# classifier を Homebrew でインストール

classifier のインストール経路、実行ファイル、メタデータ、AI エージェント向けセキュリティノートを確認します。

## インストール

```sh
sudo av install brew:classifier
```

追加のインストールコマンド:

### macOS

- Homebrew (100%):

```sh
brew install classifier
```

  証拠: local Homebrew formula metadata

## パッケージ情報

- **パッケージキー:** brew:classifier
- **パッケージマネージャ:** Homebrew
- **バージョン:** 2.6.0
- **ソース概要:** Text classification with Bayesian, LSI, Logistic Regression, and kNN
- **ホームページ:** <https://rubyclassifier.com>
- **リポジトリ:** <https://github.com/cardmagic/classifier>
- **最終更新:** 2026-06-26T00:37:48Z
- **生成日時:** 2026-08-03T19:37:03+00:00

## 実行可能ファイル

- classifier (エイリアス)

## インストール挙動

- Bottle: 利用不可

## バージョンと鮮度

- ページ生成日: 2026-08-03
- マネージャ版: 2.6.0
## プロジェクトの歴史と使われ方

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.

### プロジェクトの歴史

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.

### 採用の歴史

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.

### 使われ方

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.

### パッケージ好きにとっての重要性

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.

### タイムライン

- 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.

### ソース

- <https://github.com/cardmagic/classifier#readme>
- <https://rubyclassifier.com/docs>
- <https://rubygems.org/api/v1/gems/classifier.json>
- <https://rubygems.org/api/v1/versions/classifier.json>
- <https://api.github.com/repos/cardmagic/classifier>
- <https://api.github.com/repos/cardmagic/classifier/releases>
- <https://formulae.brew.sh/api/formula/classifier.json>


## セキュリティノート

classifier に一致するローカルシークレット処理マニフェストは見つかりませんでした。将来の対応で安定したパッケージ URL を使えるよう、Nucleus パッケージメタデータはここに公開されています。



## Combined YAML source

View the package source record on GitHub. [combined/classifier.yml](https://github.com/mxcl/pkgdb/blob/main/combined/classifier.yml)


## ソース

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- cross-ecosystem install command graph