Markov chain Monte Carlo for dynamic generalised linear models

• 成果类型: Article
• 署名作者: Gamerman, D
• 署名单位: Universidade Federal do Rio de Janeiro
• 刊物名称: BIOMETRIKA
• ISSN/ISSBN: 0006-3444
• DOI: 10.1093/biomet/85.1.215
• 发表日期: 1998
• 页码: 215227
• 关键词: gaussian state-space; time-series; GIBBS SAMPLER; distributions

摘要

This paper presents a new methodological approach for carrying out Bayesian inference about dynamic models for exponential-family observations. The approach is; simulation-based and involves the use of Markov chain Monte Carlo techniques. A Metropolis-Hastings algorithm is combined with the Gibbs sampler in repeated use of an adjusted version of normal dynamic linear models. Different alternative schemes based on sampling from the system disturbances and state parameters separately and in a block are derived and compared. The approach is fully Bayesian in obtaining posterior samples with state parameters and unknown hyperparameters. Illustrations with real datasets with sparse counts and missing values are presented. Extensions to accommodate more general evolution forms and distributions for observations and disturbances are outlined.