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1081
A note on approximate accelerated forward-backward methods with absolute and relative errors, and possibly strongly convex objectives
Published 2022-01-01“…Nesterov’s accelerated proximal gradient method) possibly relying on approximate proximal operators and allowing to exploit strong convexity of the objective function. …”
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1082
Mitral valve repair using leaflet expansion and subpartial annuloplasty in childrenCentral MessagePerspective
Published 2024-02-01“…Results: All children survived their surgeries with uneventful postoperative courses, except for 1 patient who needed an early reoperation to resolve a functional stenosis due to a spinnaker phenomenon. At discharge, mean gradient was 3.5 ± 3.9 mm Hg, with trivial mitral regurgitation in 9 patients (82%). …”
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1083
Homology Groups in Warped Product Submanifolds in Hyperbolic Spaces
Published 2021-01-01“…In this paper, we show that if the Laplacian and gradient of the warping function of a compact warped product submanifold Ωp+q in the hyperbolic space ℍm−1 satisfy various extrinsic restrictions, then Ωp+q has no stable integral currents, and its homology groups are trivial. …”
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1084
A Moving Boundary Model for Isothermal Drying and Shrinkage of Chayote Discoid Samples: Comparison between the Fully Analytical and the Shortcut Numerical Approaches
Published 2019-01-01“…The core of the model is the shrinkage velocity v, assumed equal to the water concentration gradient times a shrinkage function α representing the constitutive equation of the food material under investigation. …”
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1085
From Density to Efficiency: Exploring Urban Building Use Efficiency in 35 Large Chinese Cities
Published 2025-05-01“…First, UBUE shows significant spatial variation at national and urban scales, with a maximum disparity of 4.3 times among the 35 cities and a gradual decline along the urban–rural gradient within urban areas. Second, in cities in the western and northeastern areas, a smaller amount of urban function was generated per unit of newly constructed building volume, indicating that newly increased buildings are less efficient. …”
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1086
Computer Multimedia Art Pattern Creation Based on P-Filling Algorithm
Published 2021-01-01“…On this basis, the semantic P-filling algorithm and the perceptual P-filling algorithm are combined, and the unsaturated region is enlarged by improving the activation function sigmoid function, which solves the problem that the gradient is easy to disappear. …”
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1087
Nonsmooth analysis approach to Isaac's equation
Published 1993-01-01“…We study Isaacs' equation (∗)wt(t,x)+H(t,x,wx(t,x))=0 (H is a highly nonlinear function) whose natural solution is a value W(t,x) of a suitable differential game. …”
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1088
3D Imaging of Dielectric Objects Buried under a Rough Surface by Using CSI
Published 2015-01-01“…Green’s function of the two-part space with planar interface is obtained to be used in the process. …”
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1089
Video Visualization Technology and Its Application in Health Statistics Teaching for College Students
Published 2022-01-01“…In view of the present situation of “learning difficulty” in health statistics, this paper proposes a video visualization technology based on the convolutional neural network, which updates parameters by calculating the gradient of loss function to obtain accurate or nearly accurate loss function. …”
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1090
Intercept Guidance of Maneuvering Targets with Deep Reinforcement Learning
Published 2023-01-01“…In this paper, a novel guidance law based on a reinforcement learning (RL) algorithm is presented to deal with the maneuvering target interception problem using a deep deterministic policy gradient descent neural network. We take the missile’s line-of-sight (LOS) rate as the observation of the RL algorithm and propose a novel reward function, which is constructed with the miss distance and LOS rate to train the neural network off-line. …”
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1091
A Crowd Density Detection Algorithm for Tourist Attractions Based on Monitoring Video Dynamic Information Analysis
Published 2020-01-01“…Also, the algorithm uses jump connections between the top convolution and the bottom void convolution layers to reduce the risk of network gradient disappearance and gradient explosion and optimizes the network parameters using an intermediate supervision strategy. …”
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1092
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1093
Predictive modelling of hospital-acquired infection in acute ischemic stroke using machine learning
Published 2024-12-01“…Therefore, we employed the Gradient Boosting matching learning algorithm to establish predictive models for HAI occurrence in AIS patients and poor 30-day functional outcomes (modified Rankin Scale > 2) in AIS patients with HAI by analyzing electronic health records from 6560 AIS patients. …”
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1094
Effect of Mavacamten on Echocardiographic Features in Chinese Patients with Obstructive Hypertrophic Cardiomyopathy: Results from the EXPLORER-CN Study
Published 2025-04-01“…Abstract Introduction Mavacamten, a cardiac myosin inhibitor, has demonstrated positive outcomes in left ventricular outflow tract (LVOT) gradient reduction and improvements of symptoms and function in Chinese patients with symptomatic obstructive hypertrophic cardiomyopathy (HCM) in EXPLORER-CN. …”
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1095
Predicting cardiac frequencies in mammals
Published 2025-02-01“…Using data from the literature on heart rate in 95 mammals as a function of body mass, and the radius of the aorta as a function of body mass, we construct a target curve of cardiac frequency versus aortic radius. …”
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1096
Deep Learning Extraction of Tidal Creeks in the Yellow River Delta Using GF-2 Imagery
Published 2025-02-01“…Including dice coefficients in the focal loss function improves the model’s gradient and tackles class imbalance within the dataset. …”
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1097
Medium/high entropy alloys with heterogeneous structures for superior properties: A review
Published 2025-03-01“…These heterogeneous structures not only enhance the mechanical properties of the structured material but also exhibit immense potential in functional materials, enabling unprecedented functionalities. …”
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1098
On Complete Spacelike Hypersurfaces in a Semi-Riemannian Warped Product
Published 2013-01-01“…By applying Omori-Yau maximal principal theory and supposing an appropriate restriction on the norm of gradient of height function, we obtain some new Bernstein-type theorems for complete spacelike hypersurfaces with nonpositive constant mean curvature immersed in a semi-Riemannian warped product. …”
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Clinically applicable antibiotic modification of ready-to-use calcium phosphate cement pastes
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