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In order to detect the obstructive sleep apnea (OSA) accurately, a non-contact way using Doppler radar is presented in this paper. The residual comparison based algorithm has been proposed to enhance the body movement cancellation and pre-event baseline calculation, so that the OSA event can be detected accurately. The experimental result shows the effectiveness of the proposed method for diagnosing...
Gradient boosting tree (GBT), a widely used machine learning algorithm, achieves state-of-the-art performance in academia, industry, and data analytics competitions. Although existing scalable systems which implement GBT, such as XGBoost and MLlib, perform well for datasets with medium-dimensional features, they can suffer performance degradation for many industrial applications where the trained...
In order to create a rapid, easy, and circulatory capabilities for multipurpose applications of remote sensing image, a network-oriented satellite remote sensing circulation architecture was proposed, and its key components was discussed in the same time. The client scheming and block data disposure were supplements to the integrity circulation architecture, conforming to which, clients can distribute...
With the rapid growth of requirements on satellite remote sensing image data, effective management and efficient publication of increasingly large image data has become an urgent problem. Based on the features of massive image data and Web publication, this paper does a deep research and a thorough discussion on multi-resolution pyramid model of global satellite remote sensing images, gives a reasonable...
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