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The study on streaming data is one of the hot topics among the database field recently. Unlike traditional data sets, stream data arrive continuously and they are fast changing, massive, possibly unpredictable. These characteristics of data stream determine that only approximate queries on them are proper. The key of approximate query is to construct a synopsis data structure far smaller than the...
Congestion is a natural phenomenon in core network, and is unavoidable if the queuing system is operated near capacity. Providing fairness among users with different levels of aggressiveness, and different levels of responsiveness is necessary for efficient network flow control. The scalability of current solutions depends on the number of active flows and the number of flows whose rate is greater...
A new kernel based on the KCS (kernels with compact support) kernel family is proposed. The training time of the support vector machines of the new kernel is shorter than that of the common kernels. The support vector rate of the classifying machines also keeps in a low level. Compared with other classifying kernels, a great deal of experimental results indicates that the new kernel has a better classifying...
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