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arXiv 2210.08387math.OCcs.NAmath.NA
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时变半定规划:沿Burer-Monteiro分解的路径跟踪

Time-Varying Semidefinite Programming: Path Following a Burer-Monteiro Factorization

Antonio Bellon, Mareike Dressler, Vyacheslav Kungurtsev, Jakub Marecek, André Uschmajew

AI总结:

本文针对时变半定规划提出一种基于Burer-Monteiro低秩分解路径跟踪的在线预测-校正算法,并通过水平空间约束保证局部单射性,实验表明其在运行时上优于传统内点法。

摘要:

我们提出了一种用于时变半定规划(TV-SDPs)的在线算法,该算法基于在路径跟踪过程中对低秩矩阵分解(也称为Burer-Monteiro分解)的解轨迹进行跟踪。其中,一个预测-校正算法求解一系列线性化系统。这需要引入一个水平空间约束,以确保低秩分解的局部单射性。该方法为原始TV-SDP问题生成一系列近似解,我们证明如果初始化得当,这些近似解会保持在最优解路径附近。针对时变最大割SDP松弛的数值实验表明,与现成的内点法相比,所提出的方法在跟踪TV-SDPs的运行时方面具有计算优势。

英文摘要:

We present an online algorithm for time-varying semidefinite programs (TV-SDPs), based on the tracking of the solution trajectory of a low-rank matrix factorization, also known as the Burer-Monteiro factorization, in a path-following procedure. There, a predictor-corrector algorithm solves a sequence of linearized systems. This requires the introduction of a horizontal space constraint to ensure the local injectivity of the low-rank factorization. The method produces a sequence of approximate solutions for the original TV-SDP problem, for which we show that they stay close to the optimal solution path if properly initialized. Numerical experiments for a time-varying max-cut SDP relaxation demonstrate the computational advantages of the proposed method for tracking TV-SDPs in terms of runtime compared to off-the-shelf interior point methods.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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