Rounding Convex Relaxations of Quadratic Maps
This line of work studies convex relaxations of functions of the form \(f(x^T
A_1 x, \ldots, x^T A_d x)\). For very high degree but structured polynomials we
derive intermediate relaxations interpolating between spectral and
Sum-of-Squares relaxations, as well as randomized rounding schemes (see picture
on the right). We also analyze rounding schemes for different functions \(f\),
making a connection to Max-Cut.
Papers:
Semidefinite Relaxations of Products of Nonnegative Forms on the Sphere
Talks:
Rounding Semidefinite Relaxations of Concave Functions of Quadratic Forms
Semidefinite Relaxations of Products of Nonnegative Forms
Semidefinite Relaxations of Product of PSD Forms