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This study presents a hybrid data mining model for stock price that combines wavelet transform and support vector machines. In our proposed method, the wavelet transform is firstly applied to eliminate the noise of the stock time series. Secondly, the stepwise regression is employed in feature selection. Thirdly, the time delay concept is utilized to obtain the optimum prediction model. For illustration...
Full field X-ray spectroscopy imaging in NSLS-II will provide unprecedented insights into 2D/3D chemical compositions of nanomaterials. Spectra fitting which decomposes the experimental spectra data into chemical compositions plays a key role in the technique. Existing fitting methods including Brute Force (BF) and Constrained Least Square Fitting (CLSF) rest upon fitting fractions and suffer two...
In a server system, the switching voltage regulator (VR) noise coupled to the IO pins of the adjacent memory riser connector through the open air above the base board, and the link performance was impacted by the coupling. A simulation flow was developed to reproduce this EMI phenomenon. The flow first used electromagnetic field solvers to extract the VR related power network and the VR-IO coupling...
This paper proposed LSB Information Hiding algorithm which can Lift wavelet transform image. Furthermore, made the objective evaluation of image quality by the peak signal to noise ratio and normalized cross correlation coefficient. Achieving the purpose of information hiding with the secret bits of information to replace the random noise, using the lowest plane embedding secret information to avoid...
We describe a novel application of using data mining and statistical learning methods to automatically monitor and detect abnormal execution traces from console logs in an online setting. Different from existing solutions, we use a two stage detection system. The first stage uses frequent pattern mining and distribution estimation techniques to capture the dominant patterns (both frequent sequences...
In vision-based autonomous spacecraft docking multiple views of scene structure captured with the same camera and scene geometry are available under different lighting conditions. These ??multiple exposure?? images must be processed to localize visual features to compute the pose of the target object. This paper describes a novel multi-channel edge detection algorithm that localizes the structure...
Resonant clock distribution with distributed LC oscillators is promising to reducing clock power and jitter noise. Yet the difficulty in the integration of on-chip inductors still limits its application in practice. This paper resolves such a key issue with sub-50 ??m magnetic inductors, which are fully compatible with the CMOS process. These inductors leverage soft magnetic coils to achieve inductances...
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