Lightweight, Portable, Flexible Distributed/Mobile Deep Learning with Dynamic, Mutation-aware Dataflow Dep Scheduler; for Python, R, Julia, Scala, Go, JavaScript and more. website

Microsoft Cognitive Toolkit (CNTK), an open source deep-learning toolkit. [Boost]

Toolkit for speech recognition. [Apache]

(3D) Navigation mesh generator and pathfinder, mostly for games. [zlib]

A header only, dependency-free deep learning framework in C++11. [BSD]

Flashlight is a fast, flexible machine learning library written entirely in C++. [BSD]

An open-source cross-platform performance library for deep learning applications. [Apache] website

Simple neural network library in C. [zlib]

Header-only library for using Keras models in C++. [MIT]

Distributed platform for rapid Deep learning application development. [Apache]

Game Behavior Tree Starter Kit. [zlib]

A template-based, ANSI-C++ evolutionary computation library which helps you to write your own stochastic optimization algorithms insanely fast. [LGPL]