Synaptical
Synaptical is a Ruby port of synaptic.js
NOTE: This is work in progress and some componets of synaptic.js are still missing
Installation
Add this line to your application's Gemfile:
gem 'synaptical'And then execute:
$ bundle
Or install it yourself as:
$ gem install synaptical
Usage
Usage is identical to synaptic.js.
Example network trained to solve a XOR gate:
input_layer = Synaptical::Layer.new(2)
hidden_layer = Synaptical::Layer.new(3)
output_layer = Synaptical::Layer.new(1)
input_layer.project(hidden_layer)
hidden_layer.project(output_layer)
network = Synaptical::Network.new(
input: input_layer,
hidden: [hidden_layer],
output: output_layer
)
learning_rate = 0.3
10_000.times do
network.activate([0, 0])
network.propagate(learning_rate, [0])
network.activate([0, 1])
network.propagate(learning_rate, [1])
network.activate([1, 0])
network.propagate(learning_rate, [1])
network.activate([1, 1])
network.propagate(learning_rate, [0])
end
network.activate([0, 0])
# => [0.00020797967275049887]
network.activate([0, 1])
# => [0.9991989909682668]
network.activate([1, 0])
# => [0.9992882541963027]
network.activate([1, 1])
# => [0.0011764423621223423]or create the network with the Perceptron architect and the Trainer:
network = Synaptical::Architect::Perceptron.new(2, 3, 1)
trainer = Synaptical::Trainer.new(network)
trainer.train([
{ input: [0, 0], output: [0] },
{ input: [0, 1], output: [1] },
{ input: [1, 0], output: [1] },
{ input: [1, 1], output: [0] }
])
network.activate([0, 0])
# => [0.04564830744951351]
network.activate([0, 1])
# => [0.9590894310802323]
network.activate([1, 0])
# => [0.9112358846059638]
network.activate([1, 1])
# => [0.0832359653922508]Development
After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.
To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.
Contributing
Bug reports and pull requests are welcome on GitHub at https://github.com/wallin/synaptical.