R Observatory: Metrics for poismf version 0.4.0-4

Balamuta, James Joseph

doi:10.5281/zenodo.21843040

poismf

0.4.0-4Package record

Factorization of Sparse Counts Matrices Through Poisson Likelihood

0packages depend

3.5Kdownloads / year

–test coverage

11/13flavors OK

Overview

About

Maintained by David CortesCRAN page ↗GitHub ↗Issues ↗

Creates a non-negative low-rank approximate factorization of a sparse counts matrix by maximizing Poisson likelihood with L1/L2 regularization (e.g. for implicit-feedback recommender systems or bag-of-words-based topic modeling) (Cortes, (2018) arXiv:1811.01908), which usually leads to very sparse user and item factors (over 90% zero-valued). Similar to hierarchical Poisson factorization (HPF), but follows an optimization-based approach with regularization instead of a hierarchical prior, and is fit through gradient-based methods instead of variational inference.

Install

R (CRAN)pak (dev)Ubuntu (r2u)Fedora (COPR)openSUSE (OBS)

install.packages("poismf", repos = "https://cloud.r-project.org/")

Installs the current CRAN release. Prebuilt binaries on Windows and macOS.

if (!requireNamespace("pak", quietly = TRUE))
  install.packages("pak", repos = "https://cloud.r-project.org/")
pak::pak("david-cortes/poismf")

Development version from david-cortes/poismf. Installs pak first if it is not already available.

Release

# enable cranapt (r2u) if it is not already set up, then install
grep -rqs r2u.stat.illinois.edu /etc/apt/sources.list /etc/apt/sources.list.d/ \
  || curl -fsSL https://raw.githubusercontent.com/eddelbuettel/r2u/master/inst/scripts/add_cranapt_noble.sh | sudo bash
sudo apt install -y r-cran-poismf

Fast Ubuntu binaries via r2u (no compilation). The cranapt setup runs once and is skipped when it is already enabled. We list this channel from recorded r2u download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

bspm (used by r2u) also needs make: sudo apt install make

# enable the iucar/cran COPR if it is not already present, then install
ls /etc/yum.repos.d/*iucar*cran*.repo >/dev/null 2>&1 \
  || sudo dnf copr enable -y iucar/cran
sudo dnf install -y R-CRAN-poismf

RPMs from the iucar/cran COPR, rebuilt from CRAN.

For install.packages() integration in R, also: sudo dnf install R-CoprManager

# add the autoCRAN OBS repo (Tumbleweed) if it is missing, then install
zypper -q lr | grep -qi autoCRAN \
  || sudo zypper addrepo https://download.opensuse.org/repositories/devel:/languages:/R:/autoCRAN/openSUSE_Tumbleweed/devel:languages:R:autoCRAN.repo
sudo zypper install -y R-poismf

RPMs auto-built from CRAN on openSUSE OBS (Tumbleweed). We list this channel from recorded autoCRAN download activity rather than from a live index of the repository, so treat it as last known rather than guaranteed.

Health

CRAN checks

2NOTE11OK

Check messages

NOTECRAN incoming feasibilityr-devel-linux-x86_64-debian-clang, r-devel-linux-x86_64-debian-gcc

Maintainer: ‘David Cortes <david.cortes.rivera@gmail.com>’

The Description field contains
  bag-of-words-based topic modeling) (Cortes, (2018) <arXiv:1811.01908>),
Please refer to arXiv e-prints via their arXiv DOI <doi:10.48550/arXiv.YYMM.NNNNN>.

CRAN check page ↗

Slowest check: 2.7 min · r-devel-windows-x86_64

Status changes

NOTE11 OK, 2 NOTENow
NOTE12 OK, 2 NOTE2026-03-10

Advisories

none known

How this is measured·How advisories are found

Documentation

In release 0.4.0-4

README· In the repository, left out of the releaseVignettesNoNEWSNoCitation fileNoWebsitenot declared in DESCRIPTION

Help pages: 11
Examples that run: 100%2 run in a plain check
Exported functions with examples: 18%
Documented parameters: 97%
Return-value docs: 82%
Help pages citing references: 9%

How these are measured

Downloads

3.5K

CRAN downloads in the past year

Rank #10,173 · ~10/day · ~292/mo

Releases R versions

Daily download trend is not available in this view yet.

36930 days

99990 days

3.5K1 year

Compare downloads with other packages →

Also on368 r2u4 autocran

How downloads are counted

Repository

david-cortes/poismf ↗Account: david-cortes

47Stars

13Forks

0Open issues

0Open PRs

0Releases

139Commits

2Commit identities

poisson-factorizationimplicit-feedback

License file reads as BSD-2-Clause · 139 commits · Last activity 2025-05-09 · 0% stars, 30d · The default branch showed an older version (0.4.0-3) than CRAN on 2026-10-21

Responsiveness

How these are sampled

PRs merged (all time): 100%
Median days to close, 50 most recently updated closed issues: 36
Median days to close, 50 most recently updated closed PRs: 0

Stars over time

2024-12-10 · 452026-07-07 · 47

How these are measured

PracticesBeta

1 development-tooling and community-health practice detected across 1 family in the upstream repository

Checks run against github.com/david-cortes/poismf on 2026-10-21.

Git structural (1)

.gitattributes

How this is detected·Detection ruleset v4 (2026-10-20)

Dependencies

Declared dependencies

0 external dependencies (excludes base and recommended)

Installing poismf adds no packages beyond those that come with R.

Depends (0)

none

Imports (2)

Matrixmethods

LinkingTo (0)

none

Suggests (0)

none

Enhances (0)

none

Dependency license breakdown →

Reverse dependencies

0direct

0indirect

Nothing depends on this yet.

How these are counted

Code & Tests

People & History

People (3)

David Cortes

Stephen Nash

Copyright holder · added in 0.2.3

Copyright holder of included tnc library

Jean-Sebastien Roy

Copyright holder · added in 0.2.3

Copyright holder of included tnc library

Releases (20)

Pick two releases to compare their code metrics.

R
R 4.6.0 released · 2026-04-24
R
R 4.5.0 released · 2025-04-11
R
R 4.4.0 released · 2024-04-24
R
R 4.3.0 released · 2023-04-21
unarchivedReturned to CRAN
2023-03-26
0.4.0-4Latest
record
2023-03-26 · current release · diff ↗
archivedRemoved from CRAN
2023-01-26
configure issues were not corrected in time
0.4.0-3
record
2023-01-13 · diff ↗
0.4.0-2
record
2022-10-25 · diff ↗
0.4.0-1
record
2022-08-15 · diff ↗
R
R 4.2.0 released · 2022-04-22
0.4.0
record
2022-02-25 · diff ↗ ·
removed 1 export
poisson.llk
0.3.1-3
record
2021-09-26 · diff ↗
0.3.1-2
record
2021-09-02 · diff ↗
0.3.1-1
record
2021-08-21 · diff ↗
0.3.1
record
2021-07-13 · diff ↗

Show 14 earlier eventsHide 14 earlier events

R
R 4.1.0 released · 2021-05-18
0.3.0-1
record
2021-05-08 · diff ↗ ·
removed 1 export
get.all.predictions
0.3.0
record
2021-04-06 · diff ↗
0.2.7
record
2021-01-08 · diff ↗ ·
added 3 exports
predict.poismf, print.poismf, summary.poismf
0.2.6
record
2020-11-13 · diff ↗
0.2.5
record
2020-09-12 · diff ↗
0.2.4
record
2020-08-26 · diff ↗
0.2.3
record
2020-08-10 · diff ↗ ·
removed 2 exports
calc.all.counts, evaluate.poisson.llk

added 2 exports
get.all.predictions, poisson.llk
0.2.0
record
2020-05-27 · diff ↗ ·
added 9 exports
poismf_unsafe, factors.single, factors, topN, topN.new, calc.all.counts, get.factor.matrices, get.model.mappings, evaluate.poisson.llk
R
R 4.0.0 released · 2020-04-24
0.1.3
record
2019-09-05 · diff ↗
0.1.2
record
2019-08-29 · diff ↗
0.1.1
record
2019-08-01
R
R 3.6.0 released · 2019-04-26

Package metadata

First published: 2019-08-01
Total releases: 20 / 7 yrs
License: BSD_2_clause + file LICENSE OSI
Download size: 58 KB

Cite

Cite this package

Run in R for the authors' preferred citation:

citation("poismf")

Format

Cortes, D., Nash, S., & Roy, J. (2023). poismf: Factorization of Sparse Counts Matrices Through Poisson Likelihood (Version 0.4.0-4) [Computer software]. https://doi.org/10.32614/CRAN.package.poismf

This package has no citation file, so citation() returns this entry built from DESCRIPTION.

Cite the R Observatory

For a number measured here: a download total, a coverage figure, an archival date.

Format

APA

Balamuta, J. J. (2026). R Observatory: Metrics for poismf version 0.4.0-4 [Data set]. HJJB, LLC. Data release v2026-10-23. https://doi.org/10.5281/zenodo.21843040

From data release v2026-10-23, which the citation names so these numbers can be found later. More on citing and the projects behind them.

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