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arXiv 2207.04897math.OC
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水网络双目标最优试验设计的上界和凸规划

Bounds and convex heuristics for bi-objective optimal experiment design in water networks

Filippo Pecci, Ivan Stoianov

摘要:

传统上,给水管网参数估计的最优试验设计是为了最大化水力模型精度或空间覆盖率。因为优化两个目标的唯一传感器配置可能不存在,所以这些方法不可避免地导致关于目标之一的次优配置。本文提出了一个新的双目标最优化问题制定这些冲突的目标之间的权衡。我们开发了一个凸启发式近似的帕累托前沿,并计算保证边界丢弃部分的标准空间不包含非支配的解决方案。我们的方法依赖于切比雪夫标量化方案和凸优化。我们实施所提出的方法,在英国的一个业务水网络的最优实验设计。对于这种情况下的研究,凸启发式计算接近最优解方案的个别目标最小化问题,和严格的边界上的真正的帕累托前沿的考虑双目标最优化问题。

英文摘要:

Optimal Experiment Design for parameter estimation in water networks has been traditionally formulated to maximize either hydraulic model accuracy or spatial coverage. Because a unique sensor configuration that optimizes both objectives may not exist, these approaches inevitably result in sub-optimal configurations with respect to one of the objectives. This paper presents a new bi-objective optimization problem formulation to investigate the trade-offs between these conflicting objectives. We develop a convex heuristic to approximate the Pareto front, and compute guaranteed bounds to discard portions of the criterion space that do not contain non-dominated solutions. Our method relies on a Chebyshev scalarization scheme and convex optimization. We implement the proposed methods for optimal experiment design in an operational water network from the UK. For this case study, the convex heuristic computes near-optimal solutions for the individual objective minimization problems, and tight bounds on the true Pareto front of the considered bi-objective optimization problem.

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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