Where: 8 is congestion, and VZk (Yi) is the threshold
parameter of the center position Yi in the i -th artificial fish
sight; diy is the distance between the i -th artificial fish and
its central position Y in its sight.
Similarly, it can determine the learning methods of wkO '
Wkh and VIO•
c) Following behavior
If Zir = rjJ , it will execute foraging behavior.
If Zir -::j:. rjJ, assuming that g} is the largest of all partners
in the food concentration, which is in the sight of artificial fish gi ,and its value is h },max . If it satisfies (9), it shows that it is
not crowded and there is more food near g} , then the artificial
fish gi will execute (10), otherwise it will execute the foraging
behavior.