On principal components regression with Hilbertian predictors
On principal components regression with Hilbertian predictors
复制标题
使用希尔伯特预测器进行主成分回归
DOI:
10.1007/s10463-018-0702-9
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发表时间:
2018
影响因子:
1
通讯作者:
Jones B
中科院分区:
文献类型:
--
作者:
Jones B
We demonstrate that, in a regression setting with a Hilbertian predictor, a response variable is more likely to be more highly correlated with the leading principal components of the predictor than with trailing ones. This is despite the extraction procedure being unsupervised. Our results are established under the conditional independence model, which includes linear regression and single-index models as special cases, with some assumptions on the regression vector. These results are a generalisation of earlier work which showed that this phenomenon holds for predictors which are real random vectors. A simulation study is used to quantify the phenomenon.
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