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arXiv 1102.5031math.STstat.TH
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二阶局部真值评分规则

Local proper scoring rules of order two

Werner Ehm, Tilmann Gneiting

摘要:

评分规则通过基于预测分布和实现的事件或值分配数值分数来评估概率预测的质量。如果评分规则鼓励真实的报告,那么它就是适当的。它是局部的顺序$k$,如果分数取决于预测密度仅通过其值和其导数的值的顺序高达$k$在实现事件。补充基本最近的工作帕里,Dawid和Lauritzen,我们的特点是当地适当的评分规则的顺序2相对于广泛的一类勒贝格密度的真正的线,使用不同的方法。在一个数据示例中,我们使用本地和非本地适当的评分规则来评估统计后处理的集合天气预报。

英文摘要:

Scoring rules assess the quality of probabilistic forecasts, by assigning a numerical score based on the predictive distribution and on the event or value that materializes. A scoring rule is proper if it encourages truthful reporting. It is local of order $k$ if the score depends on the predictive density only through its value and the values of its derivatives of order up to $k$ at the realizing event. Complementing fundamental recent work by Parry, Dawid and Lauritzen, we characterize the local proper scoring rules of order 2 relative to a broad class of Lebesgue densities on the real line, using a different approach. In a data example, we use local and nonlocal proper scoring rules to assess statistically postprocessed ensemble weather forecasts.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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