Comment on 'Supervised quantum machine learning models are kernel methods'

Abstract:We identify a few small errors in the proof of Theorem 1 in M. Schuld, 'Supervised quantum machine learning models are kernel methods' (arXiv:2101.11020v2), Appendix A. These do not affect the validity of the theorem, but do matter if one wants to use the appendix to explicitly compute the Fourier coefficients of a quantum kernel. We give the corrected derivation, and additionally show that the paper's worked cosine-kernel example contains a second, unrelated error that happens to cancel the first, thereby coincidentally yielding the correct result.

Comment on arXiv:2101.11020v2

arXiv:2608.24923 [quant-ph]

(or arXiv:2608.24923v1 [quant-ph] for this version)

https://doi.org/10.48550/arXiv.2608.24923 Focus to learn more arXiv-issued DOI via DataCite

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