  We have already developed the recommendation system of sightseeing
information on SNS by using smartphone based user participatory sensing system.
The system can post the attractive information for tourists to the specified
Facebook page by our developed smartphone application. The users in Facebook,
who are interested in sightseeing, can come flocking through information space
from far and near. However, the activities in the community on SNS are only
supported by the specified people called a hub. We proposed the method of
vitalization of tourist behaviors to give a stimulus to the people. We
developed the simulation system for multi agent system with altruistic
behaviors inspired by the Army Ants. The army ant takes feeding action with
altruistic behaviors to suppress selfish behavior to a common object used by a
plurality of users in common. In this paper, we introduced the altruism
behavior determined by some simulation to vitalize the SNS community. The
efficiency of the revitalization process of the community was investigated by
some experimental simulation results.
