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Since the automatic word segmentation of Chinese text will bring the lack of information, method of word segmentation according to lexical chunk as segmentation unit are proposed. Use traditional segmentation method segment Chinese text based calculate mutual information between two lexical entries and adjacent frequency of two or more lexical entries, according to this calculated value judge and...
In general engineering network system, the transformation of the working state, from safety to failure, of unit and system is gradual. And there is an intermediate state between the states of being completely safety and completely failing. On the basis of "safety-intermediate-failure" three-stage working mode, this paper divides it into two-stage mode: "safety-non safety" and "non...
A nonlinear discrete-time system model is used for autonomous underwater vehicles (AUV) and the optimal output tracking control (OOTC) is designed. By introducing a sensitivity parameter and expanding around it, the original nonlinear two-point boundary value (TPBV) problem led by the OOTC problem is transformed into a series of linear TPBV problems containing known low-order nonlinear terms. Algorithm...
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