2020
DOI: 10.48550/arxiv.2008.04522
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Bayesian Analysis on Limiting the Student-$t$ Linear Regression Model

Abstract: For the outlier problem in linear regression models, the Student-t linear regression model is one of the common methods for robust modeling and is widely adopted in the literature. However, most of them applies it without careful theoretical consideration. This study provides the practically useful and quite simple conditions to ensure that the Student-t linear regression model is robust against an outlier in the y-direction using regular variation theory.

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“…In the latter paper, it is noted that there exists a gap between the models formally covered by the theory of conflict resolution and models commonly used in practice. The latest developments focus on situations where the conflicting information is carried by outlying data points in location-scale models (Desgagné, 2015) and linear regression (Desgagné and Gagnon, 2019;Gagnon et al, 2020aGagnon et al, , 2021Hayashi, 2020). The present paper contributes to the expansion of the theory of conflict resolution by covering conflicting prior information in regression.…”
Section: Conflictsmentioning
confidence: 93%
“…In the latter paper, it is noted that there exists a gap between the models formally covered by the theory of conflict resolution and models commonly used in practice. The latest developments focus on situations where the conflicting information is carried by outlying data points in location-scale models (Desgagné, 2015) and linear regression (Desgagné and Gagnon, 2019;Gagnon et al, 2020aGagnon et al, , 2021Hayashi, 2020). The present paper contributes to the expansion of the theory of conflict resolution by covering conflicting prior information in regression.…”
Section: Conflictsmentioning
confidence: 93%