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A new look at fiducial inference

Published: April 27, 2025 | arXiv ID: 2504.19172v2

By: Pier Giovanni Bissiri, Chris Holmes, Stephen Walker

Potential Business Impact:

Makes statistics more reliable for predictions.

Business Areas:
Predictive Analytics Artificial Intelligence, Data and Analytics, Software

Since the idea of fiducial inference was put forward by Fisher, researchers have been attempting to place it within a rigorous and well motivated framework. It is fair to say that a general definition has remained elusive. In this paper we start with a representation of Bayesian posterior distributions provided by Doob that relies on martingales. This is explicit in defining how a true parameter value should depend on a random sample and hence an approach to "inverse probability" as originally conceived by Fisher. Taking this as our cue, we introduce a definition of fiducial inference that can be regarded as general.

Country of Origin
🇺🇸 🇬🇧 🇮🇹 Italy, United Kingdom, United States

Page Count
24 pages

Category
Statistics:
Methodology