A Faster Interior-Point Method for Sum-of-Squares Optimization

نویسندگان

چکیده

We present a faster interior-point method for optimizing sum-of-squares (SOS) polynomials, which are central tool in polynomial optimization and capture convex programming the Lasserre hierarchy. Let $$p = \sum _i q^2_i$$ be an n-variate SOS of degree 2d. Denoting by $$L:= \left( {\begin{array}{c}n+d\\ d\end{array}}\right) $$ $$U:= {\begin{array}{c}n+2d\\ 2d\end{array}}\right) dimensions vector spaces $$q_i$$ ’s p live respectively, our algorithm runs time $${\tilde{O}}(LU^{1.87})$$ . This is polynomially than state-of-art semidefinite solvers, achieve runtime $${\tilde{O}}(L^{0.5}\min \{U^{2.37}, L^{4.24}\})$$ The centerpiece dynamic data structure maintaining inverse Hessian barrier function under interpolant basis, efficiently extends to multivariate optimization, requires spectral approximations low-rank perturbations elementwise (Hadamard) products. main challenge departure from recent IPM breakthroughs using inverse-maintenance, where updates slack matrix readily imply same matrix.

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ژورنال

عنوان ژورنال: Algorithmica

سال: 2023

ISSN: ['1432-0541', '0178-4617']

DOI: https://doi.org/10.1007/s00453-023-01112-4