no code implementations • 26 May 2018 • Na Lei, Zhongxuan Luo, Shing-Tung Yau, David Xianfeng Gu
In this work, we give a geometric view to understand deep learning: we show that the fundamental principle attributing to the success is the manifold structure in data, namely natural high dimensional data concentrates close to a low-dimensional manifold, deep learning learns the manifold and the probability distribution on it.
no code implementations • 16 Oct 2017 • Na Lei, Kehua Su, Li Cui, Shing-Tung Yau, David Xianfeng Gu
In this work, we show the intrinsic relations between optimal transportation and convex geometry, especially the variational approach to solve Alexandrov problem: constructing a convex polytope with prescribed face normals and volumes.