# A Cross Validation Framework for Signal Denoising with Applications to Trend Filtering, Dyadic CART and Beyond

@inproceedings{Chaudhuri2022ACV, title={A Cross Validation Framework for Signal Denoising with Applications to Trend Filtering, Dyadic CART and Beyond}, author={Anamitra Chaudhuri and Sabyasachi Chatterjee}, year={2022} }

This paper formulates a general cross validation framework for signal denoising. The general framework is then applied to nonparametric regression methods such as Trend Filtering and Dyadic CART. The resulting cross validated versions are then shown to attain nearly the same rates of convergence as are known for the optimally tuned analogues. There did not exist any previous theoretical analyses of cross validated versions of Trend Filtering or Dyadic CART. To illustrate the generality of the…

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