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While intrusion detection systems are becoming ubiquitous defenses in today's networks, currently we have no comprehensive and scientifically rigorous methodology to test the effectiveness of these systems. This paper explores the types of performa nce measurements that are desired and that have been used in the past. We review many past evaluations that(More)
Self-mutilators' psychophysiological and subjective responses during an imaged self-mutilative act were examined. Differences in arousal to 3 imaged control events (neutral, accidental injury, and aggression) were examined between 3 self-mutilation groups (prisoner, prisoner control, and nonprison control). Imagery scripts were presented in 4 stages; scene(More)
People who self-mutilate have been hypothesized to have deficient skills in coping and problem-solving that leave them vulnerable to the adoption of self-mutilation as a coping strategy. This hypothesis was tested using male incarcerated self-mutilators with comparisons being made with non-multilating, prisoner, and non-prisoner control groups. Examination(More)
A simple and portable ultrasound system, using a transducer attached to a pair of spectacles, to measure disorders of facial movement is described and applied to the measurement of tardive dyskinesia. Product-moment coefficients of correlation for the split-half and test-retest assessments of reliability in 20 patients were 0.96 and 0.93 respectively.(More)
OBJECTIVE To investigate the symptomatology of severe psychopathology reported by male incarcerated self-multilators. METHOD Comparisons were made with a nonmutilating incarcerated group and a nonincarcerated, nonmutilator group. RESULTS A distinctive pattern of symptomatology emerged. Self-mutilators evidenced a wide range of elevated scores on general(More)
An important goal of the 1999 DARPA Intrusion Detection Evaluation was to promote the development of intrusion detection systems that can detect new attacks. This thesis describes UNIX attacks developed for the 1999 DARPA Evaluation. Some attacks were new in 1999 and others were stealthy versions of 1998 User-to-Root attacks designed to evade network-based(More)
OBJECTIVE To investigate the psychophysiological pattern associated with severe and mild onychophagia, and to compare this pattern with that demonstrated by previous research on self-cutting. METHOD Comparisons between the psychophysiological responses accompanying 3 behaviours were made using a guided imagery methodology. Imagery of nail-related,(More)
OBJECTIVES The aim of this review is to make a distinction between a mild and a severe form of onychophagia (nailbiting) that has not been adequately recognised in clinical research. Furthermore, the aim is to emphasise the need for greater understanding of the motivation for such self-injury as occurs in the severe form. The purpose of making the(More)
Embedded parallel and distributed computing systems for real-time applications are becoming commonplace. Many such real-time applications are life-critical and require extensive fault-tolerance capabilities in order to ensure very high reliability. At the same time, cost, power, weight, and volume constraints require that any introduced redundancy must be(More)
The Transformational Satellite Communications System (TSAT) is poised to become the DoD's next generation protected and processed satellite system. This paper describes the network architecture of the TSAT system. The presence of a high capacity IP router on the satellite pay-load is a key distinguishing feature of the TSAT system. The TSAT payload also(More)