Frobenius norm Rademacher calculation
= Frobenius norm Rademacher calculation
{c}
Independent signs cancel cross terms in $\mathbb E\lVert\sum_i\sigma_iA_i\rVert_F^2$, leaving $\sum_i\lVert A_i\rVert_F^2$.
= Frobenius norm Rademacher calculation
{c}
Independent signs cancel cross terms in $\mathbb E\lVert\sum_i\sigma_iA_i\rVert_F^2$, leaving $\sum_i\lVert A_i\rVert_F^2$.