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According to the application of the dithering signal in Analog-to-Digital Conversion (ADC), this paper proposes an optimum condition of the dithering signal against the nonlinearity of quantization noise in ADC. Theoretical analysis and experimental results indicate that the optimum dithering signal can alleviate the nonlinear characteristics of quantization noise effectively, and reduce the effect...
Although many particle swarm optimization (PSO) based feature subset selection methods have been proposed, most of them seem to ignore the difference of feature subset selection problems and other optimization problems. We analyze the search process of a PSO based wrapper feature subset selection algorithm and find that characteristics of feature subset selection can be used to optimize this process...
This paper presents an algorithmic approach for improving the performance of many types of stochastic dynamical simulations. The approach is to redesign existing algorithms that use sparse matrix-vector products (SPMV) with single vectors to instead use a more efficient kernel, the generalized SPMV (GSPMV), which computes with multiple vectors simultaneously. In this paper, we show how to redesign...
Hidden coal gas fire spontaneous combustion troubles are one of the greatest threats to the coal safety production due to the gas explosion. In this paper, a novel method of prediction the hidden fire source is presented by means of choosing the concentration of CO gas as the indicator to detect the hidden coal gas fire location because CO gas is first reach the alarm threshold in the process of coal...
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