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Barrier coverage is attractive for many practical applications of wireless sensor networks. In stationary networks, if the number of deployed sensors is not large enough, the intruder may pass though the barrier gaps undetected. Recently, using mobile sensors to repair gaps and improve network barrier coverage performance has attracted much attention. We focus on constructing energy efficient strong...
In the field of speaker recognition, the Gaussian mixture model with diagonal covariance matrices is a popular technique, in this way, it simplified model and reduced the amount of computation, but lost the correlation information between feature vectors, and then influenced the classification performance. In this paper, in order to compensate the correlation between feature elements, we proposed...
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