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741
LPFFNet: Lightweight Prior Feature Fusion Network for SAR Ship Detection
Published 2025-05-01“…In addition, the enhanced ghost convolution (EGConv) is used to generate more reliable gradient information. And finally, the detection performance is improved by focusing on difficult samples through a smooth weighted focus loss function (SWF Loss). …”
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742
Double Critics and Double Actors Deep Deterministic Policy Gradient for Mobile Robot Navigation Using Adaptive Parameter Space Noise and Parallel Experience Replay
Published 2024-01-01“…Furthermore, a novel and powerful target-oriented reward function is employed to boost learning efficiency. …”
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743
Ferromagnetism in Nitrogen Doped Magnesium Oxide: a First Principle Study
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744
Early Breast Cancer Prediction Using Thermal Images and Hybrid Feature Extraction-Based System
Published 2025-01-01“…The back end of the methodology uses support vector machine (SVM) and extreme gradient boosting (XGB) classification algorithms to establish the relationship between the retrieved feature vector and breast functionality. …”
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745
Data-driven insights into the electronic and thermoelectric properties of 1T-Li2O: A combined DFT and ML investigation
Published 2025-06-01“…Specifically, to assess the electronic property, generalized gradient approximation (GGA) and hybrid exchange-correlation functionals were implemented. …”
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746
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747
How Does Nature Create the Painting “Gradient Coloration of ‘Manicure Finger’ Grape”? Integrated Omics Unveil the Pigments Basis and Metabolism Networks of Its Formation
Published 2025-03-01“…Here, based on integrated omics including anthocyanin, flavonoid metabolome, and transcriptome, the substances basis and metabolic mechanisms regulating gradient coloration were thoroughly resolved. In ‘Manicure Finger’, eight anthocyanins including malvidin‐3‐O‐glucoside, peonidin‐3‐O‐glucoside, and cyanidin‐3‐O‐glucoside were identified as color‐presenting substances, while flavones and flavonols, especially kaempferol‐3‐O‐rutinoside and quercetin‐3‐O‐glucoside, functioned as co‐pigments. …”
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748
Consistent frontal-limbic-occipital connections in distinguishing treatment-resistant and non-treatment-resistant schizophrenia
Published 2025-01-01“…Study design: 55 TR-SZs, 239 NTR-SZs, and 87 healthy controls (HCs) were recruited from the Affiliated Brain Hospital of Nanjing Medical University. Resting-state functional connection (FC) matrices were constructed from automated anatomical labeling (AAL), Yeo-Networks (YEO) and Brainnetome (BNA) atlases. …”
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749
Real‐Time Observation of Oxygen Diffusion in CGO Thin Films Using Spatially Resolved Isotope Exchange Raman Spectroscopy
Published 2024-11-01“…Therefore, access to the underlying constants of the functional materials via advanced but accessible and straightforward experimental techniques is key. …”
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750
Protist communities are correlated with abiotic soil factors, but not resources, prey, or predators along a subalpine secondary succession
Published 2025-06-01“…Protists are pivotal components of soil micro-food webs, influencing microbial functioning and nutrient cycling. While abiotic soil factors consistently drive protist communities, the roles of bottom-up (resources) and top-down (predators) forces remain understudied. …”
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751
Métodos de amostragem de solos em áreas sob plantio direto no Sudoeste Goiano Methods of soil sampling in areas under no-tillage in the Southwest Goiás
Published 2013-02-01“…The values of Ca, Mg, P, K, pH, CTC and V showed concentration gradient as a function of time of no tillage, superficial application of lime and fertilization in the planting rows. …”
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752
Optimization of Low-Loss, High-Birefringence, Single-Layer, Annular, Hollow, Anti-Resonant Fiber Using a Surrogate Model-Assisted Gradient Descent Method
Published 2024-12-01“…This paper proposes a novel optimization method for hollow-core, anti-resonant fiber based on a gradient descent algorithm assisted via a radial basis-function surrogate model. …”
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753
Improving Sharpness-Aware Minimization Using Label Smoothing and Adaptive Adversarial Cross-Entropy Loss
Published 2025-01-01“…However, SAM’s perturbation is based solely on the gradient of the standard cross-entropy loss. As the model approaches convergence, this gradient diminishes and oscillates, leading to inconsistent perturbation directions. …”
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754
Haemodynamic Patterns of Severe Aortic Stenosis
Published 2020-11-01“…The authors suggest the pilot haemodynamic classification of AS which includes 6 types (0-5) based on different combination of the following variables: left ventricle ejection fraction, stroke volume, mean aortic systolic pressure gradient. Severe AS with low transaortic pressure gradient in patients with depressed systolic function of the left ventricle (so called «low flow-low» gradient phenomenon) is referred to as the most frequent, classical haemodynamic pattern of low-gradient AS. …”
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755
Optimization and Application of Fuzzy Neural Network
Published 2020-12-01“…Regular terms are added to the cost function to update the parameters,and the convergence speed of the fuzzy neural network is guaranteed. …”
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756
Efficient impact load identification method using empirical mode decomposition
Published 2025-08-01“…According to the positioning results, an optimization objective function was constructed. The time history of the impact load was fitted by using the Gaussian basis function, and the optimal fitting parameters were quickly solved by using the two-dimensional gradient descent method.Tests conducted on a cantilever plate with dimensions of 600 mm×200 mm×3 mm show that with only one accelerometer, the success rate of 36 impact positioning tests is 91.67%. …”
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757
A New Non Quadratic Model For Unconstrained Non Linear Optimization
Published 2004-12-01“…A new non-quadratic model is proposed for solving unconstrained optimization problems, which modifies and develops the classical conjugate gradient methods. The technique has the same properties as the classical conjugate gradient method that can be applied to a quadratic function. …”
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758
High-Order Moment Models of Landmark Distribution for Local Homing Navigation
Published 2018-01-01“…The moment potential function calculates the sum of products of the feature and the distance of landmark particles as a holistic view, allowing a high order of the distance. …”
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759
Based on model randomization and adaptive defense for federated learning schemes
Published 2025-02-01“…MRC involves using a randomized discrete loss function in FL training to prevent gradient backward inference, enhancing model security. …”
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760
DFT Study of Intrinsic and Induced p-type Conductivity of ZnO Material
Published 2017-02-01“…Density functional theory and generalized gradient approximation including a Hubbard-like term was used in the present work to analyse p-type electrical conductivity as well as the switch of n-type p-type conductivity in the ZnO materials. …”
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