Installs 5 commands that process a git directory tree. Directories containing a file called .ignore are ignored. The git-commitAll command commits all changes to each repository in the tree. The git-evars command writes a script that defines environment variables pointing to git repos. The git...

The library can parse an SQL query (a string) to represent the query using a syntax tree, and it can generate an SQL query from a syntax tree. The syntax tree ca be used to inspect to query, or to modify it.

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 ...

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

acts_as_better_tree is great for anyone who needs a fast tree capable of handling millions of nodes without slowing down on writes like nestedset or on reads like a standard tree.

A Splay Tree is a self adjusting binary search tree with the additional property that recently accessed elements are quick to access again. This makes it useful for caches because the most commonly accessed elements will be the fastest ones to access. This tree has an additional feature that allo...

To make it easier to build and manipulate SQL queries, sql_tree can parse an SQL query to represent it as a tree of nodes and can generate an SQL query given a tree as input

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

A binary tree of one-time singatures known as a merkle tree. Often used in distributed systems such as Git, Cassandra or Bitcoin for efficiently summarizing sets of data.

Print directory or structured data in a tree like format.

git-status-tree is a command line tool that shows git repository changes in a file tree.

A self balancing avl binary search tree class. Also includes BinarySearchTreeHash which is a hash like class that internally uses binary search tree.

Tree_hierarchy allows to form a tree structure based on parent-child relationship with simple and fast computation for large records. Additional feature of updating the parent record with the sum of its child value

Ancestry allows the records of a ActiveRecord model to be organised in a tree structure, using a single, intuitively formatted database column. It exposes all the standard tree structure relations (ancestors, parent, root, children, siblings, descendants) and all of them can be fetched in a singl...

A simple binary tree gem with level order, postorder tree traversal

Trie-like, prefix-tree data structures. First, a prefix-tree based on Arrays, which differs from a traditional trie, which maps strings to values. Second, a more general prefix-tree data structure that works for any type of keys, provided those keys can be transformed to and from an array. Both ...

Multiroot_tree has some of the functions of a typical tree data structure. It can be used to model process, dependencies, and prerequisites.

An Acts As Tree like implementation for MongoMapper based on mongo_mapper_acts_as_tree

fast_tree is an implementation of tree structure using nested sets model

Hitsuji is a library that implements a tree data structure, where each node is represented by a value, points to other values, or performs a function on some values. When the tree is updated, the inputs to the functions will change, hence changing the outputs, eventually propagating the u...