Resources for Machine Learning in Ruby
===

Gems
---

* [classifier-reborn](https://github.com/jekyll/classifier-reborn): Bayesian and LSI classification  
dependencies: GSL

* [decisiontree](https://github.com/igrigorik/decisiontree)
ID3-based implementation of the ML Decision Tree algorithm  
dependencies: Graphviz

* [similarity](https://github.com/bbcrd/Similarity): 
Calculate similarity between documents using TF-IDF weights  
dependencies: GSL

* [rb-libsvm](https://github.com/febeling/rb-libsvm): 
Ruby language bindings for LIBSVM  
dependencies: None (LIBSVM is bundled with the project)

* [ruby-fann](https://github.com/tangledpath/ruby-fann): 
Ruby library for interfacing with FANN (Fast Artificial Neural Network)  
dependencies: None (FANN is bundled with the project)

* [tlearn-rb](https://github.com/josephwilk/tlearn-rb): 
Recurrent Neural Network library for Ruby  
http://blog.josephwilk.net/ruby/recurrent-neural-networks-in-ruby.html

* [k_means](https://github.com/reddavis/K-Means): 
Attempting to build a fast, memory efficient K-Means program

* [knn](https://github.com/reddavis/knn): 
Simple K Nearest Neighbour Algorithm

* [distance_measures](https://github.com/reddavis/Distance-Measures):
A bunch of distance measures that extend Array

* [fast-stemmer](https://github.com/romanbsd/fast-stemmer):
Fast Porter stemmer based on a C version of the algorithm  

* [statsample](https://github.com/clbustos/statsample): 
A suite for basic and advanced statistics on Ruby  
dependencies: GSL

* [statistics2](https://github.com/abscondment/statistics2): 
Provides normal, Chi-square, t- and F- probability distributions for Ruby

* [ruby-graphviz](https://github.com/glejeune/Ruby-Graphviz)  
dependencies: Graphviz

* [rbgnuplot](https://github.com/rdp/ruby_gnuplot/tree/master)   
dependencies: Gnuplot

* [rb-gsl](https://github.com/blackwinter/rb-gsl): 
Ruby interface to the GNU Scientific Library    
dependencies: GSL

* [ruby-opencv](https://github.com/ruby-opencv/ruby-opencv/): 
OpenCV wrapper for Ruby  
dependencies: OpenCV


Base libraries
---

* [GSL (GNU Scientific Library)](http://www.gnu.org/software/gsl/)    
```brew install gsl```

* [OpenCV](http://opencv.org/)   
```brew tap homebrew/science && brew install opencv```

* [Graphviz](http://www.graphviz.org/)    
```brew install graphviz```

* [Gnuplot](http://www.gnuplot.info/)    
```brew install gnuplot```


Heroku buildpacks
---

* [GSL and Ruby buildpack](https://github.com/tomwolfe/heroku-buildpack-gsl-ruby)

* [OpenCV and Ruby buildpack](https://github.com/lilibethdlc/heroku-buildpack-ruby-opencv)