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In this paper a chaotic frequency hopping sequences generator based on dynamic quantification is proposed to address the problem of phase space reconstruction attack. This method is based on twice divisions of dynamic system interval and rotated gear dynamic quantification. Analyzed by computer simulation and statistical methods, the paper compared the(More)
This paper proposed a chaotic image scrambling scheme based on sorting transformation. The algorithm calculates the permuting address codes by sorting the chaotic sequence. Therefore, the scheme does not require knowing the probability density function of the chaotic orbits in advance, thus not only facilitating the choice of chaotic systems but also(More)
We present an automated system for the diagnosis of both known and unknown soft-failures in end-user devices (UDs). Known faults that cause network performance degradation are used to train the classifier-based system in a supervised manner while unknown faults are automatically detected and clustered to identify the existence of new categories of(More)
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