Brett Wilson

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1 Intrusion detection in MANETs is challenging because these networks change their topologies dynamically; lack concentration points where aggregated traffic can be analyzed; utilize infrastructure protocols that are susceptible to manipulation; and rely on noisy, intermittent wireless communications. We present a cooperative, distributed intrusion(More)
Configuring a security experiment can be tedious, involving many low level and repetitive configuration tasks. In order to make DETER's capabilites accessible to users at all skill levels, we have designed and implemented a Security Experimentation EnviRonment (SEER) that provides security researchers the ability to create, plan, and iterate through a large(More)
This paper presents two new hardware-assisted rendering techniques developed for interactive visualization of the terascale data generated from numerical modeling of next-generation accelerator designs. The first technique, based on a hybrid rendering approach, makes possible interactive exploration of large-scale particle data from particle beam dynamics(More)
We present a method to aid in the generation of pen-and-ink style renderings of complex geometry. Most illustration algorithms focus on rendering a small number of surfaces with as much detail and expression as possible. These methods break down when the scene is composed of many small, overlapping details that are not individually resolvable. We propose a(More)
This paper is concerned with simultaneous visualization of two or more volumes, which may be from different imaging modalities or numerical simulations for the same subject of study. The main visualization challenge is to establish visual correspondences while maintaining distinctions among multiple volumes. One solution is to use different rendering styles(More)
The scientific simulation and three-dimensional imaging systems in use today are producing large quantities of data that range from gigabytes to petabytes in size. Direct volume rendering, using hardware-based three-dimensional textures, is a common technique for interactively exploring these data sets. The most serious drawback of this approach is the(More)
Infant rats treated with basic fibroblast growth factor-2 (FGF-2) after postnatal day (P)10 motor cortical injury, show functional improvement in adulthood relative to those that do not receive FGF-2. In this study we used a combination of behavioural, immunohistochemical, electrophysiological, electron microscopic and teratological approaches to(More)
To date, the measurement of user-perceived degradation of quality of service during denial of service (DoS) attacks remained an elusive goal. Current approaches mostly rely on lower level traffic measurements such as throughput, utilization, loss rate, and latency. They fail to monitor all traffic parameters that signal service degradation for diverse(More)