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copula theory 1discrepancy measures 1global sensitivity analysis 1polynomial chaos expansion 1sobol indices 1

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stat.ME2026

Improving Discrepancy Measures for Global Sensitivity Analysis

Samuele Lo Piano, Alessio Lachi, Razi Sheikholeslami +3

The paper proposes an adjusted ersatz discrepancy measure that improves agreement with Sobol' total-order indices for global sensitivity analysis, and benchmarks it against polynom…