TensorFlow

TensorFlow - the end-to-end machine learning platform - for Ruby

:fire: Uses the C API for blazing performance

Installation

Install TensorFlow. For Homebrew, use:

brew install tensorflow

Add this line to your application’s Gemfile:

gem 'tensorflow'

Getting Started

This library follows the TensorFlow 2.0 Python API. Many methods and options are missing at the moment. PRs welcome!

Constants

a = Tf.constant(2)
b = Tf.constant(3)
a + b

Variables

v = Tf::Variable.new(0.0)
w = v + 1

FizzBuzz

def fizzbuzz(max_num)
  counter = Tf.constant(0)
  max_num.times do |i|
    num = Tf.constant(i + 1)
    if (num % 3).to_i == 0 && (num % 5).to_i == 0
      puts "FizzBuzz"
    elsif (num % 3).to_i == 0
      puts "Fizz"
    elsif (num % 5).to_i == 0
      puts "Buzz"
    else
      puts num.to_i
    end
  end
end

fizzbuzz(15)

Keras

Coming soon

mnist = Tf::Keras::Datasets::MNIST
(x_train, y_train), (x_test, y_test) = mnist.load_data
x_train = x_train / 255.0
x_test = x_test / 255.0

model = Tf::Keras::Models::Sequential.new([
  Tf::Keras::Layers::Flatten.new(input_shape: [28, 28]),
  Tf::Keras::Layers::Dense.new(128, activation: "relu"),
  Tf::Keras::Layers::Dropout.new(0.2),
  Tf::Keras::Layers::Dense.new(10, activation: "softmax")
])

model.compile(optimizer: "adam", loss: "sparse_categorical_crossentropy", metrics: ["accuracy"])
model.fit(x_train, y_train, epochs: 5)
model.evaluate(x_test, y_test)

TensorFlow Installation

Mac

Run:

brew install tensorflow

Linux

Download the shared library and move libtensorflow.so to /usr/local/lib.

Windows

Download the shared library and move tensorflow.dll to C:\Windows\System32.

History

View the changelog

Contributing

Everyone is encouraged to help improve this project. Here are a few ways you can help: