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arXiv 2107.04542math.STstat.MEstat.TH
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高阶不精确概率与统计检验

Higher Order Imprecise Probabilities and Statistical Testing

Justus Hibshman, Tim Weninger

摘要:

我们推广标准的信用集模型的不精确概率,包括高阶信用集-置信度的信心。在这样做时,我们指定如何观察事件时,代理的高阶置信度(credal集)更新。我们的模型开始用不精确的概率模型来解决标准问题,比如扩张和信念惯性。我们推测,当高阶置信集包含所有可能的概率函数时,则在极限情况下,最高阶置信度收敛以在一阶置信集上形成均匀分布,其中我们根据统计距离度量(全变差距离)定义均匀性。有限模拟支持的猜想。我们进一步建议,这种收敛呈现的总变差均匀分布作为一个自然的,特权的统计假设检验的先验。

英文摘要:

We generalize standard credal set models for imprecise probabilities to include higher order credal sets -- confidences about confidences. In doing so, we specify how an agent's higher order confidences (credal sets) update upon observing an event. Our model begins to address standard issues with imprecise probability models, like Dilation and Belief Inertia. We conjecture that when higher order credal sets contain all possible probability functions, then in the limiting case the highest order confidences converge to form a uniform distribution over the first order credal set, where we define uniformity in terms of the statistical distance metric (total variation distance). Finite simulation supports the conjecture. We further suggest that this convergence presents the total-variation-uniform distribution as a natural, privileged prior for statistical hypothesis testing.

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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