public:t-622-arti-14-1:lab_5_-_bayesian_networks

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public:t-622-arti-14-1:lab_5_-_bayesian_networks [2014/03/04 10:55] stephan |
public:t-622-arti-14-1:lab_5_-_bayesian_networks [2014/03/04 10:59] (current) stephan |
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* http://www.cs.cmu.edu/~javabayes/ (a slightly older Java applet) | * http://www.cs.cmu.edu/~javabayes/ (a slightly older Java applet) | ||

- | Here is a short explanation on how to use the first tool: The application has two tabs "Create" and "Solve". In "Create" you can create and modify a Bayesian network, in "Solve" you can compute arbitrary probabilities using the network. | + | ==== Short explanation on how to use the first tool ==== |

+ | | ||

+ | The application has two tabs "Create" and "Solve". In "Create" you can create and modify a Bayesian network, in "Solve" you can compute arbitrary probabilities using the network. | ||

Suppose you have a network with nodes A and B, where B depends on A. | Suppose you have a network with nodes A and B, where B depends on A. | ||

To create the network, you need to: | To create the network, you need to: | ||

Line 21: | Line 23: | ||

* click on "Query" and then on node A (select Brief query mode if asked). | * click on "Query" and then on node A (select Brief query mode if asked). | ||

* You should now see the probabilities for <latex>$P(A)$</latex> and <latex>$P(\neg A)$</latex> under the condition that B = false. | * You should now see the probabilities for <latex>$P(A)$</latex> and <latex>$P(\neg A)$</latex> under the condition that B = false. | ||

+ | |||

+ | ==== Laws of Probabilities ==== | ||

The following laws of probabilities might be helpful for developing formulas: | The following laws of probabilities might be helpful for developing formulas: |

/var/www/ailab/WWW/wiki/data/pages/public/t-622-arti-14-1/lab_5_-_bayesian_networks.txt · Last modified: 2014/03/04 10:59 by stephan