Researchers have developed MM-GSA, a novel metamodel-based approach for Global Sensitivity Analysis (GSA) using observational data. This method approximates the input-output relationship through supervised learning, addressing limitations where repeated evaluations are not feasible. MM-GSA incorporates two key indices: a model-agnostic estimator for the first-order Sobol' index, which measures an input's contribution to response variability, and a new trigger-based structural index that assesses predictive performance based on predictor availability. Both estimators have demonstrated consistency, with the structural index showing a variable-selection property under input independence. Applications in Monte Carlo experiments and the NHANES dataset illustrate their complementary nature in understanding input relevance. AI
RANK_REASON Academic paper detailing a new statistical methodology. [lever_c_demoted from research: ic=1 ai=0.7]
- alphaXiv
- arXiv
- CatalyzeX
- DagsHub
- Gotit.pub
- Hugging Face
- Influence Flower
- MM-GSA
- ScienceCast
- US National Health and Nutrition Examination Survey
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