prior structure
1.Compared with the regular rule-based expert system, the Bayesian network based ES can reason on the incomplete input information using the prior probability distribution; the topological structure of the network being used to express the qualitative knowledge and the probability distributions of the nodes in the network being used to express the uncertainty of the knowledge, which made the knowledge representation more intuitively and more clearly; applying the principle of the Bayesian chaining rule, bidirectional inference which allow infer from the cause to the effect and from the effect to the cause can be achieved.
3.By its predominance of prior-system, Zhejiang province has reached high-speed development and shaped the structure which based on SMEs enterprises for 20 years.
9.Software architecture is a set of concepts and design decisions about the structure and texture of software that must be made prior to concurrent engineering to enable effective satisfaction of architecturally significant explicit functional and quality requirements and implicit requirements of the product family, the problem, and the solution domains.
10.Abstract: The conventional variable structure control technique for uncertain system requires that the uncertainty bound is known as a premise to assure robustness.The requirement creates an over-conservative controller and enlarges chattering.The proposed controller regards the influence of unknown disturbances and parameter uncertainties as an equivalent disturbance and generates an on-line estimation used in SMC to cancel the slowly varying uncertainties by the mechanism of time delay.The reaching law approach is used to get the conditions and band of quasi-sliding mode.The new methodology offers a robust feedback control with much lower gains and reduces chattering without a prior knowledge of the uncertainty bounds or matched conditions.
