act. A physics correspondence for such a situation might be where two kinds of ray lights are coming to a given (learning!) polarizer in the condition that the $ \alpha $ portion of rays is already polarized in the same direction of the polarizer. In our invasion example, one can add some portion ($ \alpha $) of fully observability to the problem. It means that the defender can see an $ \alpha $ portion of its percepts directly coming from the attacker and $ 1 - \alpha $ portion come indirectly from the interpreter. As a tangible example of the situation, one can suppose that the attacker’s signs are being sent in two different colors from which one of these colors are invisible for a given defender.

![image](alphainter){width="75.00000%"}

It follows that, Figs. \[gasbulbdata\] and \[gasbu\] are specific examples of the current scenario with the observability parameter of $ \alpha =0 $. A comparison between the effect of the defender’s forgetting factor ($ \gamma_{D}$) and the interpreter’s forgetting factor ($ \gamma_{D}$) is illustrated in Fig. \[pilot1\], that is, the former (Gamma D) is dominated the later (Gamma I) in the amount of efficiency. Moreover, the effect of the reduction of observability 