Given a fixed network that links various actors, we introduce a formal model that describes the structural stability of coalitions. To this end, we used the partition of the set of all actors in three distinct positions: members, i.e., those who are central to a coalition; participants, i.e.,...

Information on ecological qualities can play an important role in land-use planning. This information is not always in a form that is suitable to support planning and negotiation among stakeholders. In this paper we describe an approach that uses ecological information based on expert knowledge...