Green Garden is the definitive Ruby gem to handle common Trees operations by using fancy code argued on Tree Traversal theorem.

Adds Parser::Source::TreeRewriter to parser, until next release

TransformTree provides an API for buildng trees of closures and executing those closures on provided input. This allows users to output all possible combinations of their desired transformations. A small library of useful transformations is included.

A thor extension for generating directory structures from file trees defined in YAML

A parser to generate a tree structure from a logical query string using treetop.

A gem consisting of two parts: A Treetop-based grammar which allows to parse save games of the game "Don't Starve" to Ruby objects, and additions to Ruby core classes to dump those back into the same format.

A simple vcard parser using Treetop

A gem to navigate through upcoming TreePeople events.

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

ID3-based implementation of the M.L. Decision Tree algorithm

Drag&Drop GUI for awesom_nested_set. Render Tree Helper. Very fast! Ready for Rails 4

Drag&Drop GUI helper for awesome_nested_set gem. Sortable tree view helper

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...

A gem that adds simple support for organizing ActiveRecord models into parent–children relationships.

A RBTree is a sorted associative collection that is implemented with a Red-Black Tree. It maps keys to values like a Hash, but maintains its elements in ascending key order. The interface is the almost identical to that of Hash. This is a fork of the original gem that fixes various bugs on Ruby ...

A tree structure for Mongoid documents using the materialized path pattern

This gem facilitates modeling a test suite that is written in Gherkin (e.g. Cucumber, SpecFlow, Lettuce, etc.). It does this by providing an abstraction layer on top of the Abstract Syntax Tree that the 'cucumber-gherkin' gem generates when parsing features, as well as providing models for featur...

AI4R is a lightweight, educational Ruby library featuring clean implementations of core machine learning and AI algorithms—such as decision trees, neural networks, k-means, genetic algorithms, and even a bit size Transformers architecture covering encoder, decoder, and seq2seq variations. Designe...

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

A crit bit tree, also known as a Binary Patricia Trie is a trie (https://en.wikipedia.org/wiki/Trie), also called digital tree and sometimes radix tree or prefix tree (as they can be searched by prefixes), is an ordered tree data structure that is used to store a dynamic set or associative array...