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The Projected Covariance Measure for assumption-lean variable significance testing. (arXiv:2211.02039v1 [math.ST])
Nov. 4, 2022, 1:13 a.m. | Anton Rask Lundborg, Ilmun Kim, Rajen D. Shah, Richard J. Samworth
stat.ML updates on arXiv.org arxiv.org
Testing the significance of a variable or group of variables $X$ for
predicting a response $Y$, given additional covariates $Z$, is a ubiquitous
task in statistics. A simple but common approach is to specify a linear model,
and then test whether the regression coefficient for $X$ is non-zero. However,
when the model is misspecified, the test may have poor power, for example when
$X$ is involved in complex interactions, or lead to many false rejections. In
this work we study …
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