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Auflistung nach Autor:in "Johnson, Matt"

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  • Konferenzbeitrag
    Network situational awareness: A representative study
    (Software Engineering 2009, 2009) Eskridge, Thomas; Lecoutre, David; Johnson, Matt; Bradshaw, Jeffrey M.
    Recent developments in visualization techniques for network monitoring and analysis have advanced dramatically over the simple topological graphs and color-coded textual representations found in early systems. These developments are employed in network visualization systems that attempt to present a complete and coherent view of the traffic on a network and the possible security events that may occur. In this paper we describe several representative integrated network visualization systems and discuss the network status and security questions they answer. We then describe an organizational approach to categorizing visualization systems and provide examples of each. We discuss the strengths and weaknesses of each approach and conclude with a proposal for two directions for next-generation systems.
  • Zeitschriftenartikel
    Sol: An Agent-Based Framework for Cyber Situation Awareness
    (KI - Künstliche Intelligenz: Vol. 26, No. 2, 2012) Bradshaw, Jeffrey M.; Carvalho, Marco; Bunch, Larry; Eskridge, Tom; Feltovich, Paul J.; Johnson, Matt; Kidwell, Dan
    In this article, we describe how we augment human perception and cognition through Sol, an agent-based framework for distributed sensemaking. We describe how our visualization approach, based on IHMC’s OZ flight display, has been leveraged and extended in our development of the Flow Capacitor, an analyst display for maintaining cyber situation awareness, and in the Parallel Coordinates 3D Observatory (PC3O or Observatory), a generalization of the Flow Capacitor that provides capabilities for developing and exploring lines of inquiry. We then introduce the primary implementation frameworks that provide the core capabilities of Sol: the Luna Software Agent Framework, the VIA Cross-Layer Communications Substrate, and the KAoS Policy Services Framework. We show how policy-governed agents can perform much of the tedious high-tempo tasks of analysts and facilitate collaboration. Much of the power of Sol lies in the concept of coactive emergence, whereby a comprehension of complex situations is achieved through the collaboration of analysts and agents working together in tandem. Not only can the approach embodied in Sol lead to a qualitative improvement in cyber situation awareness, but its approach is equally relevant to applications of distributed sensemaking for other kinds of complex high-tempo tasks.