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# do anyone know theory of laplace,gain,p-s,conviction in association rule

hi all

does anyone know tutorial how to count laplace,gain,p-s,conviction in association rule. As I know association rule, usually use support,confidence and lift .But when I generate rule from rapidminer ,i got 4 more variables and i don't understand what it used for and how to count.

tHANK You for your attention and I hope someone can help me with this one.

does anyone know tutorial how to count laplace,gain,p-s,conviction in association rule. As I know association rule, usually use support,confidence and lift .But when I generate rule from rapidminer ,i got 4 more variables and i don't understand what it used for and how to count.

tHANK You for your attention and I hope someone can help me with this one.

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## Answers

4Contributor I4Contributor Iplease help me I really need to what they mean, I made an analysis but I cannot comment them.

2Contributor ILaplace Criterion: If the probabilities of several chance events are unknown, they should be assumed

equal, and the different actions should be judged according to their payoffs averaged over all the states

of nature. The question is what is the payoff?