Bayesian classifier on top of Redis
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What is BayesOnRedis?

Bayesian classifier on top of Redis

Why on Redis?

Redis is a persistent in-memory database with supports for various data structures such as lists, sets, and ordered sets. All this data types can be manipulated with atomic operations to push/pop elements, add/remove elements, perform server side union, intersection, difference between sets, and so forth.

Because of Redis properties:

  • It is extremely easy to implement simple algorithm such as bayesian filter.

  • The persistence of Redis means that the Bayesian implementation can be used in real production environment.

  • Even though I don't particularly care about performance at the moment. Redis benchmarks give me confidence that the implementation can scale to relatively large training data.

How to install?

gem install bayes_on_redis

Getting started

# Create instance of BayesOnRedis and pass your Redis information.
# Of course, use real sentences for much better accuracy.
# Unless if you want to train spam related things.
bor = => '', :redis_port => 6379, :redis_db => 5)

# Teach it
bor.train "good", "sweet awesome kick-ass cool pretty smart"
bor.train "bad", "sucks lame boo death bankrupt loser sad"

# Then ask it to classify text.
bor.classify("awesome kick-ass ninja can still be lame.")

for Pythonistas

BayesOnRedis is also available in Python. With the same API.


Fork and send pull requests.