The speaker describes a progression from expensive sampling and limited variational models, through energy-based models, toward flow models intended to reduce rejection sampling.

“Oh, now you phrase the problem as I do optimization in infinite dimensional space. So you you pay for infinite dimensions, but you get the the lack of sampling. So the the effectively the entire trajectory was you start off with like the deep very expensive sampling and like the variational models which were very limited. Then you said well let's do kind of both in the middle which were these energy based models. And then you said”

“Well, can we make the energy based models less like like rejection sample-y, and that then gives you the fusion models. And now you say well, when we actually do that,”