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# CITATION.cff file created with {cffr} R package
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cff-version: 1.2.0
message: 'To cite package "tulpa" in publications use:'
type: software
license: MIT
title: 'tulpa: Templated Unified Library for Posterior Approximation in Bayesian Hierarchical
  Models'
version: 0.7.5
identifiers:
- type: doi
  value: 10.32614/CRAN.package.tulpa
abstract: 'A general-purpose engine for fitting Bayesian hierarchical models with
  spatial fields, temporal effects, spatially varying coefficients, and multiple inference
  backends. Scalable spatial structure includes Hilbert space approximate Gaussian
  processes (HSGP; Riutort-Mayol et al. 2023 <https://doi.org/10.1007/s11222-022-10167-2>),
  nearest-neighbor Gaussian processes (NNGP; Datta et al. 2016 <https://doi.org/10.1080/01621459.2015.1044091>),
  intrinsic conditional autoregressive models (ICAR; Besag, York, and Mollie 1991
  <https://doi.org/10.1007/BF00116466>), the reparameterized Besag-York-Mollie model
  (BYM2; Riebler et al. 2016 <https://doi.org/10.1177/0962280216660421>), and stochastic
  partial differential equation fields (SPDE; Lindgren, Rue, and Lindstrom 2011 <https://doi.org/10.1111/j.1467-9868.2011.00777.x>).
  Temporal structure covers random walks, autoregressive processes, and Gaussian processes.
  Inference is tiered by correctness guarantee: exact Hamiltonian Monte Carlo with
  the No-U-Turn sampler, Laplace and nested Laplace approximations with hyperparameter
  integration (Rue, Martino, and Chopin 2009 <https://doi.org/10.1111/j.1467-9868.2008.00700.x>),
  and variational inference. Model-specific packages plug observation likelihoods
  into the engine through a templated C++ callback interface.'
authors:
- family-names: Colling
  given-names: Gilles
  email: gilles.colling051@gmail.com
  orcid: https://orcid.org/0000-0003-3070-6066
preferred-citation:
  type: manual
  title: 'tulpa: Templated Unified Library for Posterior Approximation in Bayesian
    Hierarchical Models'
  authors:
  - family-names: Colling
    given-names: Gilles
    orcid: https://orcid.org/0000-0003-3070-6066
    email: gilles.colling051@gmail.com
  year: '2026'
  notes: R package version 0.7.5
  url: https://github.com/gcol33/tulpa
repository: https://gcol33.r-universe.dev
repository-code: https://github.com/gcol33/tulpa
commit: 265a79f2a345fb7f3cd6cd9366004e1a2a7c2db2
url: https://gillescolling.com/tulpa/
date-released: '2026-10-12'
contact:
- family-names: Colling
  given-names: Gilles
  email: gilles.colling051@gmail.com
  orcid: https://orcid.org/0000-0003-3070-6066