I was wondering if there is any good and clean object-oriented programming (OOP) implementation of Bayesian filtering for spam and text classification? This is just for learning purposes.


I definitely recommend Weka which is an Open Source Data Mining Software written in Java:


As mentioned above, it ships with a bunch of different classifiers like SVM, Winnow, C4.5, Naive Bayes (of course) and many more (see the API doc). Note that a lot of classifiers are known to have much better perfomance than Naive Bayes in the field of spam detection or text classification.

Furthermore Weka brings you a very powerful GUI


Check out Chapter 6 of Programming Collective Intelligence


Maybe https://ci-bayes.dev.java.net/ or http://www.cs.cmu.edu/~javabayes/Home/node2.html?

I never played with it either.


Here is an implementation of Bayesian filtering in C#: A Naive Bayesian Spam Filter for C# (hosted on CodeProject).


nBayes - another C# implementation hosted on CodePlex


In French, but you should be able to find the download link :) PHP Naive Bayesian Filter

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