IMO AI means neural net. I get that people use it for other things, but that's what I use it to mean - there is just no other term that's easy to say. And at this point the idea of breaking problems down into "neurons" and activation patterns is inherent to most AI models. Here though the keywords are "ensemble machine learning" and "Bayesian" - they could have used a neural net for the machine learning but most likely it is just XGBoost or similar. https://ia.acs.org.au/article/2021/the-ml-technology-looking... mentions they are also doing full-physics joint inversions and computer vision, perhaps the vision is a neural net.