Search Results - "Browne, Ryan"
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1
Widening the Circle: Prison Arts Performances as Gifts
Published in Journal of community engagement and scholarship (01-08-2022)“…After outlining the major benefits — and problems — of both in-class and public prison arts performances, and presenting an explication of gifts found in Lewis…”
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A mixture of generalized hyperbolic distributions
Published in Canadian journal of statistics (01-06-2015)“…We introduce a mixture of generalized hyperbolic distributions as an alternative to the ubiquitous mixture of Gaussian distributions as well as their near…”
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3
Generalized linear models for massive data via doubly-sketching
Published in Statistics and computing (01-10-2023)“…Generalized linear models are a popular analytics tool with interpretable results and broad applicability, but require iterative estimation procedures that…”
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4
Mixtures of Shifted Asymmetric Laplace Distributions
Published in IEEE transactions on pattern analysis and machine intelligence (01-06-2014)Get full text
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5
Model-Based Clustering with Nested Gaussian Clusters
Published in Journal of classification (01-03-2024)“…A dataset may exhibit multiple class labels for each observation; sometimes, these class labels manifest in a hierarchical structure. A textbook analogy would…”
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Parsimony and parameter estimation for mixtures of multivariate leptokurtic-normal distributions
Published in Advances in data analysis and classification (2024)“…Mixtures of multivariate leptokurtic-normal distributions have been recently introduced in the clustering literature based on mixtures of elliptical…”
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Mixtures of multivariate power exponential distributions
Published in Biometrics (01-12-2015)“…An expanded family of mixtures of multivariate power exponential distributions is introduced. While fitting heavy‐tails and skewness have received much…”
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8
Chimeral Clustering
Published in Journal of classification (01-03-2022)“…Hybrid species tend to exhibit a mixture of parent characteristics; we propose chimeral clusters as exhibiting a mixture of parent parameters, a type of…”
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The orthogonal skew model: computationally efficient multivariate skew-normal and skew-t distributions with applications to model-based clustering
Published in Test (Madrid, Spain) (2024)“…We introduce a parameterization for the multivariate skew normal and skew- t distributions, which enforces an orthogonal structure on the skewness parameter…”
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10
Assessing the variability of posterior probabilities in Gaussian model-based clustering
Published in Communications in statistics. Simulation and computation (04-05-2023)“…We propose a variant of the bootstrap to assess the variability of posterior probabilities arising from Gaussian model-based clustering. The bootstrap variant…”
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Factor and hybrid components for model-based clustering
Published in Advances in data analysis and classification (2022)“…A major challenge when performing model-based clustering is a large increase in the number of free parameters as the data dimensionality increases. To combat…”
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12
Flexible mixture regression with the generalized hyperbolic distribution
Published in Advances in data analysis and classification (01-03-2024)“…When modeling the functional relationship between a response variable and covariates via linear regression, multiple relationships may be present depending on…”
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13
Anderson relaxation test for intrinsic dimension selection in model-based clustering
Published in Journal of statistical computation and simulation (02-11-2022)“…Parsimonious finite mixture models often require the a priori selection of desired model dimensionality. For example, projection-based parsimonious models…”
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14
A dual subspace parsimonious mixture of matrix normal distributions
Published in Advances in data analysis and classification (01-09-2023)“…We present a parsimonious dual-subspace clustering approach for a mixture of matrix-normal distributions. By assuming certain principal components of the row…”
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15
A Mixture of Coalesced Generalized Hyperbolic Distributions
Published in Journal of classification (01-04-2019)“…A mixture of multiple scaled generalized hyperbolic distributions (MMSGHDs) is introduced. Then, a coalesced generalized hyperbolic distribution (CGHD) is…”
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Intrinsic Capacity and Active and Healthy Aging Domains Supported by Personalized Digital Coaching: Survey Study Among Geriatricians in Europe and Japan on eHealth Opportunities for Older Adults
Published in Journal of medical Internet research (12-10-2023)“…The worldwide aging trend requires conceptually new prevention, care, and innovative living solutions to support human-based care using smart technology, and…”
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17
A mixture of generalized hyperbolic factor analyzers
Published in Advances in data analysis and classification (01-12-2016)“…The mixture of factor analyzers model, which has been used successfully for the model-based clustering of high-dimensional data, is extended to generalized…”
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18
Multivariate Response and Parsimony for Gaussian Cluster-Weighted Models
Published in Journal of classification (01-04-2017)“…A family of parsimonious Gaussian cluster-weighted models is presented. This family concerns a multivariate extension to cluster-weighted modelling that can…”
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Orthogonal Stiefel manifold optimization for eigen-decomposed covariance parameter estimation in mixture models
Published in Statistics and computing (01-03-2014)“…Within the mixture model-based clustering literature, parsimonious models with eigen-decomposed component covariance matrices have dominated for over a decade…”
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Hypothesis Testing for Mixture Model Selection
Published in Journal of statistical computation and simulation (21-09-2016)“…Gaussian mixture models with eigen-decomposed covariance structures, i.e. the Gaussian parsimonious clustering models (GPCM), make up the most popular family…”
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