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# CITATION file created with {cffr} R package
# See also: https://docs.ropensci.org/cffr/
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cff-version: 1.2.0
message: 'To cite package "nmfkc" in publications use:'
type: software
license: MIT
title: 'nmfkc: Non-Negative Matrix Factorization with Kernel Covariates'
version: 0.7.3
identifiers:
- type: doi
  value: 10.32614/CRAN.package.nmfkc
abstract: 'Performs Non-negative Matrix Factorization (NMF) with Kernel Covariates.
  Given an observation matrix and kernel covariates, it optimizes both a basis matrix
  and a parameter matrix. Notably, if the kernel matrix is an identity matrix, the
  method simplifies to standard NMF. Also provides NMF with Random Effects (NMF-RE)
  via nmfre(), which estimates a mixed-effects model combining covariate-driven scores
  with unit-specific random effects together with wild bootstrap inference, and NMF-based
  Structural Equation Modeling (NMF-SEM) via nmf.sem(), which fits a two-block input-output
  model for blind source separation and path analysis. References: Satoh (2025) <https://doi.org/10.48550/arXiv.2403.05359>;
  Satoh (2025) <https://doi.org/10.48550/arXiv.2510.10375>; Satoh (2025) <https://doi.org/10.48550/arXiv.2512.18250>;
  Satoh (2026) <https://doi.org/10.48550/arXiv.2603.01468>; Satoh (2026) <https://doi.org/10.1007/s42081-025-00314-0>.'
authors:
- family-names: Satoh
  given-names: Kenichi
  email: kenichi-satoh@biwako.shiga-u.ac.jp
  orcid: https://orcid.org/0000-0003-4436-9347
preferred-citation:
  type: manual
  title: 'nmfkc: Non-negative Matrix Factorization with Kernel Covariates'
  authors:
  - family-names: Satoh
    given-names: Kenichi
    email: kenichi-satoh@biwako.shiga-u.ac.jp
    orcid: https://orcid.org/0000-0003-4436-9347
  year: '2026'
  notes: R package version 0.6.7
  url: https://CRAN.R-project.org/package=nmfkc
repository: https://ksatohds.r-universe.dev
repository-code: https://github.com/ksatohds/nmfkc
commit: c6803b3d31b830e78b2898b15bd7f63dd1fe9ed4
url: https://ksatohds.github.io/nmfkc/
date-released: '2026-05-14'
contact:
- family-names: Satoh
  given-names: Kenichi
  email: kenichi-satoh@biwako.shiga-u.ac.jp
  orcid: https://orcid.org/0000-0003-4436-9347
references:
- type: generic
  title: Wild Bootstrap Inference for Non-Negative Matrix Factorization with Random
    Effects
  authors:
  - family-names: Satoh
    given-names: Kenichi
  year: '2026'
  notes: arXiv:2603.01468
  url: https://arxiv.org/abs/2603.01468
- type: generic
  title: Applying non-negative matrix factorization with covariates to structural
    equation modeling for blind input-output analysis
  authors:
  - family-names: Satoh
    given-names: Kenichi
  year: '2025'
  notes: arXiv:2512.18250
  url: https://arxiv.org/abs/2512.18250
- type: generic
  title: Applying non-negative matrix factorization with covariates to label matrix
    for classification
  authors:
  - family-names: Satoh
    given-names: Kenichi
  year: '2025'
  notes: arXiv:2510.10375
  url: https://arxiv.org/abs/2510.10375
- type: article
  title: Applying non-negative Matrix Factorization with Covariates to Multivariate
    Time Series Data as a Vector Autoregression Model
  authors:
  - family-names: Satoh
    given-names: Kenichi
  journal: Japanese Journal of Statistics and Data Science
  year: '2025'
  doi: 10.1007/s42081-025-00314-0
- type: generic
  title: Applying Non-negative Matrix Factorization with Covariates to the Longitudinal
    Data as Growth Curve Model
  authors:
  - family-names: Satoh
    given-names: Kenichi
  year: '2024'
  notes: arXiv:2403.05359
  url: https://arxiv.org/abs/2403.05359
- type: article
  title: On Non-negative Matrix Factorization Using Gaussian Kernels as Covariates
  authors:
  - family-names: Satoh
    given-names: Kenichi
  journal: Japanese Journal of Applied Statistics
  year: '2023'
  volume: '52'
  issue: '2'
  doi: 10.5023/jappstat.52.59
  start: '1'
  end: '16'