Speaker: Jingfeng Wu Affiliation: Johns Hopkins University Title: Direction Matters: On the Implicit Regularization Effect of Stochastic Gradient Descent with Moderate Learning Rate Abstract: Understanding the algorithmic regularization effect of stochastic gradient descent (SGD) is[...]

Speaker: Arnold Filtser Affiliation: Columbia University Title: Scattering and Sparse Partitions, and their Applications Abstract: A partition $\mathcal{P}$ of a weighted graph $G$ is $(\sigma,\tau,\Delta)$-sparse if every cluster has diameter at most $\Delta$, and every[...]