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This paper discusses a new decision-support system that integrates data warehouse, knowledge warehouse and model warehouse. Contrast to the fixed model of the old decision-support system and its limited application, the new system can overcome the shortcoming of the old system efficiently, and also it can simplify model-obtaining and coding. So the new system strengthens the effectiveness, intelligence...
This paper constructs a multilayer and dimensionality network security data set, and a hierarchical assessment process which is made up of atomic situation, host situation and network situation is established. Then the theory of self-information entropy is adopted to compute the occurring probability of atomic situation, using the method of weighted summation to analyze the situation of every layer...
Aiming at the existing problems with traditional integration technology, the system structure, service and workflow of OGSA-DAI are analyzed thoroughly. Based on OGSA-DAI extension, the data heterogeneity of semantic is shielded by schema mapping. An integration model is proposed to solve data integration and distributed query under the grid environment, achieving transparent access to distributed...
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