Effective Bayesian inference for sparse factor analysis models

KJ Sharp - 2011 - search.proquest.com
We study how to perform effective Bayesian inference in high-dimensional sparse Factor
Analysis models with a zero-norm, sparsity-inducing prior on the model parameters. Such …

Sparse Bayesian factor analysis when the number of factors is unknown

S Frühwirth-Schnatter, D Hosszejni… - Bayesian Analysis, 2024 - projecteuclid.org
There has been increased research interest in the subfield of sparse Bayesian factor
analysis with shrinkage priors, which achieve additional sparsity beyond the natural …

[PDF][PDF] A Comparison of Bayesian Inference Techniques for Sparse Factor Models

YS Foo - 2020 - vrs.amsi.org.au
Dimension reduction algorithms aim to discover latent variables which describe underlying
structures in high-dimensional data. Traditional methods such as principal component …

A Bayesian sparse factor model with adaptive posterior concentration

I Ohn, L Lin, Y Kim - Bayesian Analysis, 2023 - projecteuclid.org
In this paper, we propose a new Bayesian inference method for a highdimensional sparse
factor model that allows both the factor dimensionality and the sparse structure of the …

[PDF][PDF] A Comparison of Inference Methods for Sparse Factor Analysis Models

O Stegle, K Sharp, M Rattray, J Winn - Citeseer
Factor analysis is a general purpose technique for dimensionality reduction with
applications in diverse areas including computer vision, collaborative filtering and …

A Novel Identification Approach to Bayesian Factor Analysis with Sparse Loadings Matrices

M Pape - Available at SSRN 2399368, 2014 - papers.ssrn.com
Sparse factor analysis comprises aspects of exploratory and confirmatory factor analysis,
seeking to establish a parsimonious structure in the loadings matrix of the model. This task is …

Sparse Bayesian infinite factor models

A Bhattacharya, DB Dunson - Biometrika, 2011 - academic.oup.com
We focus on sparse modelling of high-dimensional covariance matrices using Bayesian
latent factor models. We propose a multiplicative gamma process shrinkage prior on the …

Posterior consistency of factor dimensionality in high-dimensional sparse factor models

I Ohn, Y Kim - Bayesian Analysis, 2022 - projecteuclid.org
Factor models aim to describe a dependence structure among high-dimensional random
variables in terms of a low-dimensional unobserved random vector called a factor. One of …

[PDF][PDF] Bayesian factor regression models in the “large p, small n” paradigm

JM Bernardo, MJ Bayarri, JO Berger, AP Dawid… - Bayesian …, 2003 - stat.duke.edu
SUMMARY I discuss Bayesian factor regression models with many explanatory variables.
These models are of particular interest and applicability in problems of prediction, but also …

Sparse factor model via regularization and its extension to regression analysis

K Hirose - Proceedings of the annual meeting of Japanese …, 2016 - jstage.jst.go.jp
Factor analysis is used to explore the covariance structure among a set of observed random
variables. The technique constructs a reduced number of random variables called common …