Implement Bayesian inference using PHP: Part 3, IBM developerWorks, 11 May 2004.

In this third article on Bayesian inference, Paul Meagher continues to explore the roles it can play in survey analysis and medical diagnosis. In this article we cover classification and explain relevant concepts by building a simple classifier.

• Bayes3.tar.gz

Last updated: June 4, 2004 - 4:50 PM AST

Demos:

• tests/load_raw_data.php - test of ClassifierDiagnostics using raw data as input (via constructor method).
• tests/classifier_load_test.php - test of ClassifierDiagnostics using joint frequency data as input (via loadJointFrequency() method).
• tests/naive_bayes.php - test of the NaiveBayes classifier. View naive_bayes.php source for installation steps.

Source code listing:

• tests/load_raw_data.php
• tests/load_joint_frequency.php
• ClassifierDiagnostics.php
• NaiveBayes.php
• tests/naive_bayes.php
• sql.txt
• connect.php