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Full-Text Articles in Physical Sciences and Mathematics
Graph-Theoretic Approach To Modeling Propagation And Control Of Network Worms, Zoran Nikoloski
Graph-Theoretic Approach To Modeling Propagation And Control Of Network Worms, Zoran Nikoloski
Electronic Theses and Dissertations
In today's network-dependent society, cyber attacks with network worms have become the predominant threat to confidentiality, integrity, and availability of network computing resources. Despite ongoing research efforts, there is still no comprehensive network-security solution aimed at controling large-scale worm propagation. The aim of this work is fivefold: (1) Developing an accurate combinatorial model of worm propagation that can facilitate the analysis of worm control strategies, (2) Building an accurate epidemiological model for the propagation of a worm employing local strategies, (3) Devising distributed architecture and algorithms for detection of worm scanning activities, (4) Designing effective control strategies against the worm, …
Coordinated Teams Of Reactive Mobile Platforms, J. Sweeney
Coordinated Teams Of Reactive Mobile Platforms, J. Sweeney
Computer Science Department Faculty Publication Series
This paper presents techniques for exploiting redundancy in teams of mobile robots. In particular, we address tasks involving the kinematic coordination of several commu- nicating robots. Teams are modeled as highly redundant spatial mechanisms for which multi-objective, concurrent controllers are constructed using a generalization of null- space control. The goal is to develop a methodology in which the robustness and error suppression in a control theoretic substrate can be used to preserve critical prop- erties in teams of reactive robots. The resulting “safe” control options can then be explored while guarantee- ing global compliance with system specifications. The proposed architecture …