arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2408.00543math.OC
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基于函数信息的非凸多目标优化问题改进BFGS型方法的全局收敛性

Global convergence of a modified BFGS-type method based on function information for nonconvex multiobjective optimization problems

Yingxue Yang

AI总结:

针对非凸多目标优化,提出改进BFGS型方法MFQNMO,用公共矩阵近似所有目标Hessian矩阵以降低计算负担,证明了其不依赖凸性的收敛性与局部超线性收敛速率,并通过实验验证有效性。

摘要:

本文基于函数信息,针对非凸多目标优化问题提出了一种改进的BFGS型方法(MFQNMO)。在多目标拟牛顿法(QNMO)中,每次迭代需分别近似各个分量目标函数的Hessian矩阵,导致存储和计算负担显著。MFQNMO采用一个公共的BFGS型矩阵来近似所有目标函数的Hessian矩阵,该矩阵利用前一步的函数信息进行更新,从而在效能与计算成本之间取得平衡。我们在不依赖凸性假设的条件下证明了该方法的收敛性,并在温和条件下建立了MFQNMO的局部超线性收敛速率。此外,通过在非凸和凸测试问题上的实验验证了其有效性。

英文摘要:

In this paper, based on function information, we propose a modified BFGS-type method for nonconvex multiobjective optimization problems (MFQNMO). In the multiobjective quasi-Newton method (QNMO), each iteration involves separately approximating the Hessian matrix for each component objective function, which results in significant storage and computational burdens. MFQNMO employs a common BFGS-type matrix to approximate the Hessian matrix of all objective functions in each iteration. This matrix is updated using function information from the previous step. This approach strikes a balance between efficacy and computational cost. We confirm the convergence of the method without relying on convexity assumptions, under mild conditions, we establish a local superlinear convergence rate for MFQNMO. Furthermore, we validate its effectiveness through experiments on both nonconvex and convex test problems.

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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