3:00-4:00pm Stefanie Jegelka (UC Berkeley), "What does submodularity have to do with machine learning?" 4:00-5:00pm Elina Robeva (UC Berkeley), "Fixed points of the EM algorithm and nonnegative rank boundaries". 5:00-6:00pm Jésus de Loera (UC Davis), "Affine Semigroups, Polyhedra with Prescribed Number of Lattice Points, and Applications".