion model dynamics in fast physics simulation

30 Apr 2024, 15:45
3m
Oxford, Hotel CASA

Oxford, Hotel CASA

Speaker

Cheng Jiang (University of Edinburgh)

Description

The diffusion model has demonstrated promising results in image generation, recently becoming mainstream and representing a notable advancement for many generative modeling tasks. Prior applications of the diffusion model for both fast event and detector simulation in high energy physics have shown exceptional performance, providing a viable solution to generate sufficient statistics within a constrained computational budget in preparation for the High Luminosity LHC. However, many of these applications suffer from slow generation with large sampling steps and face challenges in finding the optimal balance between sample quality and speed. The study focuses on the latest benchmark developments in most efficient ODE/SDE-based samplers, schedulers, and fast convergence training techniques. We test on the public CaloChallenge and JetNet datasets with the designs implemented on the existing architecture, the performance of the generated classes surpass previous models, achieving significant speedup via various evaluation metrics.

Primary authors

Cheng Jiang (University of Edinburgh) Huilin Qu (CERN) Sitian Qian (Peking University)

Presentation materials