Krish Desai

My most recent research has been with Ben Nachman at LBNL and Jesse Thaler at MIT. It is titled “Symmetry Discovery with Deep Learning” and here is a brief statement about it:

Symmetries are a fundamental property of functions applied to datasets.  A key function for any dataset is the probability density and the corresponding symmetries are often referred to as the symmetries of the dataset itself.  We provide a rigorous statistical notion of symmetry for a dataset, which involves reference datasets that we call inertial in analogy to inertial frames in classical mechanics.  Then, we construct a novel approach to automatically discover symmetries from a dataset using a deep learning method based on an adversarial neural network.  We show how this model performs on simple examples and provide a corresponding analytic description of the loss landscape.  Symmetry discovery may lead to new insights and can reduce the effective dimensionality of a dataset to increase its effective statistics.