Sliced Inverse Regression for the inference of stellar fundamental parameters

Abstract

We aim at finding the value of an explanatory variable, through its expression in a large data-vector, without knowing the link function between the explanatory variable and the data-space. Sliced Inverse Regression (SIR) method allows for the projection of a data-vector onto a subspace consistent with the explanatory variable variation. We suggest a method based on the SIR subspace, that gives the most efficient estimation of an unknown explanatory variable.

in French. to appear in: http://www.gretsi.fr/ XXVI-th colloquium proc. (text in french; maths in maths)