Events

Thursday, April 18, 2019 — 4:00 PM EDT

Title: Graph Sparsification by Effective Resistances

Speaker: Akshay Ramachandran
Affiliation: University of Waterloo
Room: MC 5417

Abstract:

We will discuss an application of the matrix concentration inequalities of Tropp to spectral sparsification of graphs.

Thursday, April 25, 2019 — 4:00 PM EDT

Title: Recovery of a mixture of Gaussians by sum-of-norms clustering

Speaker: Tao Jiang
Affiliation: University of Waterloo
Room: MC 5417

Abstract:

Sum-of-norms clustering is a method for assigning n points in Rd to K clusters, 1 ≤ K ≤ n, using convex optimization.

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