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Largest Eigenvalues of the Conjugate Kernel of Single-Layered Neural Networks. (arXiv:2201.04753v1 [math.PR])
Jan. 14, 2022, 2:10 a.m. | Lucas Benigni, Sandrine Péché
cs.LG updates on arXiv.org arxiv.org
This paper is concerned with the asymptotic distribution of the largest
eigenvalues for some nonlinear random matrix ensemble stemming from the study
of neural networks. More precisely we consider $M= \frac{1}{m} YY^\top$ with
$Y=f(WX)$ where $W$ and $X$ are random rectangular matrices with i.i.d.
centered entries. This models the data covariance matrix or the Conjugate
Kernel of a single layered random Feed-Forward Neural Network. The function $f$
is applied entrywise and can be seen as the activation function of the …
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