The Ray Tracing Sampler: Bayesian Sampling of Neural Networks for Everyone

The recent development of a new Markov Chain Monte Carlo sampler, known as the Ray Tracing Sampler, is making waves in the field of neural networks. This innovative method allows for more efficient sampling by following ray paths in a medium where the refractive index varies according to the desired likelihood. It significantly enhances resilience to heating in stochastic gradients compared to traditional Hamiltonian Monte Carlo methods. This advancement is crucial as it enables researchers to overcome likelihood barriers, paving the way for more robust and effective neural network training.