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The characteristics of data stream are infinite data and quick stream speed. Clustering modeling is an important method which link to the effect of clustering technology. A nice modeling method impacts on the performance of data stream mining system. In this paper put forward a model which named Compound Gaussian Mixture Model (CGMM) and the clustering algorithm of CGMM which combines classical GMM...
The air flow is an important parameter for the proton exchange membrane fuel cells (PEMFC) engine. Based on a modified Elman neural network, a model, which is used to forecast the air flow for fuel cell compressor, will be introduced. And the Elman neural network is used to learn and train simulation experiments of the network, and compared with simulation result of the BP neural network. Simulation...
P2P worm based on loopholes spreading in peer-to-peer network is a serious security threat. According to the characteristics of P2P worms, a signature-behavior-based P2P worm detection approach detecting the known P2P worm based on characteristic string matching is proposed. In addition, this method can also detect unknown P2P worms based on behavior. This method is mainly composed of the technology...
For most SoCs, off-chip DRAM is an important resource that is shared by many heterogeneous function units(FU).To meet different memory access requirements by these FUs,it is crucial that the memory subsystem is capable of providing different quality of service(QoS).Due to the nature of DRAM, the available bandwidth greatly depends on the memory access sequence. However,conventional schedulers are...
Barrier construct in OpenMP program is a directive used to remove race code before continuing. Each thread waits until all of the other threads of a team have reached the barrier region. And data dependence is a technology to find whether two statements can be run in parallel. This paper presents two ways to optimize the OpenMP programa barrier. The first one is to remove redundant barrier with data...
We proposed a worm detection and defense system named bot-honeynet in this paper, which combines the best features of honeynet, anomaly detection and botnet. The combination of honeynet and anomaly detection system offers a tradeoff between false positive and false negative rates. The control mechanism of botnet can help our system control all the honeypots in the bot-honeynet. Bot-honeynet is designed...
The Godson-3 microprocessor aims at high-throughput server applications, high-performance scientific computing, and high-end embedded applications. It offers a scalable network on chip, hardware support for x86 emulation, and a reconfigurable architecture. The four-core Godson-3 chip is fabricated with 65-nm CMOS technology. Eight- and 16-core Godson-3 chips are in development.
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