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Recommender systems have become a popular and effective way to quickly discover new service items that are probably preferred by prospective users. Through analyzing the historical service usage data produced in the past, a recommender system can infer the potential user preferences and make accurate recommendations accordingly. However, in the edge environment, the service usage data stored in each...
The Partial Least Squares (PLS) algorithm has been widely applied in face recognition in recent years. However, all the improved algorithms of PLS did not utilize non-negativity and sparsity synchronously to improve the recognition accuracy and robustness. In order to solve these problems, this paper proposes a novel algorithm named Two-Dimension Non-negative Sparse Partial Least Squares (2DNSPLS),...
This paper presents a new content-based digital image-watermarking technique, which is effective in resisting geometry attack. With the robustness of the proposed Multi-scale Curvature Product (MSCP) corner detection algorithm, MSCP is utilized to extract corners from the low frequency components of the images after 3-level lifting wavelet transformation, and then the watermark is embedded into all...
A new matching metric-Cauchy-Schwarz divergence of corners (Corner Cauchy-Schwarz Divergence, CCSD) is defined, and a new approach for image registration based on CCSD and sub-pixel localization is proposed. Firstly corners in an image are detected by multi-scale Harris operator, which are taken as initial interest points. And then sub-pixel localization technique is applied to determine the location...
This paper present integrate robust control Method for High-power Variable-Speed Governor of Diesel Engine by loop-shaping theory. Diesel Engine working process and classical frequency control theory are combined to construct frequency restriction of engine speed; frequency compensator is utilized to improve the robustness of Multiplicative Perturbations and disturbance; loop-shaping method is applied...
This paper present robust Auto-MAP-Modify method for High-power Variable-Speed Governor of Diesel Engine by extended state observer. Firstly the uncertain between MAP parameter and real parameter is defined as additive-Perturbations. Secondly the original controller is reconstructed as a dynamic controller for sensitivity and noises, meanwhile a static controller for Auto-MAP-Modify. The H?? norm...
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