Posterior consistency in linear models under shrinkage priors

We investigate the asymptotic behaviour of posterior distributions of regression coefficients in highdimensional linear models as the number of dimensions grows with the number of observations. We show that the posterior distribution concentrates in neighbourhoods of the true parameter under simple...

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Veröffentlicht in:Biometrika 2013-12, Vol.100 (4), p.1011-1018
Hauptverfasser: ARMAGAN, A., DUNSON, D. B., LEE, J., BAJWA, W. U., STRAWN, N.
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Sprache:eng
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Zusammenfassung:We investigate the asymptotic behaviour of posterior distributions of regression coefficients in highdimensional linear models as the number of dimensions grows with the number of observations. We show that the posterior distribution concentrates in neighbourhoods of the true parameter under simple sufficient conditions. These conditions hold under popular shrinkage priors given some sparsity assumptions.
ISSN:0006-3444
1464-3510
DOI:10.1093/biomet/ast028