OSBF-Lua - A Text Classification Module for Lua: The Importance of the Training Method

OSBF­Lua is a C module for the Lua language which implements a Bayesian classifier enhanced with Orthogonal Sparse Bigrams ­ OSB ­ for feature extraction and Exponential Differential Document Count ­ EDDC – for feature selection. These two techniques, combined with the new training method introduced for TREC 2006 produce a highly accurate filter, yet very fast and economic in resources. OSBF­Lua is an Open Source Software available from http://osbf­ lua.luaforge.net. spamfilter.lua is a production­class anti­spam filter available in the same package.