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In this paper, we propose a cluster-based senone selection method to speed up the computation of deep neural networks (DNN) at the decoding time of speech recognition. In DNN-based acoustic models, the large number of senones at the output layer is one of the main causes that lead to the high computation complexity of DNNs. Inspired by the mixture selection method designed for the Gaussian mixture...
We have set up an AUV (autonomous underwater vehicle) space trajectory mathematical model. Then, the fourth-order Runge-Kutta method and full pivoting Gaussian elimination method are used for the computer simulation of different control distance for the different balancing weighting properties. The initial ballistic changes in the law are researched. The simulation results are as follows. In conditions...
In general, car body parts are very complex models by thousands of differential geometrically operations. For the computer-aided car-body part automatic modeling system, this complexity is a big challenge. This paper proposes a new body-based modeling method, using body-based features and a "sculpturing" strategy to create complex model via a computer car-body parts design system. This method...
In this paper, two evaluation factors are proposed to evaluate subdivision methods based on surface moments. Both factors are derived from moment invariants, and mainly used to measure shape stabilization. The experiment results show these factors are able to measure the distortion characteristic of 3-D models.
Lots of researches were focus on aerodynamic characters of the head, top and tail of vehicle in the past, but researches on bottom of vehicle were quite rare. This has been changed in these days. Optimization of aerodynamics via shape of vehicle was limited by modern automotive styling. So the focus has been moved to bottom of vehicle. In current work, the aerodynamic influence of ground clearance...
Images, polygonal models and point clouds are three kinds of heterogeneous cross-media resources, but they can stand for the same object. We introduce two kinds of homogeneous descriptions for them. First, we find a relation between surface moment invariants and shape distribution since they both use invariant geometric primitives. This relation can provide a way to approximate surface moment invariants...
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