Módszerek összehasonlítása

	No-U-Turn Sampler (NUTS)	Hamiltonian Monte Carlo
Tudományterület	Bayes-statisztika	Bayes-statisztika
Módszercsalád	Bayesian methods	Bayesian methods
Keletkezés éve	2014	1987
Megalkotó	Matthew D. Hoffman & Andrew Gelman	—
Típus	Sampling algorithm (MCMC)	Gradient-based Markov chain Monte Carlo sampler
Alapmű	Hoffman, M. D., & Gelman, A. (2014). The No-U-Turn Sampler: Adaptively setting path lengths in Hamiltonian Monte Carlo. Journal of Machine Learning Research, 15(47), 1593–1623.	Duane, S., Kennedy, A. D., Pendleton, B. J., & Roweth, D. (1987). Hybrid Monte Carlo. Physics Letters B, 195(2), 216–222.
Alternatív nevek	NUTS, No-U-Turn HMC, adaptive Hamiltonian Monte Carlo, self-tuning HMC	HMC, Hybrid Monte Carlo, NUTS, No-U-Turn Sampler
Kapcsolódó	4	3
Összefoglaló	The No-U-Turn Sampler (NUTS) is a self-tuning Markov chain Monte Carlo algorithm introduced by Hoffman and Gelman (2014) that extends Hamiltonian Monte Carlo (HMC) by automatically determining the optimal number of leapfrog steps, eliminating the most sensitive manual tuning parameter. NUTS is the default sampler in Stan and PyMC and has made large-scale, high-dimensional Bayesian inference practically accessible without requiring users to set trajectory lengths by hand.	Hamiltonian Monte Carlo (HMC) is a gradient-based Markov chain Monte Carlo algorithm that uses the geometry of the log-posterior surface to make large, informed jumps through parameter space instead of the small random steps of classical MCMC. Originally introduced for lattice field theory by Duane, Kennedy, Pendleton, and Roweth (1987) under the name Hybrid Monte Carlo, and brought into mainstream statistics by Radford Neal's authoritative 2011 chapter, HMC is today the default sampler in Stan and PyMC and is widely regarded as the state-of-the-art engine for Bayesian posterior inference in high-dimensional models.