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With the security situation in Cyberspace constantly becoming worse, Cyber threat detection has attracted a lot of researching attentions. In this paper, existing detection technologies are firstly reviewed. Secondly, a framework of capturing the abnormal traffic of botnets is proposed. Major modules and key detection techniques are presented at the same time. The hidden threat detection in physically...
Service flow in SOA systems need to detect quality of service (QoS) problems and to guarantee end-to-end performance. In previous work, we have proposed two faulty service identification methods: a dependency matrix based diagnosis and a Bayesian network based diagnosis. In this paper, we present a hybrid diagnosis to achieve high diagnosis accuracy and low diagnosis cost. The hybrid diagnosis reduces...
According to requirements, a solution of remote PLC experiment system has been introduced, including total architecture, hardware and software design. We made a remote experiment in order to control simple mechanical equipment with S7–200 PLC. Then through CP243-1IT, mechanism, PLC, server and clients from internet are mutually connected. By visiting lab web and operating panel of console interface,...
WPS (web processing service) is the specifications launched by OGC organizations for dealing with space data, which is different from the conventional Web Service. There aren't dedicated workflow environment for WPS service framework, and support of workflow environments in WPS application is the key technical challenges. Some of the workflow environment, such as Shark, still lack of effective implementation...
A proxy cache has quite a few difficult jobs to do. It is hard for people to effectively and efficiently do the maintenance work needless of mentioning the performance tuning work. In this paper we study the widely used proxy caching server--Squid. It suffers with well-designed tool to the management or evaluation of its performance or capability, which motivates us to design and implement friendly...
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