Organise Mongoid model into a tree structure

merkletree - build your own crypto hash trees; named after Ralph Merkle who patented hash trees in 1979; grow your own money on trees

Rumale::Ensemble provides ensemble learning algorithms, such as AdaBoost, Gradient Tree Boosting, and Random Forest, with Rumale interface.

Rumale is a machine learning library in Ruby. Rumale provides machine learning algorithms with interfaces similar to Scikit-Learn in Python. Rumale supports Support Vector Machine, Logistic Regression, Ridge, Lasso, Multi-layer Perceptron, Naive Bayes, Decision Tree, Gradient Tree Boosting, Rando...

Rumale::Tree provides classifier and regression based on decision tree algorithms with Rumale interface.

SVMKit is a machine learninig library in Ruby. SVMKit provides machine learning algorithms with interfaces similar to Scikit-Learn in Python. SVMKit supports Linear / Kernel Support Vector Machine, Logistic Regression, Linear Regression, Ridge, Lasso, Factorization Machine, Naive Bayes, Decision ...

Fully featured tree implementation for Mongoid using the nested set model

Organizes ActiveRecord models into a tree/hierarchy using a materialized path implementation based around PostgreSQL's ltree datatype. ltree's operators ensure that queries are fast and easily understood.

A library for working with Abstract Syntax Trees.

An ActiveRecord plugin for atomic archiving and unarchiving of object trees. Inspired by ActsAsParanoid and PermanentRecord

Recursively traverse trees using a single SQL query

A Gem for syntactically correct parse trees of Ruby source

A Parsing Expression Grammar (PEG) Parser generator DSL for Ruby

Guard::CtagsBundler uses ctags utility and generates 2 files: tags -- with tags generated from project's source tree and gems.tags -- with tags generated from rubygems from project's bundle.

Organize ActiveRecord model into a tree structure using PostgreSQL LTree

This library performs diffs of CSV data, or any table-like source. Unlike a standard diff that compares line by line, and is sensitive to the ordering of records, CSV-Diff identifies common lines by key field(s), and then compares the contents of the fields in eac...

GUI for sortable tree to manage data organized in tree with ancestry gem.

Port of the old, venerable ActsAsTree with a bit of a twist

Binary Tree based bracketing system

Port of the old, venerable ActsAsTree with a bit of a twist