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In this paper, the high-frequency diffracted waves like the creeping waves are comprehensively analyzed by the Fock currents. On invoking the contour deformation method, the highly oscillatory Fock currents are efficiently calculated. Furthermore, the workload for the calculation of Fock currents is frequency-independent. To capture the high-frequency wave physics phenomenon, the Fock current is separated...
In this paper, in the framework of many-valued logic, the crisp lower and upper approximation operators of rough set theory are generalized to fuzzy environment, and the basic properties of that two operators are studied. Also, it is proved that our upper approximation operator is a generalization of T-upper fuzzy approximation operator defined by Mi [cf. J.S. Mi, Y. Leung, H.Y. Zhao, T. Feng, Generalized...
Function bidirectional S-rough sets realizes dynamic template matching between reference template and test template, then calculates the Levenstein distance with dynamic programming algorithm of Bellman principle and finds the knowledge distance measure which can reduce the compute complexity greatly.
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