How to built my model into CVX, thanks

[Yang_Wang]

I always make mistakes when modeling with CVX. How to use CVX to model, thank you！

[Michal_Adamaszek]

Log(log(1+exp(x)) objective function

I wonder if there is any way to define Log(log(1+exp(x)) objective function for CVX, the function is concave but CVX does not accept it

This function and its variants have been asked for on various fora but no DCP-compliant representation so far has been found.