Proper scoring rule: Difference between revisions

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(Expansion of the formal definition.)
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A proper scoring rule is propera ifsubset theof expectedscoring scorerules iswhich maximized whenincentivize the forecaster reportsto report their true subjective probability distribution.
 
{{Wikipedia|Scoring_rule#StrictlyProperScoringRules}}
 
* Besiroglu, Tamay. ''[https://www.metaculus.com/questions/1505/why-it-is-rational-to-predict-according-to-your-true-beliefs/ Why it is rational to predict according to your true beliefs]''
 
For the binary case, suppose a forecaster believes the outcome will occur with probability <math>p</math> and reports belief <math>b</math>, which will be scored by the rule <math>f</math>. <math>f</math> is proper if <math>E[f(b, x)]</math> is maximized when <math>b = p</math>
[[Category:Proper scoring rules]]