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5月
多元t分布下非相关观测数据的协方差矩阵似然比检验研究及其应用
这篇研究聚焦于多元t分布(multivariate t distribution)框架下协方差矩阵的假设检验问题,创新性地提出基于两类矩阵变量t分布(type I/II)的似然比检验(LRT)方法,解决了非独立观测数据的协方差结构分析难题。作者系统推导了参数估计量(MLE)的统计性质(如 ...
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