Cadmium::BayesClassifier

This is a native-bayes classifier which used Laplace Smoothing. It can be trained to categorize sentences based on the words in that sentence.

Example:

classifier = Cadmium.bayes_classifier.new

# Train some angry examples
classifier.train("omg I can't believe you would do that to me", "angry")
classifier.train("I hate you so much!", "angry")
classifier.train("Just go. I don't need this.", "angry")
classifier.train("You're so full of shit!", "angry")

# Some happy ones
classifier.train("omg you're the best!", "happy")
classifier.train("I can't believe how happy you make me", "happy")
classifier.train("I love you so damn much!", "happy")
classifier.train("You're the best!", "happy")

# And some indifferent ones
classifier.train("Idk, what do you think?", "indifferent")
classifier.train("yeah that's ok", "indifferent")
classifier.train("cool", "indifferent")
classifier.train("I guess we could do that", "indifferent")

# Now let's test it on a sentence
classifier.categorize("You shit head!")
# => "angry"

puts classifier.categorize("You're the best :)")
# => "happy"

classifier.categorize("idk, my bff jill?")
# => "indifferent"