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Recently, Multicasting is increasingly used as an efficient communication mechanism in the internet. Secure group communication is vital for many group-based applications such as pay-per view. One solution is to let all members in the group share a group key that is used for encrypting the data. To ensure perfect backward and forward secrecy, this shared group key has to be updated with every membership...
Network Environment keeps stable usually, but under some extreme cases, the network environment changes regularly. The campus network located at classrooms is a typical case. The right of classroom internet access has been changed according to curriculum schedule. Thus, the network managers have to re-configure the network devices frequently for permitting or forbidding student computers access internet...
The traditional adaptive Random Early Detection (RED) algorithm allows network to achieve high throughput and low average delay. However it uses a linear dropping probability function, which causes high jitter in the core router. To overcome the drawbacks of queue jitter in the traditional adaptive RED algorithm, this paper proposes a new Non-Linear Adaptive RED (NLAR) approach based on the Active...
The complex network model is the research foundation of complex network, so it is important to evaluate and select model objectively .There is no effective evaluation way up to now. An evaluating method using cloud model is proposed to decrease randomness and fuzziness existing in conventional evaluation. The results of simulating experiments prove that such uncertainty is solved well.
PageRank algorithm is a famous algorithm to mine the Web structure, but it has a drawback of topic-drift. To eliminate the topic-drift of the PageRank algorithm, and after the analysis of existing algorithms, a new algorithm called TC-PageRank algorithm is put forward. The TC-PageRank algorithm is based on fictitious file vector and correlation measure of cosine. Experimental results illustrate that...
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