Comparison of Lasserre's measure--based bounds for polynomial optimization to bounds obtained by simulated annealing

Comparison of Lasserre's measure--based bounds for polynomial optimization to bounds obtained by simulated annealing. We consider the problem of minimizing a continuous function $f$ over a compact set $\mathbf{K}$. We compare the hierarchy of upper bounds proposed by Lasserre in [{\em SIAM J. Optim.} $21(3)$ $(2011)$, pp. $864-885$] to bounds that may be obtained from simulated annealing. We show that, when $f$ is a polynomial and $\mathbf{K}$ a convex body, this comparison yields a faster rate of convergence of the Lasserre hierarchy than what was previously known in the literature.