discussions on adding noise

[jiweiqi]

CellBox.jl/spilt/network.jl

Line 62 in 47e8652

ode_data += randn(size(ode_data)) .* ode_data .* noise

Initially, I was thinking of adding relative noise, e.g., 1% of the signal. However, after realizing that the signal is in log-scale already, we shouldn't use "relative noise" here, instead, we should use

ode_data += randn(size(ode_data)) .* noise

BTW, adding noise is pretty useful to regularize the parameters.

[DesmondYuan]

Implemented at b3f0bc3