# -------------------------------------------- # CITATION file created with {cffr} R package # See also: https://docs.ropensci.org/cffr/ # -------------------------------------------- cff-version: 1.2.0 message: 'To cite package "sns" in publications use:' type: software license: GPL-2.0-or-later title: 'sns: Stochastic Newton Sampler (SNS)' version: 1.2.2 doi: 10.18637/jss.v074.c02 identifiers: - type: doi value: 10.32614/CRAN.package.sns abstract: 'Stochastic Newton Sampler (SNS) is a Metropolis-Hastings-based, Markov Chain Monte Carlo sampler for twice differentiable, log-concave probability density functions (PDFs) where the proposal density function is a multivariate Gaussian resulting from a second-order Taylor-series expansion of log-density around the current point. The mean of the Gaussian proposal is the full Newton-Raphson step from the current point. A Boolean flag allows for switching from SNS to Newton-Raphson optimization (by choosing the mean of proposal function as next point). This can be used during burn-in to get close to the mode of the PDF (which is unique due to concavity). For high-dimensional densities, mixing can be improved via ''state space partitioning'' strategy, in which SNS is applied to disjoint subsets of state space, wrapped in a Gibbs cycle. Numerical differentiation is available when analytical expressions for gradient and Hessian are not available. Facilities for validation and numerical differentiation of log-density are provided. Note: Formerly available versions of the MfUSampler can be obtained from the archive .' authors: - family-names: Mahani given-names: Alireza email: alireza.s.mahani@gmail.com - family-names: Mahani given-names: Alireza S. - family-names: Hasan given-names: Asad - family-names: Jiang given-names: Marshall - family-names: Sharabiani given-names: Mansour T.A. preferred-citation: type: article title: 'Stochastic Newton Sampler: The R Package sns' authors: - family-names: Mahani given-names: Alireza S. email: alireza.s.mahani@gmail.com - family-names: Hasan given-names: Asad - family-names: Jiang given-names: Marshall - family-names: Sharabiani given-names: Mansour T. A. journal: Journal of Statistical Software, Code Snippets year: '2016' volume: '74' issue: '2' doi: 10.18637/jss.v074.c02 start: '1' end: '33' repository: https://asmahani.r-universe.dev commit: 766b6821a98ea206fe461d23237bc4a4589c24af date-released: '2022-11-01' contact: - family-names: Mahani given-names: Alireza email: alireza.s.mahani@gmail.com