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Detecting anomalous Border Gateway Protocol (BGP) traffic is significantly important in improving both security and robustness of the Internet. Existing solutions apply classic classifiers to make real-time decision based on the traffic features of present moment. However, due to the frequently happening burst and noise in dynamic Internet traffic, the decision based on short-term features is not...
As metro systems have become more advanced, Communication-Based Train Control (CBTC) has been increasingly valued because of its characteristics. It is, however, necessary to guarantee that the CBTC system is safe so that the safety of the whole metro system can be improved. Traditional off-line testing methods are widely used to determine whether the CBTC system complies with the desired specification,...
This issues Measurements Corner article presents detailed descriptions of two novel geometric optics methods for the analysis and design of anechoic chambers. The advantages and limitations of each technique are compared and contrasted, and methods for their efficient implementation are discussed.
An efficient geometric optics (GO) method is successfully developed for the field uniformity (FU) analysis and converted to an in-house computer-aided design (CAD) software tool for anechoic chamber design. It can help anechoic chamber companies to select the right radio absorbing materials for a chamber to meet the desired specs. Simulation and measurement results are obtained and compared, and good...
The traditional virtual biological behavior animation is realized by the key frame technology, but there are some deficiencies. Therefore, we propose the modeling of fish roe Based on artificial life method to animation fish roe using artificial life method and virtual reality technologies. It can animated the fish roe division without any of the key frames, not only has the basic characteristics...
Rate control plays an important role in regulating the encoding bit rate to meet the bandwidth and storage requirement. Most existing works regulate the bit rate by adjusting the quantization step size. We propose to incorporate a new dimension: the quantization rounding offset into a rate control algorithm. Based on our previous work of multi-pass fine rate control, in this work, we present a unified...
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