Skip to content
master
Go to file
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
lib
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

README.rdoc

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 © 2009 Red Davis. See LICENSE for details.

About

Simple Naive Bayes classifier

Resources

License

Languages

You can’t perform that action at this time.