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- Université Toulouse III - Paul SabatierFR936 papers
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12 papers · 2 filters
Spatial Blind Source Separation
François Bachoc, Marc G. Genton, Klaus Nordhausen +2
Recently a blind source separation model was suggested for spatial data together with an estimator based on the simultaneous diagonalisation of two scatter matrices. The asymptotic…
Variance reduction for estimation of Shapley effects and adaptation to unknown input distribution
Baptiste Broto, François Bachoc, Marine Depecker
The Shapley effects are global sensitivity indices: they quantify the impact of each input variable on the output variable in a model. In this work, we suggest new estimators of th…
Sensitivity indices for output on a Riemannian manifold
R. Fraiman, F. Gamboa, L. Moreno
In the context of computer code experiments, sensitivity analysis of a complicated input-output system is often performed by ranking the so-called Sobol indices. One reason of the…
Obtaining fairness using optimal transport theory
Eustasio del Barrio, Fabrice Gamboa, Paula Gordaliza +1
Statistical algorithms are usually helping in making decisions in many aspects of our lives. But, how do we know if these algorithms are biased and commit unfair discrimination of…
Composite likelihood estimation for a gaussian process under fixed domain asymptotics
François Bachoc, Moreno Bevilacqua, Daira Velandia
We study the problem of estimating the covariance parameters of a one-dimensional Gaussian process with exponential covariance function under fixed-domain asymptotics. We show that…
Post hoc false positive control for spatially structured hypotheses
Guillermo Durand, Gilles Blanchard, Pierre Neuvial +1
In a high dimensional multiple testing framework, we present new confidence bounds on the false positives contained in subsets S of selected null hypotheses. The coverage probabili…