Generalised Bayes Linear Inference

Fuente: arXiv
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Main Authors: Astfalck, Lachlan, Bird, Cassandra, Williamson, Daniel
Format: Preprint
Published: 2024
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author Astfalck, Lachlan
Bird, Cassandra
Williamson, Daniel
author_facet Astfalck, Lachlan
Bird, Cassandra
Williamson, Daniel
contents Motivated by big data and the vast parameter spaces in modern machine learning models, optimisation approaches to Bayesian inference have seen a surge in popularity in recent years. In this paper, we address the connection between the popular new methods termed generalised Bayesian inference and Bayes linear methods. We propose a further generalisation to Bayesian inference that unifies these and other recent approaches by considering the Bayesian inference problem as one of finding the closest point in a particular solution space to a data generating process, where these notions differ depending on user-specified geometries and foundational belief systems. Motivated by this framework, we propose a generalisation to Bayes linear approaches that enables fast and principled inferences that obey the coherence requirements implied by domain restrictions on random quantities. We demonstrate the efficacy of generalised Bayes linear inference on a number of examples, including monotonic regression and inference for spatial counts. This paper is accompanied by an R package available at github.com/astfalckl/bayeslinear.
format Preprint
id arxiv_https___arxiv_org_abs_2405_14145
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Generalised Bayes Linear Inference
Astfalck, Lachlan
Bird, Cassandra
Williamson, Daniel
Methodology
Statistics Theory
Motivated by big data and the vast parameter spaces in modern machine learning models, optimisation approaches to Bayesian inference have seen a surge in popularity in recent years. In this paper, we address the connection between the popular new methods termed generalised Bayesian inference and Bayes linear methods. We propose a further generalisation to Bayesian inference that unifies these and other recent approaches by considering the Bayesian inference problem as one of finding the closest point in a particular solution space to a data generating process, where these notions differ depending on user-specified geometries and foundational belief systems. Motivated by this framework, we propose a generalisation to Bayes linear approaches that enables fast and principled inferences that obey the coherence requirements implied by domain restrictions on random quantities. We demonstrate the efficacy of generalised Bayes linear inference on a number of examples, including monotonic regression and inference for spatial counts. This paper is accompanied by an R package available at github.com/astfalckl/bayeslinear.
title Generalised Bayes Linear Inference
topic Methodology
Statistics Theory
url https://arxiv.org/abs/2405.14145