Matches in SemOpenAlex for { <https://semopenalex.org/work/W4221142070> ?p ?o ?g. }
Showing items 1 to 57 of
57
with 100 items per page.
- W4221142070 abstract "A Bayesian multivariate model with a structured covariance matrix for multi-way nested data is proposed. This flexible modeling framework allows for positive and for negative associations among clustered observations, and generalizes the well-known dependence structure implied by random effects. A conjugate shifted-inverse gamma prior is proposed for the covariance parameters which ensures that the covariance matrix remains positive definite under posterior analysis. A numerically efficient Gibbs sampling procedure is defined for balanced nested designs, and is validated using two simulation studies. For a top-layer unbalanced nested design, the procedure requires an additional data augmentation step. The proposed data augmentation procedure facilitates sampling latent variables from (truncated) univariate normal distributions, and avoids numerical computation of the inverse of the structured covariance matrix. The Bayesian multivariate (linear transformation) model is applied to two-way nested interval-censored event times to analyze differences in adverse events between three groups of patients, who were randomly allocated to treatment with different stents (BIO-RESORT). The parameters of the structured covariance matrix represent unobserved heterogeneity in treatment effects and are examined to detect differential treatment effects." @default.
- W4221142070 created "2022-04-03" @default.
- W4221142070 creator A5003550171 @default.
- W4221142070 creator A5011768485 @default.
- W4221142070 creator A5021871249 @default.
- W4221142070 date "2022-01-25" @default.
- W4221142070 modified "2023-10-16" @default.
- W4221142070 title "Bayesian Covariance Structure Modeling of Multi-Way Nested Data" @default.
- W4221142070 doi "https://doi.org/10.48550/arxiv.2201.10612" @default.
- W4221142070 hasPublicationYear "2022" @default.
- W4221142070 type Work @default.
- W4221142070 citedByCount "0" @default.
- W4221142070 crossrefType "posted-content" @default.
- W4221142070 hasAuthorship W4221142070A5003550171 @default.
- W4221142070 hasAuthorship W4221142070A5011768485 @default.
- W4221142070 hasAuthorship W4221142070A5021871249 @default.
- W4221142070 hasBestOaLocation W42211420701 @default.
- W4221142070 hasConcept C105795698 @default.
- W4221142070 hasConcept C107673813 @default.
- W4221142070 hasConcept C11413529 @default.
- W4221142070 hasConcept C158424031 @default.
- W4221142070 hasConcept C161584116 @default.
- W4221142070 hasConcept C177384507 @default.
- W4221142070 hasConcept C178650346 @default.
- W4221142070 hasConcept C185142706 @default.
- W4221142070 hasConcept C199163554 @default.
- W4221142070 hasConcept C28826006 @default.
- W4221142070 hasConcept C33923547 @default.
- W4221142070 hasConcept C41008148 @default.
- W4221142070 hasConceptScore W4221142070C105795698 @default.
- W4221142070 hasConceptScore W4221142070C107673813 @default.
- W4221142070 hasConceptScore W4221142070C11413529 @default.
- W4221142070 hasConceptScore W4221142070C158424031 @default.
- W4221142070 hasConceptScore W4221142070C161584116 @default.
- W4221142070 hasConceptScore W4221142070C177384507 @default.
- W4221142070 hasConceptScore W4221142070C178650346 @default.
- W4221142070 hasConceptScore W4221142070C185142706 @default.
- W4221142070 hasConceptScore W4221142070C199163554 @default.
- W4221142070 hasConceptScore W4221142070C28826006 @default.
- W4221142070 hasConceptScore W4221142070C33923547 @default.
- W4221142070 hasConceptScore W4221142070C41008148 @default.
- W4221142070 hasLocation W42211420701 @default.
- W4221142070 hasOpenAccess W4221142070 @default.
- W4221142070 hasPrimaryLocation W42211420701 @default.
- W4221142070 hasRelatedWork W1725020537 @default.
- W4221142070 hasRelatedWork W2007006185 @default.
- W4221142070 hasRelatedWork W2018905710 @default.
- W4221142070 hasRelatedWork W2019694313 @default.
- W4221142070 hasRelatedWork W2032235606 @default.
- W4221142070 hasRelatedWork W2099921618 @default.
- W4221142070 hasRelatedWork W2114467513 @default.
- W4221142070 hasRelatedWork W3123229529 @default.
- W4221142070 hasRelatedWork W39761187 @default.
- W4221142070 hasRelatedWork W4284884718 @default.
- W4221142070 isParatext "false" @default.
- W4221142070 isRetracted "false" @default.
- W4221142070 workType "article" @default.