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Image with MPEG-7 descriptors as features may loss local details. In this work, we combine MPEG-7 descriptors with local feature key points to cover both global and local image characteristics. Images are classified by a Radial Basis Function Neural Network (RBFNN) trained via a minimization of Localized Generalization Error Model (L-GEM). In this paper, we extract local feature key points by the...
The static synchronous compensator (STATCOM) is a flexible ac transmission system(FACTS) device which can be used to generate reactive power in long distance ac power transmission. Cascade multilevel STATCOM is a so strongly coupled and nonlinear system that conventional linear control cannot assure a satisfactory behavior. In order to achieve high dynamic performance and robustness of control system,...
Being a platform for electricity trade, electricity trade center needs a huge investment for its construction and operation, and the approach of ROI (return of investment) will greatly influence the efficient and fair operation of the whole electricity market. Based on the theory of transaction cost, this paper proposes a suitable approach to get the investment's return under current situation in...
This paper reports two geometric constraint-solving approaches for the same constraint problems based on symbolic computation and constructive computation. The method of determining convexo and concave vertex can be employed to selecting multiple solutions generated in symbolic approach. We also make much concern about under-constrained and over-constrained problems, which make the computation more...
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