The increase in scale of cyber networks and the rise sophistication cyber-attacks have introduced several challenges intrusion detection. primary challenge is requirement to detect complex multi-stage attacks realtime by processing immense amount traffic produced present-day networks. In this paper we present PRISM, a hierarchical detection architecture that uses novel attacker behavior model-b...

The task of comparing the capabilities computing systems with each other and forming various ratings has many possible goals. Here, there is identification trends, promotion proven general-purpose architectures, demonstration superiority in a certain class tasks, etc. It is, course, not enough to describe achieved performance for all these purposes, rankings comparisons use different levels abs...

We present a two-level hierarchical routing architecture for ad hoc networks. Within each lower level cluster, we describe a self-organizing, dynamic spine structure to (a) propagate topology changes, (b) compute updated routes in the background, and (c) provide backup routes in case of transient failures of the primary routes. We analyze and bound the worst case of movements between upper leve...