Abstract
In this paper, we developed a multi-agent model in order to describe trail-laying behaviors of ants. Agents in our model don't non-linearly response to chemical pheromones directly. Rather, they change their detection regions depending on the differences between right and left pheromone concentrations (|R-L|) when total amount of pheromone concentrations (R+L) beyond threshold values. If these values (R+L) are under threshold values, agents react to moving-directions of others locally detected by them instead of reacting to chemical pheromones. This switching model (reacting to either moving directions of others or chemical pheromones) appears to show non-deviated responses compared with following proposed model. In order to maintain the balances between exploration and exploitation, here we show that agents must produce deviations regarding to directions i.e. detection regions based on the relationship between moving directions of others and chemical pheromones.
