隐马尔可夫因子分析模型的半参数贝叶斯分析

被引:9
作者
夏业茂
勾建伟
刘应安
机构
[1] 南京林业大学理学院
关键词
隐马尔可夫模型; 因子分析模型; 半参数贝叶斯; 分块GIBBS抽样器;
D O I
10.13299/j.cnki.amjcu.001846
中图分类号
O212.8 [贝叶斯统计];
学科分类号
070103 [概率论与数理统计];
摘要
因子模型在刻画潜在因素(因子)与观测变量间的影响关系并进而解释多元观测指标(变量)间的相关性方面具有重要作用.在实际应用中,观测数据往往呈现出时序变异多峰,偏态等特性.将经典的因子分析延伸到带有时齐隐马尔可夫模型的动力因子模型,并建立了半参数贝叶斯分析程序.分块GIBBS抽样器用以后验抽样.经验结果展示所建立的统计程序是有效的.
引用
收藏
页码:17 / 30
页数:14
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