Confidence and Conflict in Multivariate Calibration
研究了多元校准中基于似然和贝叶斯的置信区域与无条件抽样方法的不同,并引入不一致性诊断指标来识别有问题的响应向量。
SUMMARY Multivariate calibration involves using an estimated relationship between a multivariate response Y and an explanatory vector X to predict unknown X in future from further observed responses. In controlled calibration with multivariate normal errors, the profile likelihood function for the unknown X (denoted ξ) displays a term which measures the mutual inconsistency of the given response vector (denoted Z) in predicting ξ. This inconsistency diagnostic fundamentally differentiates the behaviour of likelihood based and Bayes “confidence” regions from those of the unconditional sampling approach. In addition the diagnostic serves to pinpoint an inadequate response vector Z.