Results 21 to 30 of about 2,663,278 (338)

Non‐conjugate prior distribution assessment for multivariate normal sampling [PDF]

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 2001
Summary Elicitation methods are proposed for quantifying expert opinion about a multivariate normal sampling model. The natural conjugate prior family imposes a relationship between the mean vector and the covariance matrix that can portray an expert's opinion poorly.
P. Garthwaite, S. Al-Awadhi
semanticscholar   +3 more sources

Robust Poisson Multi-Bernoulli Mixture Filter With Inaccurate Process and Measurement Noise Covariances

open access: yesIEEE Access, 2020
This paper proposes a robust Poisson multi-Bernoulli mixture (PMBM) filter with inaccurate process and measurement noise covariances. A derivation of the robust PMBM filter is provided for jointly estimating the kinematic state, the predicted state ...
Wenjuan Li, Hong Gu, Weimin Su
doaj   +1 more source

Test-Time Adaptation via Conjugate Pseudo-labels [PDF]

open access: yesNeural Information Processing Systems, 2022
Test-time adaptation (TTA) refers to adapting neural networks to distribution shifts, with access to only the unlabeled test samples from the new domain at test-time.
Sachin Goyal   +3 more
semanticscholar   +1 more source

ANALISIS SURVIVAL UNTUK PARAMETER SKALA DARI DISTRIBUSI WEIBULL MENGGUNAKAN MLE DAN METODE BAYESIAN

open access: yesBarekeng, 2021
Modeling of survival data is necessary and important to do. Survival data is generally assumed to have a Weibull distribution. Bayesian approach has been implemented to estimate the parameter in such this survival analysis. This study purposes to compare
Ferra Yanuar   +2 more
doaj   +1 more source

A channel-based perspective on conjugate priors [PDF]

open access: yesMathematical Structures in Computer Science, 2020
AbstractA desired closure property in Bayesian probability is that an updated posterior distribution be in the same class of distributions – say Gaussians – as the prior distribution. When the updating takes place via a statistical model, one calls the class of prior distributions the ‘conjugate priors’ of the model.
openaire   +4 more sources

Conjugate priors and bias reduction for logistic regression models

open access: yesStatistics & Probability Letters, 2022
Logistic regression models for binomial responses are routinely used in statistical practice. However, the maximum likelihood estimate may not exist due to data separability. We address this issue by considering a conjugate prior penalty which always produces finite estimates.
Rigon T., Aliverti E.
openaire   +2 more sources

Conjugate Priors for Exponential Families

open access: yesThe Annals of Statistics, 1979
Let $X$ be a random vector distributed according to an exponential family with natural parameter $\theta \in \Theta$. We characterize conjugate prior measures on $\Theta$ through the property of linear posterior expectation of the mean parameter of $X : E\{E(X|\theta)|X = x\} = ax + b$.
Diaconis, Persi, Ylvisaker, Donald
openaire   +3 more sources

Vaccination in Kidney Transplant Candidates

open access: yesTransplantation Direct, 2023
Background:. Kidney transplant (KT) candidates have historically low immunization rates against recommended vaccines. A retrospective single-center study of contemporary KT candidates was conducted to assess vaccination rates and vaccine uptake. Methods:.
Kiran Gajurel, MD   +3 more
doaj   +1 more source

Approximating Priors by Mixtures of Natural Conjugate Priors

open access: yesJournal of the Royal Statistical Society Series B: Statistical Methodology, 1983
SUMMARY The purpose of this paper is twofold: First, to show that a natural enlargement of the class of natural conjugate priors–namely, mixtures of natural conjugate priors–also leads to mathematically tractable solutions. Secondly, to show that this enlargement is “adequate” in that any prior may be arbitrarily closely approximated by ...
Dalal, S. R., Hall, W. J.
openaire   +2 more sources

Mathematical modelling long-term effects of replacing Prevnar7 with Prevnar13 on invasive pneumococcal diseases in England and Wales. [PDF]

open access: yesPLoS ONE, 2012
England and Wales recently replaced the 7-valent pneumococcal conjugate vaccine (PCV7) with its 13-valent equivalent (PCV13), partly based on projections from mathematical models of the long-term impact of such a switch compared to ceasing pneumococcal ...
Yoon Hong Choi   +4 more
doaj   +1 more source

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