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A Large Deviation Approximation for Multivariate Density Functions

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Abstract

We establish a large deviation approximation for the density of an arbitrary sequence of random vectors, by assuming several assumptions on the normalized cumulant generating function and its derivatives. We give two statistical applications to illustrate the result, the first one dealing with a vector of independent sample variances and the second one with a Gaussian multiple linear regression model. Numerical comparisons are eventually provided for these two examples.

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Authors and Affiliations

  1. Univ. Paul-Valéry Montpellier 3 and IMAG, Univ. Montpellier, CNRS, Montpellier, France

    C. Joutard

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  1. C. Joutard
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Joutard, C. A Large Deviation Approximation for Multivariate Density Functions. Math. Meth. Stat. 28, 66–73 (2019). https://doi.org/10.3103/S1066530719010058

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  • DOI: https://doi.org/10.3103/S1066530719010058

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