aima.core.probability.example.FullJointDistributionMeningitisStiffNeckModel Maven / Gradle / Ivy

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AIMA-Java Core Algorithms from the book Artificial Intelligence a Modern Approach 3rd Ed.

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package aima.core.probability.example;

import aima.core.probability.full.FullJointDistributionModel;

/**
 * 
 * @author Ciaran O'Reilly
 *
 */
public class FullJointDistributionMeningitisStiffNeckModel extends
		FullJointDistributionModel {

	public FullJointDistributionMeningitisStiffNeckModel() {
		super(new double[] {
				// Meningitis * StiffNeck = 4 possible worlds
				// Meningitis = true, StiffNeck = true
				0.000014, // i.e 1/50000 * 0.7
				// Meningitis = true, StiffNeck = false
				0.000006, // i.e. (1/50000) * 0.3
				// Meningitis = false, StiffNeck = true
				0.009986, // i.e. 0.01 - 0.000014
				// Meningitis = false, StiffNeck = false
				0.989994 // i.e. 0.99 - 0.000006
				}, ExampleRV.MENINGITIS_RV, ExampleRV.STIFF_NECK_RV);
	}
}