energy based Ganso it's gonna be interpretation against in the context of energy based models and we talked about the other ones except except those two so this one denoising auto-encoder says I'm not going to train the system to actually compute an energy function it's physically but I'm gonna train a dynamical system to start from a point outside the region of data and then I'm going to train a neural net to map it back to the region of data okay so I take a training sample I corrupt it so now I take a noisy training sample and I