The Munich School for Data Science's Y model pairs methods and domain supervision, and sometimes places two students in the arrangement, forming what Fabian Theis describes as “Y plus Y equals H.”

“So there's like a method-y, more domain one, right? And then a supervisor student. And sometimes we had two students under the Y model, so Y plus Y equals H. You get it? But, but I, I think this idea is, it's somewhat even nowadays a bit trivial, right?”