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Apr 7, 2018 at 6:16 history edited Fabrice Pautot CC BY-SA 3.0
Private solution added
Mar 4, 2018 at 21:54 history edited Fabrice Pautot CC BY-SA 3.0
added 27 characters in body
Feb 6, 2018 at 12:12 history edited Fabrice Pautot CC BY-SA 3.0
added 56 characters in body
Feb 3, 2018 at 21:43 history edited Fabrice Pautot CC BY-SA 3.0
typo
Feb 3, 2018 at 21:35 history edited Fabrice Pautot CC BY-SA 3.0
typo
Feb 2, 2018 at 23:17 history edited Fabrice Pautot CC BY-SA 3.0
maximum corrected
Feb 2, 2018 at 23:00 history edited Fabrice Pautot CC BY-SA 3.0
bound on k corrected
Feb 2, 2018 at 22:46 history edited Fabrice Pautot CC BY-SA 3.0
Improved, Laplace approximation and ratios added
Jan 12, 2018 at 16:04 comment added Fabrice Pautot @Watson Ladd Monte Carlo is another option but fast and deterministic algorithms such as Laplace's approximation would be much better. I'm surprised not to find decicated, sophisticated algos for this purpose.
Jan 11, 2018 at 23:30 history edited Fabrice Pautot CC BY-SA 3.0
added 6 characters in body
Jan 11, 2018 at 22:10 comment added Watson Ladd What about Monte Carlo?
Jan 11, 2018 at 17:44 answer added Abdelmalek Abdesselam timeline score: 3
Jan 11, 2018 at 17:29 history edited Nawaf Bou-Rabee CC BY-SA 3.0
adding a link to wiki entry on Isserlis' Theorem
Jan 11, 2018 at 16:03 comment added Fabrice Pautot @NawafBou-Rabee Another one thphys.uni-heidelberg.de/~amendola/teaching/compstat-hd.pdf, page 28, but you can find plenty of them by yourself. Unfortunately, the Wick-Isserlis formula for moments of order $k$ involve $k!!$ terms. Hence, with $k>>1000$, a different method is required for evaluating my moments. Astonishingly, for the time being, I'm unable to find numerical methods and algorithms for high-order moments of Gaussian r.v..
Jan 11, 2018 at 14:49 comment added Fabrice Pautot @NawafBou-Rabee Isserlis on page 11, section 6.1
Jan 11, 2018 at 14:27 comment added Nawaf Bou-Rabee Thanks, but where in that reference do they state or give the Wick-Isserlis theorem or formula?
Jan 11, 2018 at 14:20 comment added Fabrice Pautot @NawafBou-Rabee One nice reference is arxiv.org/pdf/1310.2559.pdf
Jan 11, 2018 at 13:58 comment added lcv @NawafBou-Rabee The moment generating function of a Gaussian is a Gaussian. Which leads to Isserlis formula. However one can probably obtain a recursive version (integrating by parts).
Jan 11, 2018 at 13:19 comment added Nawaf Bou-Rabee Have you tried using the moment generating function for a multivariate Gaussian?
Jan 11, 2018 at 12:13 history edited Fabrice Pautot CC BY-SA 3.0
added 12 characters in body; edited title
Jan 11, 2018 at 11:15 history asked Fabrice Pautot CC BY-SA 3.0