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Due to the high accuracy, Daubechies wavelet-based elements have been widely used in many engineering problems. However, comparing with traditional elements, wavelet-based elements always bring in more calculation works, especially as a higher element order is selected. It should be discussed in detail that on the promise of ensuring accuracy, how to select a proper order of Daubechies wavelet-based...
Given data drawn from a mixture of multivariate Gaussians, a basic problem is to accurately estimate the mixture parameters. We give an algorithm for this problem that has running time and data requirements polynomial in the dimension and the inverse of the desired accuracy, with provably minimal assumptions on the Gaussians. As a simple consequence of our learning algorithm, we we give the first...
We present a new algorithm for learning a convex set in n-dimensional space given labeled examples drawn from any Gaussian distribution. The complexity of the algorithm is bounded by a fixed polynomial in n times a function of k and ϵ where k is the dimension of the normal subspace (the span of normal vectors to supporting hyperplanes of the convex set) and the output is a hypothesis that correctly...
We propose a new calibrated localization method with 2-D laser range finder for indoor mobile robots. Localization is an essential area to recognize where it is for mobile robots' navigation. All localization methods need several precise sensors to obtain information from environment. However, data from sensors have errors inevitably. In this paper, a new pre-processing method of calibration is suggested...
Stream ciphers are widely used for information security. The keystream produced by a cipher must be unpredictable. Attacks on stream ciphers typically exploit some underlying patterns existing in the keystream. The objective of this paper is to develop such an attack with the help of machine learning algorithms. The Linear Feedback Shift Register (LFSR) has been solved for several test cases using...
A new kind of salinity controller of seawater desalination is presented. The calibration and circuit of the sensor are mainly discussed. Circuit design mainly introduced the analog circuit. Parameter calibration introduced the application of binary algebra interpolation method. Finally an improved method for raising measure accuracy is put forward.
Image registration is an important task in the field of computer vision and pattern recognition. And the applied values is also reflected in the study of remote sensing, medical imaging and the object indentifying of multi-sensor fusion. In this paper, a new subpixel registration methods which based on wavelet analysis was proposed by improving polynomial subdivision algorithm and pixel level registration...
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