Theoretically, any previous cooperative framework may suffer from the above ill-defined problem, if the generator has the potential to accurately guess Y with sufficient capacity.
3 This problem happens because they have no control of the words unselected by R. Intuitively, in the presence of degeneration, some key predictors in X will be left unselected by R. by looking at the predictive power of R c , we can determine if degeneration occurs.