Thesiss

To secure today's computer systems, it is critical to have different intrusion detection sensors embedded in them. The complexity of distributed computer systems makes it difficult to determine the appropriate choice and placement of these detectors because there are many possib…

Part I Ranking data, which result from m raters ranking n items, are difficult to visualize due to their discrete algebraic structure, and the computational difficulties associated with them when n is large. This problem becomes worse when raters provide tied rankings or not all…

Kernel audit logs are a rich source of information containing the history of causal dependencies and information flows among system entities in a host system. The mainstream use of kernel audit logs is for forensic tasks to investigate cyberattacks retrospectively. In this disse…

Numerous studies indicate that amongst the various types of security threats, the problem of insider misuse of IT systems can have serious consequences for the health of computing infrastructures. Although incidents of external origin are also dangerous, the insider IT misuse pr…