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Visible to the public Enhanced Dooley Graphs for Modeling, Analyzing, and Attributing Ransomware Attack

Applying computation to cyber challenges requires a way to represent the attack so that a computer can reason about it. Ransomware attacks differ from many other cyber-attacks in the interaction between perpetrator and victim. It requires the victim to know that he is under attack, interact deliberately with the attacker, and collaborate to determine the outcome of the attack.

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Visible to the public Reinforcement Learning Algorithms for CPS: The Open-Source TEXPLORE Code Release for Reinforcement Learning on Robots

Abstract:

The use of robots in society could be expanded by using reinforcement learning (RL) to allow robots to learn and adapt to new situations on-line. RL is a paradigm for learning sequential decision making tasks, usually formulated as a Markov Decision Process (MDP). For an RL algorithm to be practical for robotic control tasks, it must learn in very few samples, while continually taking actions in real-time. In addition, the algorithm must learn efficiently in the face of noise, sensor/actuator delays, and continuous state features.

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Visible to the public Towards Secure Networked Cyber-Physical Systems: A Theoretic Framework with Bounded Rationality

Abstract:

Securing critical networked cyber-physical systems (NCPSs) such as the power grid or transportation systems has emerged as a major national and global priority. The networked nature of such systems renders them vulnerable to a range of attacks both in cyber and physical domains as corroborated by recent threats such as the Stuxnet virus.

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Visible to the public Cyber Infrastructure for Bridge Lifecycle Monitoring

Abstract:

The goal of this research project is to create a scalable and robust cyber-physical system (CPS) framework for the observation and control of the functional interdependencies between bridge structures (stationary physical systems) and trucks, vehicles and human inspectors (mobile physical agents). Figure 1 shows the SHM-based CPS framework that is built around demonstration highway bridges with permanent wireless bridge monitoring system installed.