On Exact Distribution for Multivariate Weighted Distributions and Classification

Matieyendou Lamboni ()
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Matieyendou Lamboni: University of Guyane

Methodology and Computing in Applied Probability, 2023, vol. 25, issue 1, 1-26

Abstract: Abstract We are interested in analyzing specific model behaviors such as the model output(s) values within a given cluster using the probability theory. By showing the relevance of the multivariate weighted distribution theory to characterize some behaviors of interest thanks to the weight functions, we derive the distribution function of the model inputs that complies with a specific model behavior (called target inputs distribution). The target inputs lead to the target output(s) using the model, including clustering outcomes of rule-based ensembles, random forest, kernel-based learning and fuzzy clustering. Two expressions of that distribution are provided, including the copula. Conditional moments of the target output(s) and dependency models of the target inputs are also derived for the purpose of uncertainty quantification and sensitivity analysis. For computing such quantities of interest, consistent estimators and detailed illustrations of our approach are provided, including a real case study.

Keywords: Clustering; Copula; Dependency models; Discrete variables; Multivariate weighted distributions; 60E05; 62E10; 65C50; 49Q12 (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (1)

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DOI: 10.1007/s11009-023-09993-2

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