Approximating Optimal Transport with Linear Programs. To appear in SOSA 2019.
On Approximating (Sparse) Covering Integer Programs. With Chandra Chekuri. To appear in SODA 2019.
Approximation Algorithms for Polynomial Expansion and Low-Density Graphs. With Sariel Har-Peled. SIAM J. Comput. (SICOMP), 46(6) 1712-1744, 2017. Preliminary version in ESA 2015. [slides (uiuc)] [notes]