About the formula in the appendix

[Suimingzhe]

Hi,
I would like to consult you about the formula in A.2.Derivation in the paper. For "which is a differential of log-SNR(t) regarding time-step t", the differential of log-SNR(t) should be SNR(t)'/SNR(t)，not -SNR(t)/SNR(t)'

If I misunderstood, please reply me as soon as possible, thank you very much

[jychoi118]

As written in eq.7 of section 2.2 Training Objectives, the weight lambda_t is minus reciprocal of the differential of log-SNR(t).

And yes, the differential of log-SNR(t) is SNR(t)'/SNR(t).

[Suimingzhe]

Thanks for your replying.