Naive Bayes Classifier¶ ↑
This is an extremely simple, straight forward Naive Bayes implementation.
Install¶ ↑
gem sources -a -http://gemcutter.org sudo gem install naive_bayes
How To Use¶ ↑
require 'rubygems' require 'naive_bayes' a = NaiveBayes.new(:spam, :ham) a.train(:spam, 'bad', 'word') a.train(:ham, 'good', 'word') b = "this is a bad sentence".split(' ') a.classify(*b) #=> [:spam, 0.03125]
You can also tell your classifier to save itself, so its easy for you to pick up where you left off:
require 'rubygems' require 'naive_bayes' a = NaiveBayes.new(:spam, :ham) a.db_filepath = 'path/to/anywhere.nb' a.train(:spam, 'bad', 'word') a.train(:ham, 'good', 'word') a.save
Some time goes past and we want to classify a new document we just received…
require 'rubygems' require 'naive_bayes' a = NaiveBayes.load('path/to/file') b = "this is a bad sentence".split(' ') # It's as if we were never apart a.classify(*b) #=> [:spam, 0.03125]
Copyright¶ ↑
Copyright © 2009 Red Davis. See LICENSE for details.