English

An Analytical Formula for Spectrum Reconstruction

Probability 2020-06-02 v1 Machine Learning

Abstract

We study the spectrum reconstruction technique. As is known to all, eigenvalues play an important role in many research fields and are foundation to many practical techniques such like PCA(Principal Component Analysis). We believe that related algorithms should perform better with more accurate spectrum estimation. There was an approximation formula proposed, however, they didn't give any proof. In our research, we show why the formula works. And when both number of features and dimension of space go to infinity, we find the order of error for the approximation formula, which is related to a constant cc-the ratio of dimension of space and number of features.

Keywords

Cite

@article{arxiv.2006.00152,
  title  = {An Analytical Formula for Spectrum Reconstruction},
  author = {Zhibo Dai and Heinrich Matzinger and Ionel Popescu},
  journal= {arXiv preprint arXiv:2006.00152},
  year   = {2020}
}
R2 v1 2026-06-23T15:55:27.704Z