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Install classifier with Homebrew

Text classification with Bayesian, LSI, Logistic Regression, and kNN. Version 2.6.0 via Homebrew; verified 2026-06-26.

Install commandSecurity notes

install

Additional install commands

macOS

Homebrewverified ยท 100%
brew install classifier

local Homebrew formula metadata

overview

Package summary

Text classification with Bayesian, LSI, Logistic Regression, and kNN

Commands and aliases

  • classifier

history

Project history and usage

Ruby Classifier is a Ruby text-classification library and CLI providing Bayesian classification, LSI, logistic regression, k-nearest neighbors, TF-IDF vectorization, streaming training, persistence, and native LSI acceleration.

Project history

The GitHub repository was created in 2008. The gemspec and README describe it as a Ruby library for text classification with Naive Bayes, LSI, logistic regression, kNN, TF-IDF, pluggable persistence, and a native C extension.

The modern 2.x series refreshed the package in late 2025 and 2026, adding current documentation at rubyclassifier.com and a CLI-oriented Homebrew distribution path.

Adoption history

RubyGems reported 1,162,163 total downloads for the classifier gem, making the Ruby package history much larger than the Homebrew CLI footprint. Homebrew packages version 2.6.0 and reported 131 installs over the prior 365 days.

How it is used

As a Ruby gem, users require classifier classes for Bayes, LSI, logistic regression, kNN, and TF-IDF workflows. As a CLI, users can classify text with pretrained models, list models, train categories from files, and classify new strings.

Why package nerds care

classifier is notable because an old Ruby ML/text-processing gem now spans RubyGems, generated API docs, a dedicated docs site, native extension compilation, and a Homebrew CLI package.

Timeline

  • 2008: GitHub repository created.
  • 2024: v1.4.4 released in the 1.x line.
  • 2025: v2.0.0 released.
  • 2026: v2.6.0 released and packaged by Homebrew as stable.

Related projects

  • The package relates to RubyGems and RubyDoc as its primary Ruby distribution and API documentation surfaces.
  • Its README positions it against older forks by emphasizing additional algorithms, incremental LSI, streaming, persistence, and native acceleration.

security posture

No protected-tool coverage found yet

No matching local secret-handling manifest was found for classifier. Nucleus package metadata is still published here so future coverage has a stable package URL.

Install behavior

  • No Homebrew post-install hook is recorded in formula metadata.
  • Homebrew bottle metadata is available for 6 platform targets.
  • Installs with 1 runtime dependencies.

Recommended review

Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.

executables

Installed executables

CommandKindExposureNote
classifiercliglobal executable

freshness

Version and freshness

These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.

page generated2026-07-08
manager version2.6.0
manager updated2026-06-26
local dataok
upstreamcurrent
latest detectedv2.6.0

https://github.com/cardmagic/classifier

  • okNo freshness warnings were generated.

install metadata

Package metadata

Package keybrew:classifier
Version2.6.0
Package managerHomebrew
Package manager pagehttps://formulae.brew.sh/formula/classifier
Homepagehttps://rubyclassifier.com
Repositoryhttps://github.com/cardmagic/classifier
Upstream docshttps://rubyclassifier.com/docs
LicenseLGPL-2.1-or-later
Source archivehttps://github.com/cardmagic/classifier/archive/refs/tags/v2.6.0.tar.gz
Last updated2026-06-26T00:37:48Z
Pulseupdated
Dependenciesruby
Bottleavailable (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux)
Homebrew post-installnot defined
Servicenone declared

registry facts

Source database details

Source DatabaseHomebrew formula API
Taphomebrew/core
Full Nameclassifier
Version Scheme0
Revision0
Bottle Stable Root URLhttps://ghcr.io/v2/homebrew/core
Deprecatedno
Disabledno
Keg Onlyno
URL Keys
  • stable

package graph

Links come from deterministic package relationships, av.db category and tag curation, ecosystem matches, and package hub membership.

Related tools

  • rubyRuntime dependency declared by Homebrew.

Same workflow

  • djl-servingShares av.db curated category or tags: cli, data, machine-learning.
  • lightgbmShares av.db curated category or tags: cli, data, machine-learning.
  • malletShares av.db curated category or tags: cli, data, machine-learning.
  • ncnnShares av.db curated category or tags: cli, data, machine-learning.
  • rgfShares av.db curated category or tags: cli, data, machine-learning.
  • vowpal-wabbitShares av.db curated category or tags: cli, data, machine-learning.

source trail

Generated from repository data

This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.

Used sources

  • Geiger risk classifier
  • Nucleus package database
  • av.db category and tag curation
  • cross-ecosystem install command graph
  • curated package history
  • package relationship graph
  • package version freshness
  • package-page enrichment