2016
DOI: 10.1214/16-ejs1218
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Improved Laplace approximation for marginal likelihoods

Abstract: Statistical applications often involve the calculation of intractable multidimensional integrals. The Laplace formula is widely used to approximate such integrals. However, in high-dimensional or small sample size problems, the shape of the integrand function may be far from that of the Gaussian density, and thus the standard Laplace approximation can be inaccurate. We propose an improved Laplace approximation that reduces the asymptotic error of the standard Laplace formula by one order of magnitude, thus lea… Show more

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Cited by 17 publications
(15 citation statements)
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“…It requires computing the marginal likelihood or the normalizing constant. Numerous methods have been proposed to compute this integral, for example Laplace's approximation (Ruli, Sartori, & Ventrua, 2016), bridge sampling (Gronau et al, 2017), and Chib's MCMC approximation (Siddhartha, 1995). Further, it is common to use conjugate prior distributions that provide an analytic expression for (7).…”
Section: Bayesian Hypothesis Testingmentioning
confidence: 99%
“…It requires computing the marginal likelihood or the normalizing constant. Numerous methods have been proposed to compute this integral, for example Laplace's approximation (Ruli, Sartori, & Ventrua, 2016), bridge sampling (Gronau et al, 2017), and Chib's MCMC approximation (Siddhartha, 1995). Further, it is common to use conjugate prior distributions that provide an analytic expression for (7).…”
Section: Bayesian Hypothesis Testingmentioning
confidence: 99%
“…It requires computing the marginal likelihood, for which numerous approaches have been proposed, including, for example, Laplace's approximation (Ruli, Sartori, & Ventrua, 2016), bridge sampling (Gronau, Sarafoglou, et al, 2017), and various MCMC approximations (e.g., Siddhartha, 1995). Alternative strategies aim to side-step computing the marginal likelihood altogether.…”
Section: Bayesian Hypothesis Testingmentioning
confidence: 99%
“…The Laplace approximation is accurate to O(n1) since it takes into account only the first‐order terms of the Taylor series expansion (Ruli, Sartori, & Ventura, 2016). The application of this method in the univariate case is less cumbersome as it only requires the evaluation of a unidimensional minimization problem.…”
Section: Approximate Bayesian Inference and Predictionmentioning
confidence: 99%