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It is very significant for urban development and urban wetland protection. Wetland, considered as the natural ecosystem and landscape style, has great resource potentiality and environmental function. For a long time, the change of wetland landscape pattern has been affected by human activity, and has changed the existing wetland function, and exerted influence on wetland environment. In this paper,...
Network attack increase day by day, which makes security defense become more and more important. In allusion to the deficiency of the existing defense software, an intelligent defense software (ISDS) is designed and its extended framework is put forward. The ISDS apperceives the environment and makes decision through self-decision system, which makes itself "know" how to adapt the circumstance...
Economic climate index is widely used to depict the macroeconomic running station. In the modern methods to construct the composite index, dynamic factor model is the most influential one. Considering the structural change in business cycle's upward and downward phases, the mathematical models constructed to compute the climate index monitoring the business cycles should involve the Markov switching...
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