Rumale is a machine learning library in Ruby. Rumale::KernelMachine provides kernel method-based algorithms, such as Kernel Support Vector Machine, Kernel Principal Componenet Analysis, and Kernel Ridge Regression, with Rumale interface.
Add this line to your application's Gemfile:
gem 'rumale-kernel_machine'
And then execute:
$ bundle install
Or install it yourself as:
$ gem install rumale-kernel_machine
The gem is available as open source under the terms of the BSD-3-Clause License.