Social networks are an important infrastructure for information, viruses and innovations propagation. Since users' behavior has influenced by other users' activity, some groups of people would be made regard to similarity of users' interests. On the other hand, dealing with many events in real worlds, can be justified in social networks; spreading disease… (More)
In this paper we propose a new method to help managing and supervising security in large networks. We use Fuzzy Description Logics (FDL) to model a composite Intrusion Detection system (CIDS). We show that this hybrid method is more efficient than crisp ones in complex environments.