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The network security situation perception technology as active defense technology has become the new research direction of network security field. On the basis of analyzing and summarizing the basic concept and the model of network security situation perception, put forward a method of network security situation perception based on artificial life. This method builds an artificial life model which...
Computer network operation (CNO) decision making activity includes three sub-activities: mission definition, scheme design and scheme evaluation. Scheme design produces many attack schemes of the same target. During scheme evaluation, attack schemes are evaluated and the comparatively optimal one is selected as course of action (COA) based on certain criterions. In this study, a multiple criteria...
A new model is presented to reveal investor heterogeneous beliefs impact on corporate financial decision, using marginal analysis method in the framework of the sequence of events. Our model theoretically interprets the phenomenon that firms issue equity in high stock price. This paper also tests theoretical predictions sampling China A-shares listed firms. The result of Chinese financial market provides...
The disparities among our country mortality rates per million tons in coal mine and other main mining countries is great, so the coal mine safe production becomes the noticeable questions, which keeped an eye on by the community more and more. Same as other industry profession safety, the coal mine safety has close contact with national economic development in addition to the safety engineering technology...
An equivalent price based algorithm is proposed, which applies the combinatorial double auction and trust theories into grid resource allocation and pricing. Firstly the price adjusting function is designed, which maps the nodes' bid prices under various trust values into the equivalent prices under base trust degree. Then the grid resources are allocated and priced based on combinatorial double auction...
This paper describes a formal methods approach to process engineering. The approach involves statechart based formal process modeling as well as the use of embedded assertion statecharts to ensure the modeled process adheres to stated requirements. This approach can help the process engineer develop and maintain a process. The formal nature of our approach can also help the process engineer to reason...
In this paper, it introduced the work theory of biometric identification technology and biometric identification system, discussed the disadvantages of single biometric feature identification technology and advantages of multi-biometric feature identification technology. It gave out the integration method and integration framework of multi-biometric features identification authentication system, and...
We have investigated a technique for recognising faces invariant of facial expressions. We apply multi-linear tensor algebra, which subsumes linear algebra, to analyse and recognise 3D face surfaces. This potent framework possesses a remarkable ability to deal with the shortcomings of principle component analysis in less constrained situations. A set of vector spaces can be used to represent the variation...
With the development of high rate data transmission technology via distribution line communication, the electric power, data, voice and video can be transferred in the same electric power distribution network, and the technology will be put in operation widely in the future. However the traditional technology of power line communication is not adaptable to the complex and harsh environment of distribution...
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